Ericsson Internal
PRODUCT SPECIFICATION
1 (4)
Prepared (also subject responsible if other)
No.
EYISHDU 1/1301-BMR 464 Uen
Approved
Checked
Date
Rev
Reference
SEC/D (Julia You)
2014-02-17
E
Y
Key Features
• Small package
30.85 x 20.0 x 8.2 mm (1.215 x 0.787 x 0 .323 in)
SIP: 33.0 x 7.6 x 18. 1 m m (1.30 x 0.30 x 0.713 in)
• 0.6 V - 3.3 V output voltage range
• High efficiency, typ. 97.2% at 5Vin, 3.3Vout half load
• Configuration and Monitori ng via PMBus
• Adaptive compensation of PWM control loop & fast loop
transient response
• Synchonization & phase spreading
• Current sharing, Voltage Tracking & Voltage margining
• MTBF 14.2 Mh
General Characteristics
• Fully regulated
• For narrow board pitch applic ations (15 mm/0.6 in)
• Non-Linear Response for reduction of decoupling cap.
• Input under voltage shutdown
• Over temperature protection
• Output short -circuit & Output over voltage protection
• Remote control & Power Good
• Voltage sett i ng via pin-strap or PMBus
• Configurable via Graphical User Interface
• ISO 9001/14001 certified supplier
• Highly autom ated manufactur ing ensures q uality
Safety Approvals
Design for Environment
Meets requirements in high-
temperature lead-free soldering
processes.
Ericsson Internal
TABLE OF CONTENTS
1 (1)
Prepared (also subject responsible if other)
No.
SEC/S Stella Song 001 52-EN/LZT 146 435 Uen
Approved
Checked
Date
Rev
Reference
SEC/D (Julia You) 2012-08-10 D D
Contents
Ordering Infor mat ion ............................................................. 2
General Information ............................................................. 2
Safety Specification ............................................................. 3
Absolute Maximum Ratings ............................................................. 4
Electrical Specification
40A/ 0.6-3.3V Thr o ugh hole and Surf a ce mount vers ion BMR4640002, BMR4641002 ................ 5
40A/ 0.6-3.3V Single in Line version (SIP) BMR4642002 ...................................... 14
50A/ 0.6-3.3V Through hole and Surface mount vers ion BMR4640008, BMR4641008 .............. 23
50A/ 0.6-3.3V Single in Line version (SIP) BMR4642008 ...................................... 32
EMC Specification ........................................................... 41
Operating Information ........................................................... 41
Thermal Consideration ........................................................... 52
Connections ........................................................... 53
Mechanical Information ........................................................... 63
Soldering Information ........................................................... 66
Delivery Information ........................................................... 67
Product Qualification Specification ........................................................... 69
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
Ericsson Internal
PRODUCT SPECIFICATION
2 (4)
Prepared (also subject responsible if other)
No.
EYISHDU 1/1301-BMR 464 Uen
Approved
Checked
Date
Rev
Reference
SEC/D (Julia You)
2014-02-17
E
Y
Ordering Information
Product program
Output
BMR 464 x002/001 (x=0,1,2)
0.6-3.3 V, 40 A/ 132 W
BMR 464 x008/001 (x=0,1,2)
0.6-3.3 V, 50 A/ 165 W
Product number and Packagi ng
BMR 464 n1n2n3n4/n5n6n7n8
Options
n1
n2
n3
n4
/
n5
n6
n7
n8
Mounting ο
/
Mechanical
ο
/
Hardware
Variants ο ο /
Configuration file
/
ο
ο
ο
Packaging
/
ο
Options
Description
n1
n2
n3 n4
n5 n6 n7
n8
0
1
2
0
1
02
08
001
002
2xx
B
C
Through hole mount version (TH)
Surface mount version (SMD)
Single in line (SIP)
Standard mechanical option
5.5mm pin length (for SIP)
40 A
50 A, Dynamic Loop Compensation
CTRL pin positive logic (active high)
CTRL pin negative logic (active low)
Parallel Operation (200 for Master, 210
for Slave)
Antistatic tray of 100 products (SIP only)
Antistatic tape & reel of 130 products
(Sample delivery avalable in lower
quantities. Not for SIP)
Example: Product number BMR 464 0002/001C equals a through-hole
mounted, open frame, PMBus and analog pin strap, positive RC logic,
standard configuration variant, package tape&reel.
General Info rmation
Reliability
The failure rate (
λ
) and mean time between failures
(MTBF= 1/λ) is calculated at max output power and an
operating ambient temperature (TA) of +40°C. Ericsson
Power Modules uses Telc ordia SR-332 Issue 2 Method 1
to calculate the mean steady-s tate failure rate and
standard dev iation (σ).
Telcordia SR-332 Issue 2 also provides tec hniques to
estimate the u pper confidence levels of failure rat es based
on the mean and standard dev iation.
Mean steady-state failure rate, λ
Std. deviation, σ
71 nFailures/h 12.7 nFailures/h
MTBF (mean value) for the BMR 464 s er ies = 14.2 Mh.
MTBF at 90% confidence level = 11.52 Mh
Compatibili t y with RoHS requirements
The products are compatible with the rel ev ant clauses and
requirement s of the RoHS directive 2002/9 5/EC and have a
maximum concentration v alue of 0.1% by weight in
homogeneous materials for lead, mercury, hexavalent
chromium, PBB and PBDE and of 0.01% by weight i n
homogeneous materials for cadmium.
Exemptions in the RoHS directive utilized in Ericss on
Power Modules products are found in the St atement of
Compliance document.
Ericsson Power Modules f ulfills and will c ontinuousl y ful fill
all its obligations under reg ulation (EC) N o 1907/2006
concerning t he registration, evaluation, authoriz ation and
restriction of chemicals (REACH) as they enter into force
and is through pr oduct materials declarations prepar ing for
the obligations to communicate information on substances
in the products.
Quality Statement
The products are designed and manufactur ed in an
industrial e nv i ronment where quality syst ems and methods
like ISO 9000, Six Sigma, and SPC are inten s i v ely in use to
boost the cont inuous improvements st rategy. Infant
mortality or early failur es i n the products are screened out
and they are s ubjected to an A TE-based final test.
Conservative design rules, design rev i ews and product
qualifications, plus the high competence of an engaged
work force, contribute to the high quality of the produc ts.
Warranty
Warranty period and condi tions are defin ed in Ericsson
Power Modules General T er ms and Conditions of Sale.
Limitation of Liability
Ericsson Power Modules does not make any other
warranties, expressed or implied including any warranty of
merchantabi l ity or fitness for a particular purpose
(including, but not limited to, use in life support
applications , where malf unc tions of prod uct can cause
injury to a person’s healt h or l ife).
© Ericsson AB 2014
The informat i on and specifications in thi s technical
specificat ion i s believed t o be correct at the time of
publication. However, no l i ability is accepted for
inaccuraci es , printing error s or for any cons equences
thereof. Ericsson AB reserves the right to change the
contents of this technical s pecification at any time without
prior notice.
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
2
Ericsson Internal
PRODUCT SPECIFICATION
3 (4)
Prepared (also subject responsible if other)
No.
EYISHDU 1/1301-BMR 464 Uen
Approved
Checked
Date
Rev
Reference
SEC/D (Julia You)
2014-02-17
E
Y
Safety Specifi cati o n
General inf ormation
Ericsson Power Modules DC/DC converters and DC/DC
regulators are designed in accordance with safety
standards IEC/EN/UL 60950-1 Safety of Inf ormation
Technology E quipment.
IEC/EN/UL 60950-1 contains requirements to prevent injury
or damage due to the follo wing hazards:
• Electrical shock
• Energy hazar ds
• Fire
• Mechanical and heat hazards
• Radiation hazards
• Chemical hazards
On-board DC/DC converters and DC /DC regulators are
defined as com ponent power supplies. As components
they cannot f ul ly comply with the provisions of any safety
requirement s without “Conditions of Acceptability”.
Clearance between conductors and between conductiv e
parts of the component power supply and conductors on
the board in th e final product must meet the app l icable
safety requirements. Cer tain conditi ons of acceptab il ity
apply for component power supplies wit h li mited stand-off
(see Mechanical Information for further information). It is
the responsi bi lity of the ins taller to ensure that the final
product hous ing these components complies with the
requirement s of all applicable safety standards and
regulations for the final pr oduct.
Component power suppli es for general use should comply
with the requirements in IEC 60950-1, EN 60950-1 and
UL 60950-1 Safety of Infor mat i on Technology Equipment.
There are other more product r el ated standards, e.g.
IEEE 802.3 CSMA/CD (Ethernet) Access Method, and
ETS-300132-2 Power s upply interface at the input to
telecommunications equipment, oper ated by direct c ur rent
(dc), but all of these standards ar e based on
IEC/EN/UL 60950-1 with regards to saf ety.
Ericsson Power Modules DC/DC converters and DC/DC
regulators are UL 60950-1 recognized and certified in
accordance with EN 60950-1.
The flammability rating for all construction parts of the
products meet requirements for V-0 class material
according to IEC 60695-11-10, Fire hazard testing, test
flames – 50 W horiz ontal and vert i c al flame test m ethods.
The products s hould be installed in the end-u se equipment,
in accordance with the requi rements of t he ultimate
application. Normally the output of the DC/DC converter i s
considered as SELV (Safety Extra Low Voltage) and the
input source must be isolat ed by minimum Double or
Reinforced Insulation fr om the primary circuit (AC mai ns ) in
accordance with IEC/EN/U L 60950-1.
Isolated DC/DC converters
It is recommended that a slow blow fuse is to be used at
the input of each DC/DC converter. If an input filter is us ed
in the circuit the fuse should b e pl aced in front of the input
filter.
In the rare event of a component pr oblem that im poses a
short circuit on the input sour ce, this fuse will provide the
following f unctions:
• Isolate the fault from the input power source so as
not to affect the operation of other parts of the
system.
• Protect the dis tribution wiring from excessive
current and po wer loss thus prev enting haza r dous
overheating.
The galvanic isolation is verified in an electric st r ength test.
The test v oltage (Viso) between input and out put is
1500 Vdc or 2250 Vdc (refer to product specific ation).
24 V DC systems
The input voltage to the DC/DC converter is SELV (Safety
Extra Lo w Voltage) and the out put remains SELV under
normal and abnormal oper ati ng con diti ons .
48 and 60 V DC systems
If the input voltage to the DC/DC converter is 75 Vdc or
less, then the o utput remains S E LV (Safety Extr a Low
Voltage) under normal and a bnormal oper ating conditions.
Single fault t esting in the input power supply circuit should
be performed with the DC/DC c onv erter connected to
demonstrate that the input voltage does n ot exceed
75 Vdc.
If the input power source circ uit is a DC power system, the
source may be treated as a TNV-2 circuit an d testing has
demonstrated complianc e with SELV limits in accordance
with IEC/EN/UL60950-1.
Non-isolated DC/DC regulators
The input voltage to the DC/DC regulator is SELV (Safety
Extra Lo w Voltage) and the out put remains SELV under
normal and abnormal oper at i ng condit ions .
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
3
Ericsson Internal
PRODUCT SPECIFICATION 1 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Absolute Maximum Ratings
Characteristics min typ max Unit
TP1, TP2 Operating temperature (see Thermal Consideration section) -40 125 °C
TS Storage temperature -40 125 °C
VI Input voltage (See Operating Information Section for input and output voltage relations) -0.3 16 V
Logic I/O voltage CTRL, SA0, SA1, SALERT, SCL, SDA, VSET, SYNC, GCB, PG -0.3 6.5 V
Ground voltage differential -S, PREF, GND -0.3 0.3 V
Analog pin voltage VO, +S, VTRK -0.3 6.5 V
Stress in excess of Absolute Maximum Ratings may cause permanent damage. Absolute Maximum Ratings, sometimes referred to as no destruction limits, are
normally tested with one parameter at a time exceeding the limits in the Electrical Specification. If exposed to stress above these limits, function and performance
may degrade in an unspecified manner.
Configuration File
This product is designed with a digital control circuit. The control circuit uses a configuration file which determines the functionalit y and performance of the p roduct.
The Electrical Specification table shows parameter values of functionality and performance with the default configuration file, unless otherwise specified. The default
configuration file is designed to fit most application needs with focus on high efficiency. If different characteristics are required it is possible to change the
configuration file to optimize certain performance characteristics. Note that current sharing operation requires changed configuration file. See application notes
A
N307 for further inform ation.
In this Technical specification examples are included to show the possibilities with digital control. See Operating Information section for i nformation about trade offs
when optimizing certain key performance characteristics.
Fundamental Circuit Diagram
CI = 140 F, CO = 400 F
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
4
Ericsson Internal
PRODUCT SPECIFICATION 2 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Electrical Specification BMR 464 0002, BMR 464 1002
TP1 = -30 to +95 °C, VI = 4.5 to 14 V, VI > VO + 1.0 V
Typical values given at: TP1 = +25 °C, VI = 12.0 V, max IO, unless otherwise specified under Conditions.
Default configuration file, 190 10-CDA 102 0206/001.
External CIN = 470 µF/10 m, COUT = 470 µF/10 m . See Operating Information section for selection of capacitor types.
Sense pins are connected to the output pins.
Characteristics Conditions min typ max Unit
VI Input voltage rise time monotonic 2.4 V/ms
VO
Output voltage without pin strap 1.2 V
Output voltage adjustment range 0.60 3.3 V
Output voltage adjustment including
margining See Note 17 0.54 3.63 V
Output voltage set-point resolution ±0.025 % FS
Output voltage accuracy
Including line, load, temp.
See Note 14 -1 1 %
Current sharing operation
See Note 15 -2 2 %
Internal resistance +S/-S to VOUT/GND 4.7
Line regulation
VO = 0.6 V 2
mV
VO = 1.0 V 3
VO = 1.8V 3
VO = 3.3 V 3
Load regulation; IO = 0 - 100%
VO = 0.6 V 2
mV
VO = 1.0 V 2
VO = 1.8V 2
VO = 3.3 V 2
VOac Output ripple & noise
CO = 470 F (minimum external
capacitance). See Note 11
VO = 0.6 V 15
mVp-p
VO = 1.0 V 20
VO = 1.8 V 25
VO = 3.3 V 35
IO Output current See Note 18 0.001 40 A
IS Static input current at max IO
VO = 0.6 V 2.45
A
VO = 1.0 V 3.80
VO = 1.8 V 6.49
VO = 3.3 V 11.58
Ilim Current limit threshold 42 52 A
Isc Short circu it
current RMS, hicc u p mode ,
See Note 3
VO = 0.6 V 10 A
VO = 1.0 V 9
VO = 1.8 V 9
VO = 3.3 V 7
Efficiency
50% of max IO
VO = 0.6 V 84.6
%
VO = 1.0 V 89.7
VO = 1.8 V 93.3
VO = 3.3 V 95.3
max IO
VO = 0.6 V 81.8
%
VO = 1.0 V 87.7
VO = 1.8 V 92.4
VO = 3.3 V 95.0
Pd Power dissipation at max IO
VO = 0.6 V 5.37
W
VO = 1.0 V 5.60
VO = 1.8 V 5.92
VO = 3.3 V 6.98
Pli Input idling
power
(no load)
Default configuration:
Continues Conduction
Mode, CCM
VO = 0.6 V 1.10
W
VO = 1.0 V 1.10
VO = 1.8 V 1.40
VO = 3.3 V 2.20
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
5
Ericsson Internal
PRODUCT SPECIFICATION 3 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Characteristics Conditions min typ max Unit
PCTRL Input standby
power Turned off with
CTRL-pin
Default configuration:
Monitoring enabled,
Precise timi ng enabled 180
mW
Ci Internal input capacitance 140 F
Co Internal output capacitance 400 F
COUT Total external output capacitance See Note 9 470 30 000 F
ESR range of capacitors
(per single capacitor) See Note 9 5 30 m
Vtr1
Load transient
peak voltage
deviation
(H to L)
Load step
25-75-25% of
max IO
Default configuration
di/dt = 2 A/s
CO = 470 F (minimum
external capa citanc e)
see Note 12
VO = 0.6 V 250
mV
VO = 1.0 V 250
VO = 1.8 V 240
VO = 3.3 V 220
ttr1
Load transient
recovery time,
Note 5
(H to L)
Load step
25-75-25% of
max IO
Default configuration
di/dt = 2 A/s
CO = 470 F (minimum
external capa citanc e)
see Note 12
VO = 0.6 V 150
s
VO = 1.0 V 100
VO = 1.8 V 100
VO = 3.3 V 50
fs Switching frequency 320 kHz
Switching frequency range PMBus configurable 200-640 kHz
Switching frequency set-point accuracy -5 5 %
Control Circuit PWM Duty Cycle 5 95 %
Minimum Sync Pulse Width 150 ns
Input Clock Frequency Drift Tolerance External clock source -13 13 %
Input Under Voltage
Lockout,
UVLO
UVLO threshold 3.85 V
UVLO threshold range PMBus configurable 3.85-14 V
Set point accuracy -150 150 mV
UVLO hysteresis 0.35 V
UVLO hysteresis range PMBus configurable 0-10.15 V
Delay 2.5 s
Fault response See Note 3 Automatic restart, 70 ms
Input Over Voltage
Protection,
IOVP
IOVP threshold 16 V
IOVP threshold range PMBus configurable 4.2-16 V
Set point accuracy -150 150 mV
IOVP hysteresis 1 V
IOVP hysteresis range PMBus configurable 0-11.8 V
Delay 2.5 s
Fault response See Note 3 Automatic restart, 70 ms
Power Good, PG,
See Note 2
PG threshold 90 % VO
PG hysteresis 5 % VO
PG delay 10 ms
PG delay range PMBus configurable 0-500 s
Output vol tag e
Over/Under Voltage
Protection,
OVP/UVP
UVP threshold 85 % VO
UVP threshold range PMBus configurable 0-100 % VO
UVP hysteresis 5 % VO
OVP threshold 115 % VO
OVP threshold range PMBus configurable 100-115 % VO
UVP/OVP response time 25 s
UVP/OVP
response time range PMBus configurable 5-60 s
Fault response See Note 3 Automatic restart, 70 ms
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
6
Ericsson Internal
PRODUCT SPECIFICATION 4 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Characteristics Conditions min typ max Unit
Over Current
Protection,
OCP
OCP threshold 48 A
OCP threshold range PMBus configurable 0-48 A
Protection delay, See Note 4 32 Tsw
Protection delay range PMBus configurable 1-32 Tsw
Fault response See Note 3 Automatic restart, 70 ms
Over Temperature
Protection,
OTP at P1
See Note 8
OTP threshold 120 C
OTP threshold range PMBus configurable -40…+120 C
OTP hysteresis 15 C
OTP hysteresis range PMBus configurable 0-160 C
Fault response See Note 3 Automatic restart, 240 ms
VIL Logic input low threshold SYNC, SA0, SA1, SCL , SDA,
GCB, CTRL, VSET 0.8 V
VIH Logic input high threshold 2 V
IIL Logic input low sink current CTRL 0.6 mA
VOL Logic output low signal level SYNC, SCL, SDA, S ALERT,
GCB, PG
0.4 V
VOH Logic output high signal level 2.25 V
IOL Logic output low sink current 4 mA
IOH Logic output high source current 2 mA
tset Setup time, SMBus See Note 1 300 ns
thold Hold time, SMBus See Note 1 250 ns
tfree Bus free time, SMBus See Note 1 2 ms
C
p
Internal capacitance on logic pins 10 pF
Initialization time See Note 10 35 ms
Output Voltage
Delay Time
See Note 6
Delay duration See Note 16 10 ms
Delay duration range PMBus configurable 2-5000 00
Delay accuracy
turn-on
Default config uration:
CTRL controlled
Precise timing enabled ±0.25 ms
PMBus controlled
Precise timing disabled
Current sharing operation -0.25/+4 ms
Delay accuracy
turn-off -0.25/+4 ms
Output Voltage
Ramp Time
See Note 13
Ramp duration 10 ms
Ramp duration range PMBus configurable 0-200
Ramp time accuracy 100 µs
Current sharing operation 20 %
VTRK Input Bias Current VVTRK = 5.5 V 110 200 µA
VTRK Tracking Ramp Accuracy (VO - VVTRK)
100% tracking, see Note 7 -100 100 mV
Current sharing operation
2 phases, 100% tracking
VO = 1.0 V, 10 ms ramp ±100 mV
VTRK Regulation Accuracy (VO - VVTRK) 100% Tracking -1 1 %
Current sharing operation
100% Tracking -2 2 %
Current difference be tween products in a current
sharing gro up Steady state operation Max 2 x READ_IOUT monitoring accuracy
Ramp-up 4 A
Number of products in a current sharing group 7
Monitoring accuracy
READ_VI N vs VI 3 %
READ_VOU T vs VO 1 %
READ_IO UT vs IO IO = 0-40 A, TP1 = 0 to +95 °C
VI = 4.5-14 V, VO = 1.0 V ±2.5 A
READ_IO UT vs IO IO = 0-40 A, TP1 = 0 to +95 °C
VI = 4.5-14 V, VO = 0.6-3.3 V ±4 A
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
7
Ericsson Internal
PRODUCT SPECIFICATION 5 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Note 1: See section I2C/SMBus Setup and Hold Times – Definitions.
Note 2: Monitorable over PMBus Interface.
Note 3: Automatic restart ~70 or 240 ms after fault if the fault is no longer present. Continuous restart attempts if the fault reappear after restart. See Operati ng Information and AN302 f or
other fault response options.
Note 4: Tsw is the switching period.
Note 5: Within +/-3% of VO
Note 6: See section Soft-start Power Up.
Note 7: Tracking functionality is designed to follow a VTRK signal with slew rate < 2.4 V/ms. For faster VTRK signals accuracy will depend on the regulator bandwidth.
Note 8: See section Over Temperature Protection (OTP).
Note 9: See section External Capacitors.
Note 10: See section Initialization Procedure.
Note 11: See graph Output Ripple vs External Capacitance and Operating information section Output Ripple and Noise.
Note 12: See graph Load Transient vs. External Capacitance and Operating information section External Capacitors.
Note 13: Time for reaching 100% of nominal Vout.
Note 14: For Vout < 1.0 V accuracy is +/-10 mV. For further deviations see section Output Voltage Adjust using PMBus.
Note 15: Accuracy here means deviation from ideal output voltage level given by configured droop and actual load. Includes lin e, load and temperature variations.
Note 16: For current sharing the Output Voltage Delay Time must be reconfigured to minimum 15 ms, see AN307 for details.
Note 17: For steady state operation above 1.05 x 3.3 V, please contact your local Ericsson sales representative.
Note 18: A minimum load current is not required if Low Power mode is used (monitoring disabled).
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
8
Ericsson Internal
PRODUCT SPECIFICATION 6 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Typical Characteristics
Efficiency and Power Dissipation BMR 464 0002, BMR 464 1002
Efficiency vs. Output Current, VI = 5 V Power Dissipation vs. Output Current, VI = 5 V
Efficiency vs. load current and output voltage:
TP1 = +25 °C, VI=5 V, fsw = 320 kHz, CO = 470 µF/10 m. Dissipated power vs. load current and output voltage:
TP1 = +25 °C, VI= 5 V, fsw = 320 kHz, CO= 470 µF/10 m.
Efficiency vs. Ou tput Current, VI = 12 V Power Dissipation vs. Output Current, VI = 12 V
Efficiency vs. load current and output voltage at
TP1 = +25 °C, VI = 12 V, fsw = 320 kHz, CO = 470 µF/10 m. Dissipated power vs. load current and output voltage:
TP1 = +25 °C, VI= 12 V, fsw = 320 kHz, CO = 470 µF/10 m.
Efficiency vs. Output Current and
Switching Frequency Power Dissipation vs. Output Current and
Switch in g freq u e nc y
Efficiency vs. load current and switch frequency at
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, CO = 470 µF/10 m
Default configuration except changed frequency
Dissipated power vs. load current and switch frequency at
TP1 = +25 °C. VI = 12 V, VO = 1.0 V, CO = 470 µF/10 m
Default configuration except changed frequenc y
75
80
85
90
95
100
0 8 16 24 32 40
[%]
[
A
]
0.6 V
1.0 V
1.8 V
3.3 V
0
2
4
6
8
0 8 16 24 32 40
[W]
[
A
]
0.6 V
1.0 V
1.8 V
3.3 V
75
80
85
90
95
100
0 8 16 24 32 40
[%]
[A]
0.6 V
1.0 V
1.8 V
3.3 V
0
2
4
6
8
0 8 16 24 32 40
[W]
[
A
]
0.6 V
1.0 V
1.8 V
3.3 V
70
75
80
85
90
95
0 8 16 24 32 40
[%]
[A]
200
kHz
320
kHz
480
kHz
640
kHz
0
2
4
6
8
0 8 16 24 32 40
[W]
[
A
]
200
kHz
320
kHz
480
kHz
640
kHz
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
9
Ericsson Internal
PRODUCT SPECIFICATION 7 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Typical Characteristics
Load Transient BMR 464 0002, BMR 464 1002
Load Transient vs. Extern a l Capa citance, VO = 1.0 V L oad Transient vs. External Capacitance, VO = 3.3 V
Load transient peak voltage deviation vs. external capacitance.
Step-change (10-30-10 A). Par allel coupling of capacitors with 470 µF/10 m,
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, fsw = 320 kHz, di/dt = 2 A/µs
Load transient peak voltage deviation vs. external capacitance.
Step-change (10-30-10 A). Parallel coupling of capacitors with 470 µF/10 m,
TP1 = +25 °C, VI= 12 V, VO= 3.3 V, f sw = 320 kHz, di/dt = 2 A/µs
Load transient vs. Switch Frequency Output L oad Transien t Response, Default PID/NLR
Load transient peak voltage deviation vs. frequency.
Step-change (10-30-10 A).
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, CO = 470 µF/10 m
Output voltage response to load
current step-change (10-30-10 A) at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
di/dt = 2 A/µs, fsw = 320 kHz,
CO = 470 µF/10 m
Top trace: output voltage (200 mV/div.).
Bottom trace: load current (10 A/div.).
Time scale: (0.1 ms/div.).
Note: In the load transient graphs, the worst-case scenario (load step 30-10 A) has been
considered.
0
50
100
150
200
250
012345
[mV]
[mF]
Default
PID/NLR
Opt. PID, No
NLR
Default PID,
Opt. NLR
Opt. PID/NLR
0
50
100
150
200
250
012345
[mV]
[mF]
Default
PID/NLR
Opt. PID, No
NLR
Default PID,
Opt. NLR
Opt. PID/NLR
50
100
150
200
250
300
200 300 400 500 600
[mV]
[kHz]
Default
PID/NLR
Opt. PID,
No NLR
Default PID,
Opt. NLR
Opt.
PID/NLR
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
10
Ericsson Internal
PRODUCT SPECIFICATION 8 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Typical Characteristics
Output Current Characteristic BMR 464 0002, BMR 464 1002
Output Current Derating, VO = 0.6 V Output Current De ra ting , VO = 1.0 V
A
vailable load current vs. ambient air temperat ure and airflow at
VO = 0.6 V, VI = 12 V. See Thermal Consideration section. Available load current vs. ambient air temperature and airflow at
VO= 1.0 V, VI = 12 V. See Thermal Consideration section.
Output Current Derating, VO = 1.8 V Output Current Derating, VO= 3.3 V
A
vailable load current vs. ambient air temperat ure and airflow at
VO = 1.8 V, VI = 12 V. See Thermal Consideration section.
A
vailable load current vs. ambient air tem per atur e and airflow at
VO = 3.3 V, VI = 12 V. See Thermal Consideration section.
Current Limit Characteristics, VO = 1.0 V Current Limit Characteristics, VO = 3.3 V
Output voltage vs. load current at TP1 = +25 °C, VO = 1.0 V.
Note: Output enters hiccup mode at current limit. Output volta ge vs. load current at TP1 = +25 °C, VO = 3.3 V.
Note: Output enters hiccup mode at current limit.
0
10
20
30
40
40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0
10
20
30
40
40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0
10
20
30
40
40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0
10
20
30
40
40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0,0
0,3
0,6
0,9
1,2
40 42 44 46 48 50
[V]
[A]
4.5 V
5.0 V
12 V
14 V
VI = 12, 14 V
0,0
1,0
2,0
3,0
4,0
40 42 44 46 48 50
[V]
[A]
4.5 V
5.0 V
12 V
14 V
VI = 12, 14 V
VI = 4.5, 5.0 V
VI = 4.5, 5.0 V
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
11
Pr
e
E
A
Ap
E
A
T
y
O
O
u
O
u
V
I
=
I
O
=
O
u
O
u
O
u
Ou
t
Par
1
2
3
4
[
1
2
3
4
e
pared (also subject
A
B/FJB/GM
proved
A
B/FJB/GM
y
pical Char
a
utput Volta
g
u
tput Ripple
u
tput voltage rippl
e
=
12 V, C
O
= 470
=
40 A
u
tput Ripple
v
u
tput voltage rippl
e
u
tput Ripple
v
t
put voltage ripple
a
llel coupling of c
a
0
1
0
2
0
3
0
4
0
57
mV
pk-pk
]
0
1
0
2
0
3
0
4
0
01
[mV]
responsible if other)
QLAANDR
(Kse ni a Ha r
a
cteristics
g
e
& Noise, VO
=
e
at: T
P1
= +25 °C
µF/10 m
v
s. Input Vol
t
e
V
pk-pk
at: T
P1
= +
v
s. External
C
V
pk-pk
at: T
P1
= +
2
a
pacitors with 47
0
9
2
3
risen)
=
1.0 V
, Trace: output v
o
Time scale: (2
µ
t
age
25°C, C
O
= 470 µ
F
C
apacitance
2
5 °C, V
I
= 12 V, I
O
0
µF/10 m,
11 1
3
3
4
Checked
(MICR
F
o
ltage (10 mV/div
.
µ
s/div.).
F
/10 m, I
O
= 40
A
O
= 40 A.
3
[V]
5[mF]
Eric
s
PR
O
No.
2/13
Date
F
) 201
4
Out
p
.
). Outp
u
V
I
= 1
I
O
=
4
Out
p
A
. Outp
u
I
O
=
4
Loa
d
Load
0.6 V
1.0 V
1.8 V
3.3 V
0
20
40
60
80
100
2
[m
V
0.6 V
1.0 V
1.8 V
3.3 V
0,9
9
0,9
9
1,0
0
1,0
0
1,0
1
[V]
s
son Interna
O
DUCT SPE
C
01-BMR 46
4
4
-05-02
p
ut Ripple &
u
t voltage ripple a
t
2 V, C
O
= 470 µF
/
4
0 A
p
ut Ripple v
s
u
t voltage ripple
V
4
0
A
. Default confi
d
regulation,
regu latio n at V
o
=
2
00 250 300
V
pk-pk
]
9
0
9
5
0
0
0
5
1
0
08
l
C
IFICATIO
N
4
Uen
Rev
R
C
BM
R
Noise, V
O
=
3
t
: T
P1
= +25 °C,
/
10 m
T
T
s
. Frequency
V
pk-pk
at: T
P1
= +25
°
guration except c
h
V
O
=1.0
V
1.0 V at: T
P1
= +
2
350 400 4
5
16 24
N
R
eference
R
464 00 02 ,
B
3
.3 V
T
race: output vol
t
T
ime scale: (2 µs
/
°
C, V
I
= 12 V
,
C
O
=
h
anged frequenc
y
2
5 °C, C
O
= 470 µ
F
5
0 500 550
32 4
0
9 (
2
B
MR 464 1
0
t
age (10 mV/div.).
/
div.).
=
470 µF/10 m,
y
.
F
/10 m
600 [kHz]
0.6
1.0
1.8
3.3
0
[A]
4.5
V
5.0
V
12 V
14 V
2
1)
0
02
V
V
V
V
V
V
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
12
Ericsson Internal
PRODUCT SPECIFICATION 10 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Typical Characteristics
Start-up and shut-down BMR 464 0002, BMR 464 1002
Start-up by inpu t sour ce Shut-do wn by input sour ce
Start-up enabled by connecting VI at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 m, IO = 40 A
Top trace: output voltage (0.5 V/div.).
Bottom trace: input voltage (5 V/div.).
Time scale: (20 ms/div.).
Shut-down enabled by disconnecting
VI at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 m, IO = 40 A
Top trace: output voltage (0.5 V/div).
Bottom trace: input voltage (5 V/div.).
Time scale: (2 ms/div.).
Start-up by CTRL signal Shut-down by CTRL signal
Start-up by enabling CTRL signal at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 m, IO = 40 A
Top trace: output voltage (0.5 V/div.).
Bottom trace: CTRL signal (5 V/div.).
Time scale: (20 ms/div.).
Shut-down enabled by disconnecting
VI at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 m, IO = 40 A
Top trace: output voltage (0.5 V/div).
Bottom trace: CTRL signal (5 V/div.).
Time scale: (2 ms/div.).
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
13
Ericsson Internal
PRODUCT SPECIFICATION 11 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Electrical Specification BMR 464 2002 (SIP)
TP1 = -30 to +95 °C, VI = 4.5 to 14 V, VI > VO + 1.0 V
Typical values given at: TP1 = +25 °C, VI = 12.0 V, max IO, unless otherwise specified under Conditions.
Default configuration file, 190 10-CDA 102 0259/001.
External CIN = 470 µF/10 m, COUT = 470 µF/10 m. See Operating Information section for selection of capacitor types.
Sense pins are connected to the output pins.
Characteristics Conditions min typ max Unit
VI Input voltage ris e time monotonic 2.4 V/ms
VO
Output voltage without pin strap 1.2 V
Output voltage adjustment range 0.60 3.3 V
Output voltage adjustment including
margining See Note 17 0.54 3.63 V
Output voltage set-point resolution ±0.025 % FS
Output voltage accuracy
Including line, load, temp.
See Note 14 -1 1 %
Current sharing operation
See Note 15 -2 2 %
Internal resistance +S/-S to VOUT/GND 4.7
Line regulation
VO = 0.6 V 2
mV
VO = 1.0 V 2
VO = 1.8V 2
VO = 3.3 V 2
Load regulation; IO = 0 - 100%
VO = 0.6 V 2
mV
VO = 1.0 V 2
VO = 1.8V 2
VO = 3.3 V 2
VOac Output ripple & noise
CO = 470 F (minimum external
capacitance). See Note 11
VO = 0.6 V 20
mVp-p
VO = 1.0 V 25
VO = 1.8 V 30
VO = 3.3 V 45
IO Output current See Note 18 0.001 40 A
IS Static input current at max IO
VO = 0.6 V 2.46
A
VO = 1.0 V 3.81
VO = 1.8 V 6.51
VO = 3.3 V 11.61
Ilim Current limit threshold 42 52 A
Isc Short circuit
current RMS, hicc up mode ,
See Note 3
VO = 0.6 V 9 A
VO = 1.0 V 8
VO = 1.8 V 8
VO = 3.3 V 6
Efficiency
50% of max I O
VO = 0.6 V 85.8
%
VO = 1.0 V 90.5
VO = 1.8 V 93.7
VO = 3.3 V 95.5
max IO
VO = 0.6 V 81.4
%
VO = 1.0 V 87.5
VO = 1.8 V 92.1
VO = 3.3 V 94.7
Pd Power dissipation at max IO
VO = 0.6 V 5.48
W
VO = 1.0 V 5.70
VO = 1.8 V 6.12
VO = 3.3 V 7.32
Pli Input idling
power
(no load)
Default configuration:
Continues Conduction
Mode, CCM
VO = 0.6 V 0.90
W
VO = 1.0 V 0.90
VO = 1.8 V 1.10
VO = 3.3 V 1.70
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
14
Ericsson Internal
PRODUCT SPECIFICATION 12 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Characteristics Conditions min typ max Unit
PCTRL Input standby
power Turned off with
CTRL-pin
Default configuration:
Monitoring enabled,
Precise timing enabled 170
mW
Ci Internal input capacitance 140 F
Co Internal output capacitance 400 F
COUT Total external output capacitance See Note 9 470 30 000 F
ESR range of capacitors
(per single capacitor) See Note 9 5 30 m
Vtr1
Load transient
peak volta ge
deviation
(H to L)
Load step
25-75-25% of
max IO
Default configuration
di/dt = 2 A/s
CO = 470 F (minimum
external capacitance )
see Note 12
VO = 0.6 V 240
mV
VO = 1.0 V 240
VO = 1.8 V 220
VO = 3.3 V 200
ttr1
Load transient
recovery time,
Note 5
(H to L)
Load step
25-75-25% of
max IO
Default configuration
di/dt = 2 A/s
CO = 470 F (minimum
external capacitance )
see Note 12
VO = 0.6 V 120
s
VO = 1.0 V 100
VO = 1.8 V 80
VO = 3.3 V 40
fs Switching frequency 320 kHz
Switching frequency range PMBus configurable 200-640 kHz
Switching frequency set-point accuracy -5 5 %
Control Cir cuit PWM Duty Cycle 5 95 %
Minimum Sync Pulse Width 150 ns
Input Clock Frequency Drift Tolerance External clock source -13 13 %
Input Under Voltage
Lockout,
UVLO
UVLO threshold 3.85 V
UVLO threshold range PMBus configurable 3.85-14 V
Set point accuracy -150 150 mV
UVLO hysteresis 0.35 V
UVLO hysteresis range PMBus configurable 0-10.15 V
Delay 2.5 s
Fault response See Note 3 Automatic restart, 70 ms
Input Over Voltage
Protection,
IOVP
IOVP threshold 16 V
IOVP threshold range PMBus configurable 4.2-16 V
Set point accuracy -150 150 mV
IOVP h ysteresis 1 V
IOVP h ysteresis range PMBus conf igurable 0-11.8 V
Delay 2.5 s
Fault response See Note 3 Automatic restart, 70 ms
Power Good, PG,
See Note 2
PG thre shold 90 % VO
PG hysteresis 5 % VO
PG delay 10 ms
PG delay range PMBus configurable 0-500 s
Output voltage
Over/Under Voltage
Protection,
OVP/UVP
UVP threshold 85 % VO
UVP threshold range PMBus configurable 0-100 % VO
UVP hysteresis 5 % VO
OVP threshold 115 % VO
OVP threshold range PMBus configurable 100-115 % VO
UVP/OVP response time 25 s
UVP/OVP
response time range PMBus configurable 5-60 s
Fault response See Note 3 Automatic restart, 70 ms
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
15
Ericsson Internal
PRODUCT SPECIFICATION 13 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Characteristics Conditions min typ max Unit
Over Current
Protection,
OCP
OCP thres hold 48 A
OCP threshold range PMBus configurable 0-48 A
Protection delay, See Note 4 32 Tsw
Protection delay range PMBus configurable 1-32 Tsw
Fault response See Note 3 Automatic restart, 70 ms
Over Temperature
Protection,
OTP at P1
See Note 8
OTP threshold 120 C
OTP threshold range PMBus configurable -40…+120 C
OTP hysteresis 15 C
OTP hysteresis range PMBus configurable 0-160 C
Fault response See Note 3 Automatic restart, 240 ms
VIL Logic input low threshold SYNC, SA0, SA1, SCL, SDA,
GCB, CTRL, VSET 0.8 V
VIH Logic input high threshold 2 V
IIL Logic input low sink current CTRL 0.6 mA
VOL Logic output low signal level SYNC, SCL , SDA, SAL ER T,
GCB, PG
0.4 V
VOH Logic output high signal level 2.25 V
IOL Logic output low sink current 4 mA
IOH Logic output high source current 2 mA
tset Setup time, SMBus See Note 1 300 ns
thold Hold time, SMBus See Note 1 250 ns
tfree Bus free time, SMBus See Note 1 2 ms
C
p
Internal capacitance on logic pins 10 pF
Initialization time See Note 10 35 ms
Output Voltage
Delay Time
See Note 6
Delay duration See Note 16 10 ms
Delay duration range PMBus configurable 2-500000
Delay accuracy
turn-on
Default configuration:
CTRL controlled
Precise timing enabled ±0.25 ms
PMBus controll ed
Precise timing disabled
Current sharing operation -0.25/+4 ms
Delay accuracy
turn-off -0.25/+4 ms
Output Voltage
Ramp Time
See Note 13
Ramp duration 10 ms
Ramp duration range PMBus configurable 0-200
Ramp time accuracy 100 µs
Current sharing operation 20 %
VTRK Input Bias Current VVTRK = 5.5 V 110 200 µA
VTRK Tracking Ramp Accuracy (VO - VVTRK)
100% tracking, see Note 7 -100 100 mV
Current sharing operation
2 phases, 100% tracking
VO = 1.0 V, 10 ms ramp ±100 mV
VTRK Regulation Accuracy (VO - VVTRK) 100% Tracking -1 1 %
Current sharing operation
100% Tracking -2 2 %
Current difference between products in a current
sharing group Steady state operation Max 2 x READ_IOUT monitoring accuracy
Ramp-up 4 A
Number of products in a current sharing group 7
Monitoring accuracy
READ_VIN vs VI 3 %
READ_VOUT vs VO 1 %
READ_IOUT vs IO IO = 0-40 A, TP1 = 0 to +95 °C
VI = 4.5-14 V, VO = 1.0 V ±2.5 A
READ_IOUT vs IO IO = 0-40 A, TP1 = 0 to +95 °C
VI = 4.5-14 V, VO = 0.6-3.3 V ±4 A
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
16
Ericsson Internal
PRODUCT SPECIFICATION 14 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Note 1: See section I2C/SMBus Setup and Hold Times – Definitions.
Note 2: Monitorable over PMBus Interface.
Note 3: Automatic restart ~70 or 240 ms after fault if the fault is no longer present. Continuous restart attempts if the fault reappear after restart. See Operating Information and AN302 for
other fault response options.
Note 4: Tsw is the switching period.
Note 5: Within +/-3% of VO
Note 6: See section Soft-start Power Up.
Note 7: Tracking functionality is designed to follow a VTRK signal with slew rate < 2.4 V/ms. For faster VTRK signals accuracy will depend on the regulator bandwidth.
Note 8: See section Over Temperature Protection (OTP).
Note 9: See section External Capacitors.
Note 10: See section Initialization Procedure.
Note 11: See graph Output Ripple vs External Capacitance and Operating information section Output Ripple and Noise.
Note 12: See graph Load Transient vs. External Capacitance and Operating information section External Capacitors.
Note 13: Time for reaching 100% of nominal Vout.
Note 14: For Vout < 1.0 V accuracy is +/-10 mV. For further deviations see section Output Voltage Adjust using PMBus.
Note 15: Accuracy here means deviation from ideal output voltage level given by configured droop and actual load. Includes line, load and temperature variations.
Note 16: For current sharing the Output Voltage Delay Time must be reconfigured to minimum 15 ms, see AN307 for details.
Note 17: For steady state operation above 1.05 x 3.3 V, please contact your local Ericsson sales representative.
Note 18: A minimum load current is not required if Low Power mode is used (monitoring disabled).
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
17
Ericsson Internal
PRODUCT SPECIFICATION 15 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Typical Characteristics
Efficiency and Power Dissipation BMR 46 4 2002 (SIP)
Efficiency vs. Output Current, VI = 5 V Power Dissipation vs. Output Current, VI = 5 V
Efficiency vs. load current and output voltage:
TP1 = +25 °C, VI = 5 V, fsw = 320 kHz, CO = 470 µF/10 m. Dissipated power vs. load current and output voltage:
TP1 = +25°C. VI= 5 V, fsw = 320 kHz, CO= 470 µF/10 m.
Efficiency vs. Output Current, VI = 12 V Power Dissipation vs. Output Current, VI = 12 V
Efficiency vs. load current and output voltage at
TP1 = +25 °C, VI = 12 V, fsw = 320 kHz, CO = 470 µF/10 m. Dissipated power vs. load current and output voltage:
TP1 = +25 °C, VI= 12 V, fsw = 320 kHz, CO = 470 µF/10 m.
Efficiency vs. Output Current and
Switching Frequency Power Dissipation vs. Output Current and
Switch in g freq u e nc y
Efficiency vs. load current and switch frequency at
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, CO = 470 µF/10 m
Default configuration except changed frequency
Dissipated power vs. load current and switch frequency at
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, CO = 470 µF/10 m
Default configuration except changed frequenc y
75
80
85
90
95
100
0
8
1
6
24
3
24
0
[%]
[A]
0.6 V
1.0 V
1.8 V
3.3 V
0
2
4
6
8
0 8 16 24 32 40
[W]
[A]
0.6 V
1.0 V
1.8 V
3.3 V
75
80
85
90
95
100
0
8
1
6
24
3
24
0
[%]
[A]
0.6 V
1.0 V
1.8 V
3.3 V 0
2
4
6
8
0 8 16 24 32 40
[W]
[A]
0.6 V
1.0 V
1.8 V
3.3 V
70
75
80
85
90
95
0 8 16 24 32 40
[%]
[A]
200
kHz
320
kHz
480
kHz
640
kHz
0
2
4
6
8
0 8 16 24 32 40
[W]
[A]
200
kHz
320
kHz
480
kHz
640
kHz
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
18
Ericsson Internal
PRODUCT SPECIFICATION 16 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Typical Characteristics
Load Transient BMR 464 2002 (SIP)
Load Transient vs. Extern a l Capa citance, VO = 1.0 V L oad Transient vs. External Capacitance, VO = 3.3 V
Load transient peak voltage deviation vs. external capacitance.
Step-change (10-30-10 A). Par allel coupling of capacitors with 470 µF/10 m,
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, fsw = 320 kHz, di/dt = 2 A/µs
Load transient peak voltage deviation vs. external capacitance.
Step-change (10-30-10 A). Parallel coupling of capacitors with 470 µF/10 m,
TP1 = +25 °C, VI= 12 V, VO= 3.3 V, f sw = 320 kHz, di/dt = 2 A/µs
Load transient vs. Switch Frequency Output L oad Transien t Response, Default PID/NLR
Load transient peak voltage deviation vs. frequency.
Step-change (10-30-10 A).
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, CO = 470 µF/10 m
Output voltage response to load
current step-change (10-30-10 A) at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
di/dt = 2 A/µs, fsw = 320 kHz,
CO = 470 µF/10 m
Top trace: output voltage (200 mV/div.).
Bottom trace: load current (10 A/div.).
Time scale: (0.1 ms/div.).
Note: In the load transient graphs, the worst-case scenario (load step 30-10 A) has been
considered.
0
50
100
150
200
250
300
01234
[mV]
[mF]
Default
PID/NLR
Opt. PID, No
NLR
Default PID,
Opt. NLR
Opt. PID/NLR
0
50
100
150
200
250
300
01234
[mV]
[mF]
Default
PID/NLR
Opt. PID, No
NLR
Default PID,
Opt. NLR
Opt. PID/NLR
50
100
150
200
250
300
350
400
200 300 400 500 600
[mV]
[kHz]
Default
PID/NLR
Opt. PID,
No NLR
Default PID,
Opt. NLR
Opt.
PID/NLR
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
19
Ericsson Internal
PRODUCT SPECIFICATION 17 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Typical Characteristics
Output Current Characteristic BMR 464 2002 (SIP)
Output Current Derating, VO = 0.6 V Output Current De ra ting , VO = 1.0 V
A
vailable load current vs. ambient air temperat ure and airflow at
VO = 0.6 V, VI = 12 V. See Thermal Consideration section. Available load current vs. ambient air temperature and airflow at
VO= 1.0 V, VI = 12 V. See Thermal Consideration section.
Output Current Derating, VO = 1.8 V Output Current Derating, VO= 3.3 V
A
vailable load current vs. ambient air temperat ure and airflow at
VO = 1.8 V, VI = 12 V. See Thermal Consideration section.
A
vailable load current vs. ambient air tem per atur e and airflow at
VO = 3.3 V, VI = 12 V. See Thermal Consideration section.
Current Limit Characteristics, VO = 1.0 V Current Limit Characteristics, VO = 3.3 V
Output voltage vs. load current at TP1 = +25 °C, VO = 1.0 V.
Note: Output enters hiccup mode at current limit. Output voltage vs. load current at TP1 = +25 °C, VO = 3.3 V.
Note: Output enters hiccup mode at current limit.
0
10
20
30
40
40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0
10
20
30
40
40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0
10
20
30
40
40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0
10
20
30
40
40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0,0
0,3
0,6
0,9
1,2
40 42 44 46 48 50
[V]
[A]
4.5 V
5.0 V
12 V
14 V
VI = 12, 14 V
0,0
1,0
2,0
3,0
4,0
40 42 44 46 48 50
[V]
[A]
4.5 V
5.0 V
12 V
14 V
VI = 12, 14 V
VI = 4.5, 5. 0 V
VI = 4.5, 5.0 V
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
20
Ericsson Internal
PRODUCT SPECIFICATION 18 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Typical Characteristics
Output Voltage BMR 464 2002 (SIP)
Output Ripple & Noise, VO = 1.0 V Output Ripple & Noise, VO = 3.3 V
Output voltage ripple at: TP1 = +25 °C,
VI = 12 V, CO = 470 µF/10 m
IO = 40 A
Trace: output voltage (10 mV/div.).
Time scale: (2 µs/div.). Output voltage ripple at: TP1 = +25 °C,
VI = 12 V, CO = 470 µF/10 m
IO = 40 A
Trace: output voltage (10 mV/div.).
Time scale: (2 µs/div.).
Output Ripple vs. Input Voltage Output Ripple vs. Frequency
Output voltage ripple Vpk-pk at: TP1 = +25 °C, CO = 470 µF/10 m, IO = 40 A. Output voltage ripple Vpk-pk at : TP1 = +25 °C, VI = 12 V, CO = 470 µF/10 m,
IO = 40 A. Default configuration except changed frequency.
Output Ripple vs. External Capacitance Load regulation, VO=1.0V
Output voltage ripple Vpk-pk at: TP1 = +25 °C, VI = 12 V, IO = 40 A.
Parallel coupling of capacitors with 470 µF/10 m Load regulation at Vo = 1. 0 V at: TP1 = +25 °C, CO = 470 µF/10 m
0
10
20
30
40
50
5791113
[mVpk-pk]
[V]
0.6 V
1.0 V
1.8 V
3.3 V
0
20
40
60
80
100
200 250 300 350 400 450 500 550 600
[mVpk-pk]
[kHz]
0.6 V
1.0 V
1.8 V
3.3 V
0
10
20
30
40
50
01234
[mV]
[mF]
0.6V
1.0 V
1.8 V
3.3 V
0,990
0,995
1,000
1,005
1,010
0 8 16 24 32 40
[V]
[A]
4.5V
5 V
12 V
14 V
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
21
Ericsson Internal
PRODUCT SPECIFICATION 19 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Typical Characteristics
Start-up and shut-down BMR 464 2002 (SIP)
Start-up by input source Shut-down by input source
Start-up enabled by connecting VI at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 m, IO = 40 A
Top trace: output voltage (0.5 V/div.).
Bottom trace: input voltage (5 V/div.).
Time scale: (20 ms/div.).
Shut-down enabled by disconnecting
VI at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 m, IO = 40 A
Top trace: output voltage (0.5 V/div).
Bottom trace: input voltage (5 V/div.).
Time scale: (2 ms/div.).
Start-up by CTRL signal Shut-down by CTRL signal
Start-up by enabling CTRL signal at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 m, IO = 40 A
Top trace: output voltage (0.5 V/div.).
Bottom trace: CTRL signal (5 V/div.).
Time scale: (20 ms/div.).
Shut-down enabled by disconnecting
VI at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 m, IO = 40 A
Top trace: output voltage (0.5 V/div).
Bottom trace: CTRL signal (5 V/div.).
Time scale: (2 ms/div.).
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
22
Ericsson Internal
PRODUCT SPECIFICATION 2 (20)
Prepared (also subject responsible if other) No.
EHOSMIR 2/1301-BMR 464 0008 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-05-02 C
Electrical Specification BMR 464 0008, BMR 464 1008
TP1 = -30 to +95 °C, VI = 4.5 to 14 V, VI > VO + 1.0 V
Typical values given at: TP1 = +25 °C, VI = 12.0 V, max IO, unless otherwise specified under Conditions.
Default configuration file, 190 10-CDA 102 0498/001.
External CIN = 470 µF/10 m, COUT = 470 µF/10 m . See Operating Information section for selection of capacitor types.
Sense pins are connected to the output pins.
Characteristics Conditions min typ max Unit
VI Input voltage rise time monotonic 2.4 V/ms
VO
Output voltage without pin strap 1.2 V
Output voltage adjustment range 0.60 3.3 V
Output voltage adjustment including
margining See Note 17 0.54 3.63 V
Output voltage set-point resolution ±0.025 % FS
Output voltage accuracy
Including line, load, temp.
See Note 14 -1 1 %
Current sharing operation
See Note 15 -2 2 %
Internal resistance +S/-S to VOUT/GND 47
Line regulation
VO = 0.6 V 2
mV
VO = 1.0 V 2
VO = 1.8 V 2
VO = 3.3 V 3
Load regulation; IO = 0 - 100%
VO = 0.6 V 2
mV
VO = 1.0 V 2
VO = 1.8 V 2
VO = 3.3 V 2
VOac Output ripple & noise
CO = 470 F (minimum external
capacitance). See Note 11
VO = 0.6 V 20
mVp-p
VO = 1.0 V 25
VO = 1.8 V 30
VO = 3.3 V 35
IO Output current See Note 18 0.001 50 A
IS Static input current at max IO
VO = 0.6 V 3.10
A
VO = 1.0 V 4.80
VO = 1.8 V 8.19
VO = 3.3 V 14.53
Ilim Current limit threshold 52 65 A
Isc Short circu it
current RMS, hicc up mode ,
See Note 3
VO = 0.6 V 11
A
VO = 1.0 V 9
VO = 1.8 V 7
VO = 3.3 V 6
Efficiency
50% of max IO
VO = 0.6 V 85.6
%
VO = 1.0 V 90.4
VO = 1.8 V 93.7
VO = 3.3 V 95.7
max IO
VO = 0.6 V 80.5
%
VO = 1.0 V 86.9
VO = 1.8 V 91.6
VO = 3.3 V 94.6
Pd Powe r diss ipation at max IO
VO = 0.6 V 7.25
W
VO = 1.0 V 7.54
VO = 1.8 V 8.28
VO = 3.3 V 9.36
Pli Input idling
power
(no load)
Default configuration:
Continues Conduction
Mode, CCM
VO = 0.6 V 0.90
W
VO = 1.0 V 0.90
VO = 1.8 V 1.10
VO = 3.3 V 1.67
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
23
Ericsson Internal
PRODUCT SPECIFICATION 3 (20)
Prepared (also subject responsible if other) No.
EHOSMIR 2/1301-BMR 464 0008 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-05-02 C
Characteristics Conditions min typ max Unit
PCTRL Input standby
power Turned off with
CTRL-pin
Default configuration:
Monitoring enabled,
Precise timi ng enabled 170
mW
Ci Internal input capacitance 140 F
Co Internal output capacitance 400 F
COUT Total external output capacitance See Note 9 470 30 000 F
ESR range of capacitors
(per single capacitor) See Note 9 5 30 m
Vtr1
Load transient
peak voltage
deviation
(L to H/H to L)
Load step
25-75-25% of
max IO
Default configuration
di/dt = 2 A/s
CO = 470 F (minimum
external capa citanc e)
see Note 12
VO = 0.6 V 79 / 256
mV
VO = 1.0 V 127 / 298
VO = 1.8 V 144 / 324
VO = 3.3 V 210 / 327
ttr1
Load transient
recovery time,
Note 5
(L to H/H to L)
Load step
25-75-25% of
max IO
Default configuration
di/dt = 2 A/s
CO = 470 F (minimum
external capa citanc e)
see Note 12
VO = 0.6 V 60 / 100
s
VO = 1.0 V 100 / 100
VO = 1.8 V 100 / 100
VO = 3.3 V 100 / 100
fs Switching frequency 320 kHz
Switching frequency range PMBus configurable 200-640 kHz
Switching frequency set-point accuracy -5 5 %
Control Circuit PWM Duty Cycle 5 95 %
Minimum Sync Pulse Width 150 ns
Input Clock Frequency Drift Tolerance External clock source -13 13 %
Input Under Voltage
Lockout,
UVLO
UVLO threshold 3.85 V
UVLO threshold range PMBus configurable 3.85-14 V
Set point accuracy -150 150 mV
UVLO hysteresis 0.35 V
UVLO hysteresis range PMBus configurable 0-10.15 V
Delay 2.5 s
Fault response See Note 3 Automatic restart, 70 ms
Input Over Voltage
Protection,
IOVP
IOVP threshold 16 V
IOVP threshold range PMBus configurable 4.2-16 V
Set point accuracy -150 150 mV
IOVP hysteresis 1 V
IOVP hysteresis range PMBus configurable 0-11.8 V
Delay 2.5 s
Fault response See Note 3 Automatic restart, 70 ms
Power Good, PG,
See Note 2
PG threshold 90 % VO
PG hysteresis 5 % VO
PG delay See Note 19 Direct after DLC
PG delay range PMBus configurable 0-500 s
Output vol tag e
Over/Under Voltage
Protection,
OVP/UVP
UVP threshold 85 % VO
UVP threshold range PMBus configurable 0-100 % VO
UVP hysteresis 5 % VO
OVP threshold 115 % VO
OVP threshold range PMBus configurable 100-115 % VO
UVP/OVP response time 25 s
UVP/OVP
response time range PMBus configurable 5-60 s
Fault response See Note 3 Automatic restart, 70 ms
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
24
Ericsson Internal
PRODUCT SPECIFICATION 4 (20)
Prepared (also subject responsible if other) No.
EHOSMIR 2/1301-BMR 464 0008 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-05-02 C
Characteristics Conditions min typ max Unit
Over Current
Protection,
OCP
OCP threshold 62 A
OCP threshold range PMBus configurable 0-62 A
Protection delay, See Note 4 32 Tsw
Protection delay range PMBus configurable 1-32 Tsw
Fault response See Note 3 Automatic restart, 70 ms
Over Temperature
Protection,
OTP at P2
See Note 8
OTP threshold 120 C
OTP threshold range PMBus configurable -40…+125 C
OTP hysteresis 25 C
OTP hysteresis range PMBus configurable 0-165 C
Fault response See Note 3 Automatic restart, 240 ms
VIL Logic input low threshold SYNC, SA0, SA1, SCL , SDA,
GCB, CTRL, VSET 0.8 V
VIH Logic input high threshold 2 V
IIL Logic input low sink current CTRL 0.6 mA
VOL Logic output low signal level SYNC, SCL, SDA, S ALERT,
GCB, PG
0.4 V
VOH Logic output high signal level 2.25 V
IOL Logic output low sink current 4 mA
IOH Logic output high source current 2 mA
tset Setup time, SMBus See Note 1 300 ns
thold Hold time, SMBus See Note 1 250 ns
tfree Bus free time, SMBus See Note 1 2 ms
C
p
Internal capacitance on logic pins 10 pF
Initialization time See Note 10 40 ms
Output Voltage
Delay Time
See Note 6
Delay duration See Note 16 10 ms
Delay duration range PMBus configurable 5-500000
Delay accuracy
turn-on -0.25/+4 ms
Delay accuracy
turn-off -0.25/+4 ms
Output Voltage
Ramp Time
See Note 13
Ramp duration 10 ms
Ramp duration range PMBus configurable 0-200
Ramp time accuracy 100 µs
Current sharing operation 20 %
VTRK Input Bias Current VVTRK = 5.5 V 110 200 µA
VTRK Tracking Ramp Accuracy (VO - VVTRK)
100% tracking, see Note 7 -100 100 mV
Current sharing operation
2 phases, 100% tracking
VO = 1.0 V, 10 ms ramp ±100 mV
VTRK Regulation Accuracy (VO - VVTRK) 100% Tracking -1 1 %
Current sharing operation
100% Tracking -2 2 %
Current difference be tween products in a current
sharing gro up Steady state operation Max 2 x READ_IOUT monitoring accuracy
Ramp-up 4 A
Number of products in a current sharing group 7
Monitoring accuracy
READ_VI N vs VI 3 %
READ_VOU T vs VO 1 %
READ_IO UT vs IO IO = 0-50 A, TP1 = 0 to +95 °C
VI = 4.5-14 V, VO = 1.0 V ±3.0 A
READ_IO UT vs IO IO = 0-50 A, TP1 = 0 to +95 °C
VI = 4.5-14 V, VO = 0.6-3.3 V ±5.0 A
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
25
Ericsson Internal
PRODUCT SPECIFICATION 5 (20)
Prepared (also subject responsible if other) No.
EHOSMIR 2/1301-BMR 464 0008 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-05-02 C
Note 1: See section I2C/SMBus Setup and Hold Times – Definitions.
Note 2: Monitorable over PMBus Interface.
Note 3: Automatic restart ~70 or 240 ms after fault if the fault is no longer present. Continuous restart attempts if the fault reappear after restart. See Operati ng Information and AN302 f or
other fault response options.
Note 4: Tsw is the switching period.
Note 5: Within +/-3% of VO
Note 6: See section Soft-start Power Up.
Note 7: Tracking functionality is designed to follow a VTRK signal with slew rate < 2.4 V/ms. For faster VTRK signals accuracy will depend on the regulator bandwidth.
Note 8: See section Over Temperature Protection (OTP).
Note 9: See section External Capacitors.
Note 10: See section Initialization Procedure.
Note 11: See graph Output Ripple vs External Capacitance and Operating information section Output Ripple and Noise.
Note 12: See graph Load Transient vs. External Capacitance and Operating information section External Capacitors.
Note 13: Time for reaching 100% of nominal Vout.
Note 14: For Vout < 1.0 V accuracy is +/-10 mV. For further deviations see section Output Voltage Adjust using PMBus.
Note 15: Accuracy here means deviation from ideal output voltage level given by configured droop and actual load. Includes line, load and temperature variations.
Note 16: For current sharing the Output Voltage Delay Time must be reconfigured to minimum 15 ms, see AN307 for details.
Note 17: For steady state operation above 1.05 x 3.3 V, please contact your local Ericsson sales representative.
Note 18: A minimum load current is not required if Low Power mode is used (monitoring disabled).
Note 19: See sections Dynamic Loop Compensation and Power Good.
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
26
Ericsson Internal
PRODUCT SPECIFICATION 6 (20)
Prepared (also subject responsible if other) No.
EHOSMIR 2/1301-BMR 464 0008 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-05-02 C
Typical Characteristics
Efficiency and Power Dissipation BMR 464 0008, BMR 464 1008
Efficiency vs. Output Current, VI = 5 V Power Dissipation vs. Output Current, VI = 5 V
Efficiency vs. load current and output voltage:
TP1 = +25 °C, VI = 5 V, fsw = 320 kHz, CO = 470 µF/10 m. Dissipated power vs. load current and output voltage:
TP1 = +25 °C, VI= 5 V, fsw = 320 kHz, CO= 470 µF/10 m.
Efficiency vs. Ou tput Current, VI = 12 V Power Dissipation vs. Output Current, VI = 12 V
Efficiency vs. load current and output voltage at
TP1 = +25 °C, VI = 12 V, fsw = 320 kHz, CO = 470 µF/10 m. Dissipated power vs. load current and output voltage:
TP1 = +25 °C, VI= 12 V, fsw = 320 kHz, CO = 470 µF/10 m.
Efficiency vs. Output Current and
Switching Frequency Power Dissipation vs. Output Current and
Switch in g freq u e nc y
Efficiency vs. load current and switch frequency at
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, CO = 470 µF/10 m.
Default configuration except changed frequency
Dissipated power vs. load current and switch frequency at
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, CO = 470 µF/10 m.
Default configuration except changed frequenc y
75
80
85
90
95
100
0 1020304050
[%]
[A]
0.6 V
1.0 V
1.8 V
3.3 V
0
2
4
6
8
10
12
0 1020304050
[W]
[A]
0.6 V
1.0 V
1.8 V
3.3 V
75
80
85
90
95
100
0 1020304050
[%]
[
A
]
0.6 V
1.0 V
1.8 V
3.3 V
0
2
4
6
8
10
12
0 1020304050
[W]
[
A
]
0.6 V
1.0 V
1.8 V
3.3 V
70
75
80
85
90
95
0 1020304050
[%]
[
A
]
200
kHz
320
kHz
480
kHz
640
kHz
0
2
4
6
8
10
12
0 1020304050
[W]
[
A
]
200
kHz
320
kHz
480
kHz
640
kHz
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
27
Ericsson Internal
PRODUCT SPECIFICATION 7 (20)
Prepared (also subject responsible if other) No.
EHOSMIR 2/1301-BMR 464 0008 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-05-02 C
Typical Characteristics
Load Transient BMR 464 0008, BMR 464 1008
Load Transient vs. Exte rn a l Capa citance, VO = 1.0 V Load Transient vs. External Capacitance, VO = 3.3 V
Load transient peak voltage deviation vs. external capacitance.
Step (12.5-37.5-12.5 A). Parallel coupl ing of capacitors with 470 µF/10 m,
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, fsw = 320 kHz, di/dt = 2 A/µs
Load transient peak voltage deviation vs. external capacitance.
Step (12.5-37.5-12.5 A). Parallel coupling of capacitors with 470 µF/10 m,
TP1 = +25 °C, VI
= 12 V, VO= 3.3 V, fsw = 320 kHz, di/dt = 2 A/µs
Load transient vs. Switch Frequency Output Load Transient Response, Default Configuration
Load transient peak voltage deviation vs. frequency.
Step-change (12.5-37.5- 12.5 A).
TP1 = +25 °C. VI = 12 V, VO = 1.0 V, CO = 470 µF/10 m
Output voltage response to load current
Step-change (12.5-37.5-12.5 A) at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
di/dt = 2 A/µs, fsw = 320 kHz
CO= 470 µF/10 m
Top trace: output voltage (200
mV/div.).
Bottom trace: load current (10
A/div.).
Time scale: (0.1 ms/div.).
Note 1: For Universal PID, see section Dynamic Loop Compensation (DLC).
Note 2: In the load transient graphs, the worst-case scenario (load step 37.5-12.5 A) has been
considered.
0
100
200
300
400
500
012345
[mV]
[mF]
Universal PID,
No NLR
DLC,
No NLR
Universal PID,
Default NLR
DLC,
Default NLR
Universal PID,
Opt. NLR
DLC,
Opt. NLR 0
100
200
300
400
500
012345
[mV]
[mF]
Universal PID,
No NLR
DLC,
No NLR
Universal PID,
Default NLR
DLC,
Default NLR
Universal PID,
Opt. NLR
DLC,
Opt. NLR
0
100
200
300
400
500
600
200 300 400 500 600
[mV]
[kHz]
Universal PID,
No NLR
DLC,
No NLR
Universal PID,
Default NLR
DLC,
Default NLR
Universal PID,
Opt. NLR
DLC,
Opt. NLR
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
28
Ericsson Internal
PRODUCT SPECIFICATION 8 (20)
Prepared (also subject responsible if other) No.
EHOSMIR 2/1301-BMR 464 0008 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-05-02 C
Typical Characteristics
Output Current Characteristic BMR 464 0008, BMR 464 1008
Output Current Derating, VO = 0.6 V Output Current De ra ting , VO = 1.0 V
A
vailable load current vs. ambient air temperat ure and airflow at
VO = 0.6 V, VI = 12 V. See Thermal Consideration section. Available load current vs. ambient air temperature and airflow at
VO= 1.0 V, VI = 12 V. See Thermal Consideration section.
Output Current Derating, VO = 1.8 V Output Current Derating, VO= 3.3 V
A
vailable load current vs. ambient air temperat ure and airflow at
VO = 1.8 V, VI = 12 V. See Thermal Consideration section.
A
vailable load current vs. ambient air tem per atur e and airflow at
VO = 3.3 V, VI = 12 V. See Thermal Consideration section.
Current Limit Characteristics, VO = 1.0 V Current Limit Characteristics, VO = 3.3 V
Output voltage vs. load current at TP1 = +25 °C, VO = 1.0 V.
Note: Output enters hiccup mode at current limit. Output volta ge vs. load current at TP1 = +25 °C, VO = 3.3 V.
Note: Output enters hiccup mode at current limit.
0
10
20
30
40
50
20 40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0
10
20
30
40
50
20 40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0
10
20
30
40
50
20 40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0
10
20
30
40
50
20 40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0,0
0,3
0,6
0,9
1,2
50 55 60 65
[V]
[A]
4.5 V
5.0 V
12 V
14 V
VI = 5.0, 12 V
VI = 4.5,14 V
0,0
1,0
2,0
3,0
4,0
50 55 60 65
[V]
[A]
4.5 V
5.0 V
12 V
14 V
VI = 12, 14 V
VI = 4.5, 5 .0V
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
29
Ericsson Internal
PRODUCT SPECIFICATION 9 (20)
Prepared (also subject responsible if other) No.
EHOSMIR 2/1301-BMR 464 0008 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-05-02 C
Typical Characteristics
Output Voltage BMR 464 0008, BMR 464 1008
Output Ripple & Noise, VO = 1.0 V Output Ripple & Noise, VO = 3.3 V
Output voltage ripple at: TP1 = +25 °C,
VI = 12 V, CO = 470 µF/10 m
IO = 50 A
Trace: output voltage (10 mV/div.).
Time scale: (2 µs/div.). Output voltage ripple at: TP1 = +25 °C,
VI = 12 V, CO = 470 µF/10 m
IO = 50 A
Trace: output voltage (10 mV/div.).
Time scale: (2 µs/div.).
Output Ripple vs. Input Voltage Output Ripple vs. Frequency
Output voltage ripple Vpk-pk at: TP1 = +25 °C, CO = 470 µF/10 m, IO = 50 A Output voltage ripple Vpk-pk at: TP1 = +25 °C, VI = 12 V, CO = 470 µF/10 m,
IO = 50 A. Default configuration except changed frequency.
Output Ripple vs. External Capacitance Load regulation,
V
O =1.0
V
Output voltage ripple Vpk-pk at: TP1 = +25 °C, VI = 12 V. IO = 50 A.
Parallel coupling of capacitors with 470 µF/10 m Load regulation at VO = 1.0 V, TP1 = +25 °C, CO = 470 µF/10 m
0
10
20
30
40
5791113
[mVpk-pk]
[V]
0.6 V
1.0 V
1.8 V
3.3 V
0
10
20
30
40
50
60
70
200 300 400 500 600
[mVpk-pk]
[kHz]
0.6 V
1.0 V
1.8 V
3.3 V
0
10
20
30
40
012345
[mV]
[mF]
0.6 V
1.0 V
1.8 V
3.3 V
0,990
0,995
1,000
1,005
1,010
0 5 10 15 20 25
[V]
[A]
4.5 V
5.0 V
12 V
14 V
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
30
Ericsson Internal
PRODUCT SPECIFICATION 10 (20)
Prepared (also subject responsible if other) No.
EHOSMIR 2/1301-BMR 464 0008 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-05-02 C
Typical Characteristics
Start-up and shut-down BMR 464 0008, BMR 464 1008
Start-up by inpu t sour ce Shut-do wn by input sour ce
Start-up enabled by connecting VI at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 m, IO = 50 A
Top trace: output voltage (0.5 V/div.).
Bottom trace: input voltage (5 V/div.).
Time scale: (20 ms/div.).
Shut-down enabled by disconnecting
VI at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 m, IO = 50 A
Top trace: output voltage (0.5 V/div.).
Bottom trace: input voltage (5 V/div.).
Time scale: (2 ms/div.).
Start-up by CTRL signal Shut-down by CTRL signal
Start-up by enabling CTRL signal at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 m, IO = 50 A
Top trace: output voltage (0.5 V/div.).
Bottom trace: CTRL signal (2 V/div.).
Time scale: (20 ms/div.).
Shut-down enabled by disconnecting
VI at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 m, IO = 50 A
Top trace: output voltage (0.5 V/div).
Bottom trace: CTRL signal (2 V/div.).
Time scale: (2 ms/div.).
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
31
Ericsson Internal
PRODUCT SPECIFICATION 11 (20)
Prepared (also subject responsible if other) No.
EHOSMIR 2/1301-BMR 464 0008 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-05-02 C
Electrical Specification BMR 464 2008 (SIP)
TP1 = -30 to +95 °C, VI = 4.5 to 14 V, VI > VO + 1.0 V
Typical values given at: TP1 = +25 °C, VI = 12.0 V, max IO, unless otherwise specified under Conditions.
Default configuration file, 190 10-CDA 102 0499/001.
External CIN = 470 µF/10 m, COUT = 470 µF/10 m. See Operating Information section for selection of capacitor types.
Sense pins are connected to the output pins.
Characteristics Conditions min typ max Unit
VI Input voltage ris e time monotonic 2.4 V/ms
VO
Output voltage without pin strap 1.2 V
Output voltage adjustment range 0.60 3.3 V
Output voltage adjustment including
margining See Note 17 0.54 3.63 V
Output voltage set-point resolution ±0.025 % FS
Output voltage accuracy
Including line, load, temp.
See Note 14 -1 1 %
Current sharing operation
See Note 15 -2 2 %
Internal resistance +S/-S to VOUT/GND 47
Line regulation
VO = 0.6 V 2
mV
VO = 1.0 V 2
VO = 1.8 V 2
VO = 3.3 V 3
Load regulation; IO = 0 - 100%
VO = 0.6 V 2
mV
VO = 1.0 V 2
VO = 1.8 V 2
VO = 3.3 V 2
VOac Output ripple & noise
CO = 470 F (minimum external
capacitance). See Note 11
VO = 0.6 V 20
mVp-p
VO = 1.0 V 25
VO = 1.8 V 30
VO = 3.3 V 40
IO Output current See Note 18 0.001 50 A
IS Static input current at max IO
VO = 0.6 V 3.12
A
VO = 1.0 V 4.81
VO = 1.8 V 8.22
VO = 3.3 V 14.59
Ilim Current limit threshold 52 65 A
Isc Short circuit
current RMS, hicc up mode ,
See Note 3
VO = 0.6 V 10
A
VO = 1.0 V 8
VO = 1.8 V 6
VO = 3.3 V 5
Efficiency
50% of max I O
VO = 0.6 V 85.2
%
VO = 1.0 V 90.2
VO = 1.8 V 93.3
VO = 3.3 V 95.3
max IO
VO = 0.6 V 80.2
%
VO = 1.0 V 86.6
VO = 1.8 V 91.2
VO = 3.3 V 94.2
Pd Power dissipation at max IO
VO = 0.6 V 7.40
W
VO = 1.0 V 7.73
VO = 1.8 V 8.68
VO = 3.3 V 10.15
Pli Input idling
power
(no load)
Default configuration:
Continues Conduction
Mode, CCM
VO = 0.6 V 0.95
W
VO = 1.0 V 0.95
VO = 1.8 V 1.22
VO = 3.3 V 1.88
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
32
Ericsson Internal
PRODUCT SPECIFICATION 12 (20)
Prepared (also subject responsible if other) No.
EHOSMIR 2/1301-BMR 464 0008 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-05-02 C
Characteristics Conditions min typ max Unit
PCTRL Input standby
power Turned off with
CTRL-pin
Default configuration:
Monitoring enabled,
Precise timing enabled 170
mW
Ci Internal input capacitance 140 F
Co Internal output capacitance 400 F
COUT Total external output capacitance See Note 9 470 30 000 F
ESR range of capacitors
(per single capacitor) See Note 9 5 30 m
Vtr1
Load transient
peak volta ge
deviation
(L to H/H to L)
Load step
25-75-25% of
max IO
Default configuration
di/dt = 2 A/s
CO = 470 F (minimum
external capacitance )
see Note 12
VO = 0.6 V 90 / 300
mV
VO = 1.0 V 120 / 300
VO = 1.8 V 160 / 305
VO = 3.3 V 230 / 315
ttr1
Load transient
recovery time,
Note 5
(L to H/H to L)
Load step
25-75-25% of
max IO
Default configuration
di/dt = 2 A/s
CO = 470 F (minimum
external capacitance )
see Note 12
VO = 0.6 V 70 / 100
s
VO = 1.0 V 100 / 100
VO = 1.8 V 100 / 100
VO = 3.3 V 100 / 100
fs Switching frequency 320 kHz
Switching frequency range PMBus configurable 200-640 kHz
Switching frequency set-point accuracy -5 5 %
Control Cir cuit PWM Duty Cycle 5 95 %
Minimum Sync Pulse Width 150 ns
Input Clock Frequency Drift Tolerance External clock source -13 13 %
Input Under Voltage
Lockout,
UVLO
UVLO threshold 3.85 V
UVLO threshold range PMBus configurable 3.85-14 V
Set point accuracy -150 150 mV
UVLO hysteresis 0.35 V
UVLO hysteresis range PMBus configurable 0-10.15 V
Delay 2.5 s
Fault response See Note 3 Automatic restart, 70 ms
Input Over Voltage
Protection,
IOVP
IOVP threshold 16 V
IOVP threshold range PMBus configurable 4.2-16 V
Set point accuracy -150 150 mV
IOVP h ysteresis 1 V
IOVP h ysteresis range PMBus conf igurable 0-11.8 V
Delay 2.5 s
Fault response See Note 3 Automatic restart, 70 ms
Power Good, PG,
See Note 2
PG thre shold 90 % VO
PG hysteresis 5 % VO
PG delay See Note 19 Direct after DLC ms
PG delay range PMBus configurable 0-500 s
Output voltage
Over/Under Voltage
Protection,
OVP/UVP
UVP threshold 85 % VO
UVP threshold range PMBus configurable 0-100 % VO
UVP hysteresis 5 % VO
OVP threshold 115 % VO
OVP threshold range PMBus configurable 100-115 % VO
UVP/OVP response time 25 s
UVP/OVP
response time range PMBus configurable 5-60 s
Fault response See Note 3 Automatic restart, 70 ms
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
33
Ericsson Internal
PRODUCT SPECIFICATION 13 (20)
Prepared (also subject responsible if other) No.
EHOSMIR 2/1301-BMR 464 0008 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-05-02 C
Characteristics Conditions min typ max Unit
Over Current
Protection,
OCP
OCP thres hold 60 A
OCP threshold range PMBus configurable 0-60 A
Protection delay, See Note 4 32 Tsw
Protection delay range PMBus configurable 1-32 Tsw
Fault response See Note 3 Automatic restart, 70 ms
Over Temperature
Protection,
OTP at P2
See Note 8
OTP threshold 120 C
OTP threshold range PMBus configurable -40…+125 C
OTP hysteresis 25 C
OTP hysteresis range PMBus configurable 0-165 C
Fault response See Note 3 Automatic restart, 240 ms
VIL Logic input low threshold SYNC, SA0, SA1, SCL, SDA,
GCB, CTRL, VSET 0.8 V
VIH Logic input high threshold 2 V
IIL Logic input low sink current CTRL 0.6 mA
VOL Logic output low signal level SYNC, SC L, SD A, SALERT,
GCB, PG
0.4 V
VOH Logic output high signal level 2.25 V
IOL Logic output low sink current 4 mA
IOH Logic output high source current 2 mA
tset Setup time, SMBus See Note 1 300 ns
thold Hold time, SMBus See Note 1 250 ns
tfree Bus free time, SMBus See Note 1 2 ms
C
p
Internal capacitance on logic pins 10 pF
Initialization time See Note 10 40 ms
Output Voltage
Delay Time
See Note 6
Delay duration See Note 16 10 ms
Delay duration range PMBus configurable 5-500000
Delay accuracy
turn-on -0.25/+4 ms
Delay accuracy
turn-off -0.25/+4 ms
Output Voltage
Ramp Time
See Note 13
Ramp duration 10 ms
Ramp duration range PMBus configurable 0-200
Ramp time accuracy 100 µs
Current sharing operation 20 %
VTRK Input Bias Current VVTRK = 5.5 V 110 200 µA
VTRK Tracking Ramp Accuracy (VO - VVTRK)
100% tracking, see Note 7 -100 100 mV
Current sharing operation
2 phases, 100% tracking
VO = 1.0 V, 10 ms ramp ±100 mV
VTRK Regulation Accuracy (VO - VVTRK) 100% Tracking -1 1 %
Current sharing operation
100% Tracking -2 2 %
Current difference between products in a current
sharing group Steady state operation Max 2 x READ_IOUT monitoring accuracy
Ramp-up 4 A
Number of products in a current sharing group 7
Monitoring accuracy
READ_VIN vs VI 3 %
READ_VOUT vs VO 1 %
READ_IOUT vs IO IO = 0-50 A, TP1 = 0 to +95 °C
VI = 4.5-14 V, VO = 1.0 V ±3.0 A
READ_IOUT vs IO IO = 0-50 A, TP1 = 0 to +95 °C
VI = 4.5-14 V, VO = 0.6-3.3 V ±5.0 A
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
34
Ericsson Internal
PRODUCT SPECIFICATION 14 (20)
Prepared (also subject responsible if other) No.
EHOSMIR 2/1301-BMR 464 0008 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-05-02 C
Note 1: See section I2C/SMBus Setup and Hold Times – Definitions.
Note 2: Monitorable over PMBus Interface.
Note 3: Automatic restart ~70 or 240 ms after fault if the fault is no longer present. Continuous restart attempts if the fault reappear after restart. See Operating Information and AN302 for
other fault response options.
Note 4: Tsw is the switching period.
Note 5: Within +/-3% of VO
Note 6: See section Soft-start Power Up.
Note 7: Tracking functionality is designed to follow a VTRK signal with slew rate < 2.4 V/ms. For faster VTRK signals accuracy will depend on the regulator bandwidth.
Note 8: See section Over Temperature Protection (OTP).
Note 9: See section External Capacitors.
Note 10: See section Initialization Procedure.
Note 11: See graph Output Ripple vs External Capacitance and Operating information section Output Ripple and Noise.
Note 12: See graph Load Transient vs. External Capacitance and Operating information section External Capacitors.
Note 13: Time for reaching 100% of nominal Vout.
Note 14: For Vout < 1.0 V accuracy is +/-10 mV. For further deviations see section Output Voltage Adjust using PMBus.
Note 15: Accuracy here means deviation from ideal output voltage level given by configured droop and actual load. Includes line, load and temperature variations.
Note 16: For current sharing the Output Voltage Delay Time must be reconfigured to minimum 15 ms, see AN307 for details.
Note 17: For steady state operation above 1.05 x 3.3 V, please contact your local Ericsson sales representative.
Note 18: A minimum load current is not required if Low Power mode is used (monitoring disabled).
Note 19: See sections Dynamic Loop Compensation and Power Good.
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
35
Ericsson Internal
PRODUCT SPECIFICATION 15 (20)
Prepared (also subject responsible if other) No.
EHOSMIR 2/1301-BMR 464 0008 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-05-02 C
Typical Characteristics
Efficiency and Power Dissipation BMR 464 2008 (SIP)
Efficiency vs. Output Current, VI = 5 V Power Dissipation vs. Output Current, VI = 5 V
Efficiency vs. load current and output voltage:
TP1 = +25 °C, VI = 5 V, fsw = 320 kHz, CO = 470 µF/10 m. Dissipated power vs. load current and output voltage:
TP1 = +25 °C, VI= 5 V, fsw = 320 kHz, CO= 470 µF/10 m.
Efficiency vs. Output Current, VI = 12 V Power Dissipation vs. Output Current, VI = 12 V
Efficiency vs. load current and output voltage at
TP1 = +25 °C, VI=12 V, fsw = 320 kHz, CO = 470 µF/10 m. Dissipated power vs. load current and output voltage:
TP1 = +25 °C, VI=12 V, fsw = 320 kHz, CO= 470 µF/10 m.
Efficiency vs. Output Current and
Switching Frequency Power Dissipation vs. Output Current and
Switch in g freq u e nc y
Efficiency vs. load current and switch frequency at
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, CO = 470 µF/10 m.
Default configuration except changed frequency
Dissipated power vs. load current and switch frequency at
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, CO = 470 µF/10 m.
Default configuration except changed frequenc y
75
80
85
90
95
100
0 1020304050
[%]
[A]
0.6 V
1.0 V
1.8 V
3.3 V
0
2
4
6
8
10
12
0 1020304050
[W]
[
A
]
0.6 V
1.0 V
1.8 V
3.3 V
75
80
85
90
95
100
0 1020304050
[%]
[
A
]
0.6 V
1.0 V
1.8 V
3.3 V
0
2
4
6
8
10
12
0 1020304050
[W]
[
A
]
0.6 V
1.0 V
1.8 V
3.3 V
70
75
80
85
90
95
0 1020304050
[%]
[
A
]
200
kHz
320
kHz
480
kHz
640
kHz
0
2
4
6
8
10
12
0 1020304050
[W]
[
A
]
200
kHz
320
kHz
480
kHz
640
kHz
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
36
Ericsson Internal
PRODUCT SPECIFICATION 16 (20)
Prepared (also subject responsible if other) No.
EHOSMIR 2/1301-BMR 464 0008 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-05-02 C
Typical Characteristics
Load Transient BMR 464 2008 (SIP )
Load Transient vs. Extern a l Capa citance, VO = 1.0 V L oad Transient vs. External Capacitance, VO = 3.3 V
Load transient peak voltage deviation vs. external capacitance.
Step (12.5-37.5-12.5 A). Parallel coupling of capacitors with 470 µF/10 m,
TP1 = +25 °C. VI = 12 V, VO = 1.0 V, fsw = 320 kHz, di/dt = 2 A/µs
Load transient peak voltage deviation vs. external capacitance.
Step (12.5-37.5-12.5 A). Parallel coupling of capacitors with 470 µF/10 m,
TP1 = +25 °C. VI= 12 V, VO= 3.3 V, f sw = 320 kHz, di/dt = 2 A/µs
Load transient vs. Switch Frequency Output Load Transient Response, Default Configuration
Load transient peak voltage deviation vs. frequency.
Step-change (12.5-37.5- 12.5 A).
TP1 = +25 °C. VI = 12 V, VO = 1.0 V, CO = 470 µF/10 m
Output voltage response to load
Step-change (12.5-37.5-12.5 A) at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
di/dt = 2 A/µs, fsw = 320 kHz
CO = 470 µF/10 m
Top trace: output voltage (200 mV/div.).
Bottom trace: load current (10 A/div.).
Time scale: (0.1 ms/div.).
Note 1: For Universal PID, see section Dynamic Loop Compensation (DLC).
Note 2: In these graphs, the worst-case scenario (load step 37.5-12.5 A) has been considered.
0
100
200
300
400
500
012345
[mV]
[mF]
Universal PID,
No NLR
DLC,
No NLR
Universal PID,
Default NLR
DLC,
Default NLR
Universal PID,
Opt. NLR
DLC,
Opt. NLR 0
100
200
300
400
500
012345
[mV]
[mF]
Universal PID,
No NLR
DLC,
No NLR
Universal PID,
Default NLR
DLC,
Default NLR
Universal PID,
Opt. NLR
DLC,
Opt. NLR
0
100
200
300
400
500
600
200 300 400 500 600
[mV]
[kHz]
Universal PID,
No NLR
DLC,
No NLR
Universal PID,
Default NLR
DLC,
Default NLR
Universal PID,
Opt. NLR
DLC,
Opt. NLR
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
37
Ericsson Internal
PRODUCT SPECIFICATION 17 (20)
Prepared (also subject responsible if other) No.
EHOSMIR 2/1301-BMR 464 0008 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-05-02 C
Typical Characteristics
Output Current Characteristic BMR 464 2008 (SIP)
Output Current Derating, VO = 0.6 V Output Current De ra ting , VO = 1.0 V
A
vailable load current vs. ambient air temperat ure and airflow at
VO = 0.6 V, VI = 12 V. See Thermal Consideration section. Available load current vs. ambient air temperature and airflow at
VO= 1.0 V, VI = 12 V. See Thermal Consideration section.
Output Current Derating, VO = 1.8 V Output Current Derating, VO= 3.3 V
A
vailable load current vs. ambient air temperat ure and airflow at
VO = 1.8 V, VI = 12 V. See Thermal Consideration section.
A
vailable load current vs. ambient air tem per atur e and airflow at
VO = 3.3 V, VI = 12 V. See Thermal Consideration section.
Current Limit Characteristics, VO = 1.0 V Current Limit Characteristics, VO = 3.3 V
Output voltage vs. load current at TP1 = +25 °C, VO = 1.0 V.
Note: Output enters hiccup mode at current limit. Output volta ge vs. load current at TP1 = +25 °C, VO = 3.3 V.
Note: Output enters hiccup mode at current limit.
0
10
20
30
40
50
20 40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0
10
20
30
40
50
20 40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0
10
20
30
40
50
20 40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0
10
20
30
40
50
20 40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0,0
0,3
0,6
0,9
1,2
50 55 60 65
[V]
[A]
4.5 V
5.0 V
12 V
14 V
VI =12, 14V
VI = 4.5, 5.0 V
0,0
1,0
2,0
3,0
4,0
50 55 60 65
[V]
[A]
4.5 V
5.0 V
12 V
14 V
VI = 4.5, 14 V VI = 5.0, 12 V
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
38
Ericsson Internal
PRODUCT SPECIFICATION 18 (20)
Prepared (also subject responsible if other) No.
EHOSMIR 2/1301-BMR 464 0008 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-05-02 C
Typical Characteristics
Output Voltage BMR 464 2008 (SIP)
Output Ripple & Noise, VO = 1.0 V Output Ripple & Noise, VO = 3.3 V
Output voltage ripple at: TP1 = +25 °C,
VI = 12 V, CO = 470 µF/10 m
IO = 50 A
Trace: output voltage (10 mV/div.).
Time scale: (2 µs/div.). Output voltage ripple at: TP1 = +25 °C,
VI = 12 V, CO = 470 µF/10 m
IO = 50 A
Trace: output voltage (10 mV/div.).
Time scale: (2 µs/div.).
Output Ripple vs. Input Voltage Output Ripple vs. Frequency
Output voltage ripple Vpk-pk at: TP1 = +25 °C, CO = 470 µF/10 m, IO = 50 A. Output voltage ripple Vpk-pk at: TP1 = +25 °C, VI = 12 V, CO = 470 µF/10 m,
IO = 50 A. Default configuration except changed frequency.
Output Ripple vs. External Capacitance Load regulation, VO = 1.0 V
Output voltage ripple Vpk-pk at: TP1 = +25 °C, VI = 12 V, IO = 50 A.
Parallel coupling of capacitors with 470 µF/10 m Load regulation at VO = 1.0 V, TP1 = +25 °C, CO = 470 µF/10 m
0
10
20
30
40
5791113
[mVpk-pk]
[V]
0.6 V
1.0 V
1.8 V
3.3 V
0
10
20
30
40
50
60
70
200 300 400 500 600
[mVpk-pk]
[kHz]
0.6 V
1.0 V
1.8 V
3.3 V
0
10
20
30
40
012345
[mV]
[mF]
0.6 V
1.0 V
1.8 V
3.3 V
0,990
0,995
1,000
1,005
1,010
0 5 10 15 20 25
[V]
[A]
4.5 V
5.0 V
12 V
14 V
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
39
Ericsson Internal
PRODUCT SPECIFICATION 19 (20)
Prepared (also subject responsible if other) No.
EHOSMIR 2/1301-BMR 464 0008 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-05-02 C
Typical Characteristics
Start-up and shut-down BMR 464 2008 (SIP)
Start-up by input source Shut-down by input source
Start-up enabled by connecting VI at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 m, IO = 50 A
Top trace: output vo ltage (0.5 V/d iv.).
Bottom trace: input voltage (5 V/div.).
Time scale: (20 ms/div.).
Shut-down enabled by disconnecting
VI at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 m, IO = 50 A
Top trace: output voltage (0.5 V/div).
Bottom trace: input voltage (5 V/div.).
Time scale: (2 ms/div.).
Start-up by CTRL signal Shut-down by CTRL signal
Start-up by enabling CTRL signal at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 m, IO = 50 A
Top trace: output vo ltage (0.5 V/d iv.).
Bottom trace: CTRL signal (2 V/div.).
Time scale: (20 ms/div.).
Shut-down enabled by disconnecting
VI at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 m, IO = 50 A
Top trace: output voltage (0.5 V/div).
Bottom trace: CTRL signal (2 V/div.).
Time scale: (2 ms/div.).
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
40
Ericsson Internal
PRODUCT SPECIFICATION 1 (18)
Prepared (also subject responsible if other) No.
EAB/FJB/GMD EHOSMIR 30/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF (Ksenia Harrisen) (EKRIROB) 2014-05-02 E
EMC Specification
Conducted EMI measured according to test set-up be low.
The fundamental switching frequency is 320 kHz at VI = 12 V,
max IO.
Conducted EMI Input terminal value (typical for default
configuration)
EMI without filter for BMR 464 2008
RF Current probe
1kHz – 50 MHz
C1
To spectrum
analyzer
POL
Resistive
load
Battery
supply
C1 = 10uF / 600VDC
Feed- Thru RF capacitor
800mm 200mm
50mm
Conducted EMI test set-up
Layout Recommendations
The radiated EMI performanc e of the product will depend on
the PWB layout and ground l ayer design. It is also important to
consider the stand-off of the product. If a ground layer is us ed,
it should be connected to the output of the product and the
equipment ground or chassis.
A
ground layer will increase the stray capacitance in the PWB
and improve the high frequency EMC performance.
Output Ripple and Noise
Output ripple and noise is measured accord ing to figure belo w.
A
50 mm conductor works as a small inducto
r
forming together
with the two capacitors as a damped filter.
Output ripple and noise test set-up.
Operating information
Power Management O verview
This product is equipped with a PMBus interface. The product
incorporates a wide rang e of readable and configurab le power
management features that are simple to implement
with a minimum of external components. Additional ly, the
product includes protection features that continuously
safeguard the load from dama ge due to unexpected system
faults. A fault is also shown as an alert on the SALERT pin.
The following product parameters can continuously be
monitored by a host: Input voltage, output voltage/current,
and internal temperature. If the monitoring is not needed it can
be disabled and the prod uct enters a low power mode reducing
the power consumption. The protection features are not
affected.
The product is delivered with a default configuration suitable
for a wide range operation in terms of input v oltage, output
voltage, and load. The configuration is stored in an internal
Non-Volatile Memory (NVM). All po wer managem ent functions
can be reconfigured using the PMBus interface. Please contact
your local Ericsson Power Modules representative for design
support of custom configurations or appropriate SW tools for
design and download of your o wn configurations.
Input Voltage
The input voltage range, 4.5 - 14 V, makes the product
easy to use in intermediate bus applications when po wered
by a non-regulated bus conve r ter or a regulated bus converter.
See Ordering Information for input voltage range.
Vout
S
S
GND
Ceramic
Capacitor
0.1 µF
Tantalum
Capacitor
10 µF
Load
50 mm conductor
50 mm conductor BNC-contact to
oscillosco
p
e
Output
Capacitor
470 µF/10 m
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
41
Ericsson Internal
PRODUCT SPECIFICATION 2 (18)
Prepared (also subject responsible if other) No.
EAB/FJB/GMD EHOSMIR 30/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF (Ksenia Harrisen) (EKRIROB) 2014-05-02 E
Input Under Voltage Lockout, UVLO
The product monitors the input voltage and will turn-on and
turn-off at configured levels. The default turn-on input voltage
level setting is 4.20 V, whereas the correspo nding turn-off input
voltage level is 3.85 V. Hence, the default hysteresis between
turn-on and turn-off input voltage is 0.35 V. Once an in put turn-
off condition occurs, the device can respon d in a number of
ways as follows:
1. Continue operating without interruption. The unit will
continue to operate as long as the input voltage can be
supported. If the input voltage continues to fall, there will
come a point where the unit will cease to operate.
2. Continue operating for a given delay period, followed by
shutdown if the fault still exists. The device will remain in
shutdown until instructed to restart.
3. Initiate an immediate shutdown until the fault has been
cleared. The user can select a specific number of retry
attempts.
The default response from a turn-off is an immediate shutdo wn
of the device. The device will continuously check for the
presence of the fault condition. If the fault condition is no
longer present, the product will be re-enabled. T he turn-on and
turn-off levels and response can be reconfigured using the
PMBus interface.
Remote Control
The product is equipped with a
remote control function, i.e., the
CTRL pin. The remote control
can be connected to either the
primary negative inp ut
connection (GND) or an external
voltage (Vext), which is a 3 - 5 V
positive supply voltage in
accordance to the SMBus
Specification version 2.0.
The CTRL function allows the product to be turned on/off by an
external device like a semiconductor or mechanical switch. By
default the product will turn on when the CTRL pin is left open
and turn off when the CTRL pin is applied to GND. The CTRL
pin has an internal pull-up resistor. When the CTRL pin is left
open, the voltage generated o n the CTRL pin is max 5.5 V.
If the device is to be synchronized to an external clock source,
the clock frequency must be stable prior to asserting the CTRL
pin.
The product can also be configure d usin g the PMBus interface
to be “Always on”, or turn on/off can be performed with PMBus
commands.
Input and Output Impedance
The impedance of both the input source and the load will
interact with the impedance of the product. It is important that
the input source has low characteristic imp edance. The
performance in some applications can be enhanced by
addition of external capacitance as described under External
Decoupling Capacitors. If the input voltage source contains
significant inductance, the additio n a cap acitor with low ESR at
the input of the product will ensure stable operation.
External Capacitors
Input capacitors:
The input ripple RMS current in a buck co nverter is equal to
Eq. 1.
DDII loadinputRMS 1,
w
here load
I is the output load current and D is the duty cycle.
The maximum load ripple current becomes 2
load
I. The ripple
current is divided into three parts, i.e., currents in the input
source, external input capacitor, and inter na l input capacitor.
How the current is divided depends on the impedance of the
input source, ESR and capacitance values in the capacitors. A
minimum capacitance of 300 µF with low ESR is
recommended. The ripple current rating of the capacitors must
follow Eq. 1. For high-performance/transie nt applications or
wherever the input source performance is degraded, additional
low ESR ceramic type capacitors at the inp ut is recomme nded.
The additional input low ESR capacitance above the minimu m
level insures an optimized p erformance.
Output capacitors:
When powering loads with significant d ynamic current
requirements, the voltage regulation at the point of load can be
improved by addition of decoupling ca pacitors at the load.
The most effective technique is to locate low ESR ceramic and
electrolytic capacitors as close to the load as possible, using
several capacitors in parallel to lower the effective ESR. The
ceramic capacitors will handle high-frequency dynamic load
changes while the electrolytic capacitors are used to hand le
low frequency dynamic load changes. Ceramic capac itors will
also reduce high frequenc y noise at the load.
It is equally important to use low resistance and low inductance
PWB layouts and cabling.
External decoupling cap acitors are a part of the control loop of
the product and may affect the stability margins.
Stable operation is guaranteed for the following total
capacitance O
C in the output decoupling cap acitor bank where
Eq. 2.
03000 ,470, maxmin
CCCO µF.
The decoupling capac itor bank should consist of capacitor s
which has a capacitance value larger than min
CC and has
an ESR range of
Eq. 3.
30 ,5 , maxmin
ESRESRESR m
The control loop stabilit y margins are limited by the minimum
time constant min
of the capacitors. Hence, the time constant
of the capacitors should follow Eq. 4.
Eq. 4. s 35.2
minminmin
ESRC
This relation can be used if yo ur preferred capacitors have
parameters outside the above stated ranges in Eq. 2 and Eq .3.
CTRL
GND
Vext
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
42
Ericsson Internal
PRODUCT SPECIFICATION 3 (18)
Prepared (also subject responsible if other) No.
EAB/FJB/GMD EHOSMIR 30/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF (Ksenia Harrisen) (EKRIROB) 2014-05-02 E
If the capacitors capacitance valu e is min
CC one must
use at least Ncapacitors where
C
C
Nmin and C
C
ESRESR min
min
.
If the ESR value is max
ESRESR one must use at least N
capacitors of that type where
max
ESR
ESR
N and N
C
Cmin
.
If the
ESR value is min
ESRESR the capacitance value
should be
ESR
ESR
CC min
min
.
For a total capacitance outside the above stated range or
capacitors that do not follow the stated above requir ements
above a re-design of the control loop parameters will be
necessary for robust dynamic operation and stabilit y.
See technical paper TP022 for further information.
Control Loop
The product uses a voltage-mode synchronous buck controller
with a fixed frequency PWM scheme. Althou gh the product
uses a digital control loop, it operates muc h li ke a traditional
analog PWM controller. As in the analog con t roller case, the
control loop compares the output voltage to the desired voltage
reference and compensation is added to keep the loop stable
and fast. The resulting error signal is used to drive the PWM
logic. Instead of using external resistors and capacitors
required with traditional analog control loops, the product uses
a digital Proportional-Integral-Derivative (PID) compensator in
the control loop. The characteristics of the control loop is
configured by setting PID compensation parameters. These
PID settings can be reconfigured usi ng the PMBus interface.
Control Loop Compensation Setting
The products without DLC are b y default configured with a
robust control loop compensation setting (PID setting) which
allows for a wide range opera t ion of input and output voltages
and capacitive loads as defi ne d in the section External
Decoupling Capacitors. For a n application with a specific input
voltage, output voltage, and c apac itive load, the control loop
can be optimized for a robust and stable operation and with an
improved load transient response. This optimization will
minimize the amount of required outp ut deco upling capacitors
for a given load transient requirement yielding an optimized
cost and minimized board spa c e. The optimization together
with load step simulations can be made using the Ericsson
Power Designer software.
Dynamic Loop Compensation (DLC)
Only some of the products that this specification covers have
this feature (see section Ordering Information).
The DLC feature might in some documents be referred to as
“Auto Compensation” or “Aut o Tuning” feature.
The DLC feature measures the characteristics of the power
train and calculates the proper compensator PID coefficient s.
The default configuration is th at once the o utput voltage ramp
up has completed, the DLC algorithm will begin and a new
optimized compensator solution (PID setting) will be found and
implemented. The DLC algorithm typicall y takes between 50
ms and 200 ms to complete.
By the PMBus command AUTO_COMP_CONFIG the user
may select between several different modes of operati on:
Disable
Autocomp once, will run DLC algorithm each time the
output is enabled (default conf iguration)
Autocomp every second will initiate a new DLC
algorithm each 1 second
Autocomp every minute will initiate a new DLC
algorithm every minute.
The DLC can also be configured to run once only after the first
ramp up (after input power have been applied) and to use that
temporary stored PID settings in all subsequent ramps. If input
power is cycled a new DLC algorithm will be performed after
the first ramp up. The default setting is however to run the DLC
algorithm after every ramp up.
The DLC algorithm can also be initiated manually by sending
the AUTO_COMP_CONTROL command.
The DLC can also be configured with Auto Comp Gain Control.
This scales the DLC results to allow a trade-off between
transient response and steady-state dut y cycle jitter. A setting
of 100% will provide the fastest transient response while a
setting of 10% will produce the lowest jitter. The default is 50%.
Changing DLC and PID Setting
Some caution must be considered while DLC is enabled and
when it is changed from enabled or disabled.
When operating, the controller IC uses the settings loaded in
its (volatile) RAM memory. When the input power is applied the
RAM settings are retrieved from the pin-strap resistors and the
two non-volatile memories (DEF AULT and USER). The
sequence is described in the “Initialization Procedure” secti on.
When DLC is enabled:
When DLC is enabled, the normal sequence (after input p ower
has been applied) that a val ue stored in the user non-volatile
memory overwrites any previously loaded val ue does not apply
for the PID setting (stored in the PID_TAPS register). The PID
setting in the user non-volatile memory is ignored and a non-
configurable default PID setting is loaded to RAM to act as a
safe starting value for the DLC. Once the output has been
enabled and the DLC algorithm has found a ne w optimized PID
setting, it will be loaded in RAM and used by the control loop.
When saving changes to the user non-volatile memory, all
changes made to the content of RAM will be saved. This also
includes the default PID setting (loaded to RAM to act as a
safe starting value) or the PID setting changed b y the DLC
algorithm after enabling output. The result is that as lon g as
DLC is enabled the PID setting in the user non-volatile memory
is ignored, but it might accidentally get over written.
When changing DLC from dis abled to enabled:
A
non-configurable defa ult PID setting is lo aded to RAM to act
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
43
Ericsson Internal
PRODUCT SPECIFICATION 4 (18)
Prepared (also subject responsible if other) No.
EAB/FJB/GMD EHOSMIR 30/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF (Ksenia Harrisen) (EKRIROB) 2014-05-02 E
as a safe starting value for the DLC (same as above).
When changing DLC from enabled to disabled:
When changing DLC from enabled to disabled, the PID setting
in the user non-volatile memory will be loaded to RAM. Any
new optimized PID setting in RAM will be lost, if not first stored
to the user non-volatile memory.
When DLC is disabled:
When DLC is disabled and input power has been applied, the
PID setting in the user non-volatile memory will be loaded to
RAM and used in the control loop.
The original PID setting in the user non-volatile memory is
quite slow and not recommended for optimal performance. If
DLC is disabled it is recommended to either:
1. Use the DLC to find optimized PID setting.
2. Use Ericsson Power Designer to find appropriate PID
setting.
3. Use Universal PID as defined below.
The Universal PID setting (taps) is:
A
= 3289.56,
B = -6248.12,
C = 2964.06
Write 0x7CB941FDC3417 CCD99 to PID_TAPS register and
write command STORE_USER_ALL
Note that if DLC is enabled, for best results VI must be stable
before DLC algorithm begins.
Load Transient Respo nse Optimization
The product incorporates a Non-Linear transient Response,
NLR, loop that decreases the response time and the output
voltage deviation during a load transient. The NLR results in a
higher equivalent loop bandwidth than is possible using a
traditional linear control loop. The product is pre-configured
with appropriate NLR settin gs for robust and stable operatio n
for a wide range of input voltage and a cap acitive load range
as defined in the section External Decoupling Capacitors. For
an application with a specific input voltage, output voltage, and
capacitive load, the NLR confi guration can be optimized for a
robust and stable operation and with an improved load
transient response. This will also reduce the amount of output
decoupling capacitors and yield a reduced cost. However, the
NLR slightly reduces the efficiency. In order to obtain maximal
energy efficiency the load transient requirement has to be met
by the standard control loop compensation a nd the decoupling
capacitors. The NLR settings can be reconfigured using the
PMBus interface.
See application note AN306 for further information.
Remote Sense
The product has remote sense that can be u s ed to
compensate for voltage drops between the output and the
point of load. The sense traces should be located close to the
PWB ground layer to reduce noise susceptibility. Due to
derating of internal output capacitance the voltage drop should
be kept below 2/)5.5( ODROPMAX VV . A large voltage drop
will impact the electrical performance of the regulator. If the
remote sense is not needed, +S should be connected to VOUT
and S should be connected to GND.
Output Voltage Adjust using Pin-strap Resistor
Using an external Pin-strap
resistor, RSET, the output
voltage can be set in the
range 0.6 V to 3.3 V at 28
different levels shown in the
table below. The resistor
should be applied between
the VSET pin and the PREF
pin.
RSET also sets the maximum output voltage, see section
“Output Voltage Range Limitation”. T he resistor is sensed only
during product start-up. Changin g the resisto r value during
normal operation will not change the output voltage. The input
voltage must be at least 1 V larger than the output voltage i n
order to deliver the correct output voltage. See Ordering
Information for output voltage rang e.
The following table sho ws recommended resistor values for
RSET. Maximum 1% tolerance resistors are required.
VO [V] RSET[k] VO [V] RSET[k]
0.60 10 1.50 46.4
0.65 11 1.60 51.1
0.70 12.1 1.70 56.2
0.75 13.3 1.80 61.9
0.80 14.7 1.90 68.1
0.85 16.2 2.00 75
0.90 17.8 2.10 82.5
0.95 19.6 2.20 90.9
1.00 21.5 2.30 100
1.05 23.7 2.50 110
1.10 26.1 3.00 121
1.15 28.7 3.30 133
1.20 31.6
1.25 34.8
1.30 38.3
1.40 42.2
The output voltage and the maximum o utput voltage can be pin
strapped to three fixed values b y connecting the VSET pin
according to the table below.
VO [V] VSET
0.60 Shorted to PREF
1.2 Open “high impedance”
2.5 Logic High, GND as reference
RSET
VSET
PREF
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
44
Ericsson Internal
PRODUCT SPECIFICATION 5 (18)
Prepared (also subject responsible if other) No.
EAB/FJB/GMD EHOSMIR 30/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF (Ksenia Harrisen) (EKRIROB) 2014-05-02 E
Output Voltage Adjust using PMBus
The output voltage set by pin-strap can be overridden by
configuration file or by using a PMBus command. See
Electrical Specification for adjustment range.
When setting the output voltage by confi guration file or by a
PMBus command, the specified output voltag e accuracy is
valid only when the set output voltage level falls within the
same bin range as the voltage level defined by the pin-strap
resistor RSET. The applicable bin ranges are defined in the
table below. Valid accuracy for voltage levels outside the
applicable bin range is two times the specified.
Example:
Nominal VO is set to 1.10 V by RSET = 26.1 k. 1.10 V falls
within the bin range 0.988-1.383 V, thus specified accuracy is
valid when adjusting VO within 0.988-1.383V.
VO bin ranges [V]
0.600 – 0.988
0.988 – 1.383
1.383 – 1.975
1.975 – 2.398
2.398 – 2.963
2.963 – 3.753
Output Voltage Range Limitation
The output voltage range that is possible to set by
configuration or by the PMBus interface is limited by the pin-
strap resistor RSET. The maximum output voltage is set to 110%
of the nominal output value defined by RSET,
RSETOMAXO VV ,, 1.1 . This protects the load from an over
voltage due to an accidental wron g PMBus command.
Output Voltage Adjust Limitation using PMBus
In addition to the maximum output voltage limitation by the pin-
strap resistor RSET, there is also a limitation in how much the
output voltage can be increased while the output is enabled. If
output is disabled then RSET resistor is the only limitation.
Example:
If the output is enabled with output voltage set to 1.0 V, then it
is only possible to adjust/chan ge the output voltage up to 1.7-
V as long as the output is enabled.
VO setting
when enabled [V] VO set range
while enabled [ V ]
0.000 – 0.988 ~0.2 to >1.2
0.988 – 1.383 ~0.2 to >1.7
1.383 – 1.975 ~0.2 to >2.5
1.975 – 2.398 ~0.2 to >2.97
2.398 – 2.963 ~0.2 to >3.68
2.963 – 3.753 ~0.2 to >4.65
Over Voltage Protection (OVP)
The product includes over volt age limiting circuitry for
protection of the load. The default OVP limit is 15% above the
nominal output voltage. If the output voltage exceeds the OVP
limit, the product can respond in different ways:
1. Initiate an immediate shutdown until the fault has been
cleared. The user can select a specific number of retry
attempts.
2. Turn off the high-side MOSFET and turn on the low-side
MOSFET. The low-side MOSFET remains ON until the
device attempts a restart, i.e. the output voltage is pulled to
ground level (crowbar function).
The default response from an overvoltage fault is to
immediately shut do wn as in 2. The device will continuously
check for the presence of the fault condition, and when the
fault condition no longer exists the device will be re-enabled.
For continuous OVP when operating from an external clock for
synchronization, the only allowed response is an immediate
shutdown. The OVP limit and fault response can be
reconfigured using the PMBus interface.
Under Voltage Protection (UVP)
The product includes output under vo ltage limiting circuitry for
protection of the load. The default UVP limit is 15% be low the
nominal output voltage. T he UVP limit can be reconfigured
using the PMBus interface.
Power Good
The product provides a Power Good (PG) flag in the Status
Word register that indicates the output voltage is within a
specified tolerance of its target level an d no fault condition
exists. If specified in section Connections, the product also
provides a PG signal output. The PG pin is active high and by
default open-drain but may also be configured as push-pu ll via
the PMBus interface.
By default, the PG signal will be asserted when the output
reaches above 90% of the nominal voltag e, and de-asserted
when the output falls below 85% of the nominal voltage. T hese
limits may be changed via the PMBus interfa ce. A PG delay
period is defined as the time from when all conditions within
the product for asserting PG are met to when the PG signal is
actually asserted. The default PG delay is set to 10 ms. This
value can be reconfigured using the PMBus i nterface.
For products with DLC the PG signal is by default asserted
directly after the DLC operation have been completed. If DLC
is disabled the configured PG del ay will be used. This can be
reconfigured using the PMBus interface.
Switching Frequency
The fundamental switching frequency is 320 kHz, which yields
optimal power efficiency. The switching frequency can be set
to any value between 200 kHz and 640 kHz using the PMBus
interface. The switching frequency will change the
efficiency/power dissipation, load transient response and
output ripple. For optimal control lo op performance in a product
without DLC, the control loop must be re-optimized when
changing the switching frequency.
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
45
Ericsson Internal
PRODUCT SPECIFICATION 6 (18)
Prepared (also subject responsible if other) No.
EAB/FJB/GMD EHOSMIR 30/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF (Ksenia Harrisen) (EKRIROB) 2014-05-02 E
Synchronization
Synchronization is a feature that allows multiple products to be
synchronized to a common frequency. Synchronized pr oducts
powered from the same bus eliminate beat frequencies
reflected back to the input supply, and also reduces EMI
filtering requirements. Eliminating the slow beat frequencies
(usually <10 kHz) allows the EMI filter to be designed to
attenuate only the synchronization freq uency. Synchronization
can also be utilized for phase spreading, described in section
Phase Spreading.
The products can be synchronize d with an external oscillator or
one product can be configur ed with the SYNC pin as a SYNC
Output working as a master driving the synchronization. All
others on the same synchronization bus must be configured
with SYNC Input. Default configuration is us ing the internal
clock, independently of signal at the SYNC pin.
See application note AN309 for further information.
Phase Spreading
When multiple products share a common DC input supply,
spreading of the switching clock phase between the products
can be utilized. T his dramatically reduces input capacitance
requirements and efficiency losses, since the peak curre nt
drawn from the input supply is effectively spread out over the
whole switch period. This requires that the products are
synchronized. Up to 16 different phases can be used.
The phase spreading of the product can be configured using
the PMBus interface.
See application note AN309 for further information.
Parallel Operation (Current Sharing)
Paralleling multiple products can be used to i ncrease the
output current capability of a single power rail. By connecting
the GCB pins of each device and configuring the devices as a
current sharing rail, the units will share the c urrent equally,
enabling up to 100% utiliz ation of the current capability for
each device in the current shar ing rail. The product uses a low-
bandwidth, first-order digital current sharing by aligning the
output voltage of the slave dev ices to del iver the same current
as the master device. Artificial droop resistance is added to the
output voltage path to control the slope of the loa d lin e curve,
calibrating out the phys ical parasitic mismatches due to power
train components and PWB layout. Up to 7 devices can be
configured in a given current shari ng group.
In order to avoid interference with other algorithms executing
during parallel operation, the dead-time algorithm should be
turned off and fixed dead-times be used. See application note
A
N307 for further information.
Phase Adding and Shedding fo r Parallel Operation
During periods of light load ing, it may be beneficial to disable
one or more phases (modules) in order to el iminate the current
drain and switching losses associated with those phases,
resulting in higher efficiency. The product offers the ability to
add and drop phases (modules) using a PMBus command in
response to an observed load current chan ge. All phases
(modules) in a current share rail ar e considered active prior to
the current sharing rail ramp to power-good. Phases can be
dropped after power-good is reached. An y member of the
current sharing rail can be dropped. If the reference module is
dropped, the remaining active module with the lowest member
position will become the ne w referenc e. Additionally, any
change to the number of members of a current sharing rail will
precipitate autonomous phase distribution within the rail where
all active phases realign their phase position based on their
order within the number of active members. If the members of
a current sharing rail are forced to shut down due to an
observed fault, all members of the rail will attempt to re-start
simultaneously after the fault has cleared.
See application note AN307 for further information.
Efficiency Optimized Dead Time Control
The product utilizes a closed l oop algorithm to optimize the
dead-time applied between the gate drive signals for the switch
and synch FETs. The algorithm constantly adjusts the
deadtime non-overlap to minimize the duty cycle, thus
maximizing efficiency. This algorithm will null out deadtime
differences due to component variation, temperature and
loading effects. The algorithm can be configured via the
PMBus interface.
Over Current Protection (OCP)
The product includes current limiting circuitry for protection at
continuous overload. The following OCP response options a r e
available:
1. Initiate a shutdown and attempt to restart an infinite number
of times with a preset delay period between attempts.
3. Initiate a shutdown and attempt to restart a preset number
of times with a preset delay period between attempts.
4. Continue operating for a given delay period, followed by
shutdown if the fault still exists.
5. Continue operating thro ugh the fault (this could result in
permanent damage to the power sup pl y).
6. Initiate an immediate shutdo wn.
The default response from an over current fault is an
immediate shutdo wn of the device. The device will
continuously check for the presence of the fault condition, and
if the fault condition no longer exists the device will be re-
enabled. The load distribution should be designed for the
maximum output short circuit current specified. The OCP limit
and response of the product can be reconfigured using the
PMBus interface.
Initialization Procedure
The product follows a specific internal initialization procedure
after power is applied to the VIN pin:
1. Status of the address and output voltage pin-strap pins are
checked and values associated with the pin settings are
loaded to RAM.
2. Values stored in the Ericsson default non-v ol atile memory
are loaded to RAM. This overwrites any previously loade d
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
46
Ericsson Internal
PRODUCT SPECIFICATION 7 (18)
Prepared (also subject responsible if other) No.
EAB/FJB/GMD EHOSMIR 30/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF (Ksenia Harrisen) (EKRIROB) 2014-05-02 E
values.
3. Values stored in the user non-volatil e memory are loaded
to RAM. This overwrites any previously loaded values.
Once the initialization process is completed, the product is
ready to be enabled using the CTRL pin. The product is also
ready to accept commands via the PMBus in terface, which will
overwrite any valu es loaded during the initial ization procedure.
Soft-start Power Up
The soft-start control introduces a time-delay before allo wing
the output voltage to rise. Once the initialization time has
passed the device will wait for the configure d delay period prior
to starting to ramp its output. After the delay period has
expired, the output will begin to ramp towards its target voltage
according to the configured soft-start ramp time.
The default settings for the soft-start delay period and the soft-
start ramp time is 10 ms. Hence, power-up is completed within
20 ms in default configuration using remote control. When the
soft-start delay time is set to 0 ms, the module will begin its
ramp-up after the internal circuitr y has initial ized
(approximately 2 ms). It is generally recom mended to set the
soft-start ramp-up time to a value greater than 500 s to
prevent inadvertent fault conditions due to excessive inrush
current. The acctual minimum ramp-up time will ho wever
normally be limited by the control lo op settings and ramp-up
times of internal interface voltages in the cont roller circuit to
approximatley 2 ms. The soft-start power up of the product can
be reconfigured using the PMBus interface.
VIN
CTRL
VOUT
Initialization
time Delay
time Ramp
time
Illustration of Power Up Procedure.
Output Voltage Sequencing
A
group of products may be configured to power up in a
predetermined sequence. This feature is especial ly useful
when powering advanced processors, FPGAs, and ASICs that
require one supply to reac h its operating voltage prior to
another. Multi-product sequencin g can b e achieved by
configuring the start delay and rise time of each device through
the PMBus interface and by using the CTRL start signal.
See application note AN310 for further information.
Illustration of Output Voltage Sequencing.
Voltage Tracking
The product integrates a lossless tracking scheme that allows
its output to track a voltage that is applied to the VTRK pin with
no external components required. During ramp-up, the output
voltage follows the VTRK voltage u ntil the preset output
voltage level is met. The product offers two modes of tracking
as follows:
1. Coincident. This mode configures the product to ramp its
output voltage at the same rate as the voltage applied to
the VTRK pin.
Illustration of Coincident Voltage Tracking.
VOUT
t
V1
V2
VOUT
t
MASTER
SLAVE
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
47
Ericsson Internal
PRODUCT SPECIFICATION 8 (18)
Prepared (also subject responsible if other) No.
EAB/FJB/GMD EHOSMIR 30/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF (Ksenia Harrisen) (EKRIROB) 2014-05-02 E
2. Ratiometric. This mode configures the pro duct to ramp its
output voltage at a rate that is a percentage of the voltag e
applied to the VTRK pin. The default settin g is 50%, but a
different tracking ratio may be set by an external resistive
voltage divider or through the PMBus interface.
Illustration of Ratiometric Voltage Tracking
The master device in a tracking group is defined as the device
that has the highest target output voltage within the gr oup. This
master device will control the ramp rate of all tracking devices
and is not configured for tracking mode. All of the CTRL pins in
the tracking group must be connected and driven by a single
logic source. It should be noted that current sharing gro ups
that are also configured to track another voltage do not offer
pre-bias protection; a minimu m load should therefore be
enforced to avoid the output voltag e from being held up by an
outside force.
See application note AN310 for further information.
Voltage Margining Up/Down
The product can adjust its output higher or lower than its
nominal voltage setting in ord er to determin e whether the load
device is capable of operatin g over its specified supply voltage
range. This provides a conven ient metho d for dynamically
testing the operation of the load circuit over its supply margin
or range. It can also be used to verify the function of supply
voltage supervisors. Margin limits of the nominal output voltage
±5% are default, but the margin limits can be reconfigured
using the PMBus interface.
Pre-Bias Startup Capability
Pre-bias startup often occurs in complex digital systems when
current from another power source is fed back through a dual-
supply logic component, such as FPGAs or ASICs. The
product family incorporates synchronous r ectifiers, but will not
sink current during startup, or turn off, or whenever a fault
shuts down the product in a pre-bias cond ition. Pre-bias
protection is not offered for current sharing groups that also
have voltage tracking enabled .
Group Communication Bus
The Group Communication Bus, GCB, is used to communicate
between products. T his dedi cated bus provides the
communication channel between devices for features such as
sequencing, fault spreading, and current sharing. The GCB
solves the PMBus data rate limitation. The GCB pin on all
devices in an applicatio n should be connected together. A pull-
up resistor is required on the common GCB i n order to
guarantee the rise time as follows:
Eq. 5. s 1
GCBGCB CR ,
where GCB
Ris the pull up resistor value and GCB
Cis the bus
loading. The pull-up resistor s hould be tied to an external
supply voltage in range from 3.3 to 5 V, which should be
present prior to or during power-up.
If exploring untested compensation or deadtime configurations,
it is recommended that 27 series resistors are placed
between the GCB pin of each product and the common GCB
connection. This will avoid propagation of faults between
products potentially caused by hazardous configuration
settings. When the configurations of the prod ucts are settled
the series resistors can be removed.
The GCB is an internal bus, such that it is only connected
across the modules and not the PMBus system host. GCB
addresses are assigned on a rail level, i.e. modules within the
same current sharing group share the same GCB address.
A
ddressing rails across the GCB is done with a 5 bit GCB ID,
yielding a theoretical total of 32 rails that can be shared with a
single GCB bus. See application note AN 307 for further
information.
Fault spreading
The product can be configur ed to broadcast a fault event over
the GCB bus to the other devices in the group. When a non-
destructive fault occurs and the device is configured to shut
down on a fault, the device will shut down and broadcast the
fault event over the GCB bus. The other devices on the GCB
bus will shut down together if configured to do so, and will
attempt to re-start in their prescribed order if configured to do
so.
Over Temperature Protection (OTP)
The products are protected from thermal overload by an
internal over temperature shut down function in the controller
circuit N1, located at position P2 (see section Thermal
Consideration). Some of the products that thi s specification
covers use the temperature at position P2 (TP2) as a reference
for specified OTP threshold and some us e position P1 (TP1) as
a reference for specified OTP threshold. See the Over
Temperature Protection section in the el ectrical specification
for each product.
Products with P1 as reference for OTP:
When TP1 as define d in thermal consideration section exceeds
approximately 120 °C the product will shut down. The specified
OTP threshold and hysteresis are valid for worst case
operation regarding cooling conditions, in put voltage and
output voltage. The actually configured default value in the
VOUT
t
MASTER
SLAVE
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
48
Ericsson Internal
PRODUCT SPECIFICATION 9 (18)
Prepared (also subject responsible if other) No.
EAB/FJB/GMD EHOSMIR 30/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF (Ksenia Harrisen) (EKRIROB) 2014-05-02 E
controller circuit in position P2 is 110 °C, but at worst case
operation the temperature is approximately 10 °C higher at
position P1. At light load the temperature is approximately the
same in position P1 and P2. This means the OTP threshold
and hysteresis will be lower at light load conditions when P1 is
used as a reference for OTP.
Products with P2 as reference OTP:
When TP2 as define d in thermal consideration section exceeds
120 °C the product will shut down. For products with P2 as a
reference for OTP the configur ed default value in the controller
circuit in position P2 is 120 °C.
The OTP threshold, hysteresis, and fault response of the
product can be reconfigured using the PMBus interface. The
fault response can be configured as follows:
1. Initiate a shutdown and attempt to restart an infinite number
of times with a preset delay period between attempts
(default configuration).
2. Initiate a shutdown and attempt to restart a preset number
of times with a preset delay period between attempts.
3. Continue operating for a given delay period, followed by
shutdown if the fault still exists.
4. Continue operating thro ugh the fault (this could result in
permanent damage to the power sup pl y).
5. Initiate an immediate shutdo wn.
Optimization examples
This product is designed with a digital control circuit. The
control circuit uses a configuration file which determines the
functionality and performa nce of the product. It is possible to
change the configuration file to optimiz e certain performance
characteristics. In the table below is a schematic view on how
to change different configuration par ameters in order to
achieve an optimization towards a wanted performance.
Increase
No change
Decrease
Config.
parameters Switching
frequency
Control
loop
bandwidth NLR
threshold
Diode
emulation
(DCM) Min.
pulse
Optimized
performance
Maximize
efficiency Enable Disable
Minimize
ripple ampl. Enable
or
disable
Enable
or
disable
Improve
load
transient
response Disable Disable
Minimize
idle power
loss Enable Enable
Note 1: The following table, graphs and waveforms are only examples
and valid for BMR 464 2008.
Note 2: In the following table and graphs, the worst-case scenario
(load step 37.5-12.5 A) has been considered for load transient.
Pli Input idling
power
(no load)
Default
configuration:
Continues
Conduction
Mode, CCM
VO = 0.6 V 0.95
W
VO = 1.0 V 0.95
VO = 1.8 V 1.22
VO = 3.3 V 1.88
DCM,
Discontinues
Conduction
Mode
(diode
emulation)
VO = 0.6 V 0.21
W
VO = 1.0 V 0.21
VO = 1.8 V 0.21
VO = 3.3 V 0.21
DCM with
Minimum
Pulse
Enabled
VO = 0.6 V 0.43
W
VO = 1.0 V 0.46
VO = 1.8 V 0.54
VO = 3.3 V 0.67
PCTRL Input
standby
power
Turned off
with
CTRL-pin
Default
configuration:
Monitoring
enabled
170 mW
Pulse
monitor
mode:
Monitoring
disabled
109 mW
Low power
mode:
Monitoring
disabled
85 mW
Vtr1
Load
transient
peak
voltage
deviation
Load step
25-75-25%
of max IO
Default
configuration
di/dt = 2 A/s
CO = 470 F
VO = 0.6 V 300
mV
VO = 1.0 V 300
VO = 1.8 V 305
VO = 3.3 V 315
DLC and
Optimized
NLR
configuration
di/dt = 2 A/s
CO= 470 F
VO = 0.6 V 100
mV
VO = 1.0 V 100
VO = 1.8 V 100
VO = 3.3 V 100
ttr1
Load
transient
recovery
time
Load step
25-75-25%
of max IO
Default
configuration
di/dt = 2 A/s
CO=470 F
VO = 0.6 V 100
µs
VO = 1.0 V 100
VO = 1.8 V 100
VO = 3.3 V 100
DLC and
Optimized
NLR
configuration
di/dt = 2 A/s
CO= 470 F
VO = 0.6 V 50
VO = 1.0 V 50
VO = 1.8 V 50
VO = 3.3 V 50
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
49
Ericsson Internal
PRODUCT SPECIFICATION 10 (18)
Prepared (also subject responsible if other) No.
EAB/FJB/GMD EHOSMIR 30/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF (Ksenia Harrisen) (EKRIROB) 2014-05-02 E
Efficiency vs. Output Current and Switching frequency
Efficiency vs. load current and switching frequency at
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, CO = 470 µF/10 m
Default configuration except changed frequency
Power Dissipation vs. Output Current and Switching frequency
Dissipated power vs. load current and switching frequency at
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, CO = 470 µF/10 m
Default configuration except changed frequency
Output Ripple vs. Switching frequency
Output voltage ripple Vpk-pk at : T P1 = +25 °C, VI = 12 V, CO = 470 µF/10 m,
IO = 50 A resistive load. Default configuration except changed frequency.
Load transient vs. Switching frequency
Load transient peak voltage deviation vs. frequency.
Step-change (12.5-37.5-12.5 A).
TP1 = +25 °C, VI = 12 V, VO =1.0 V, CO = 470 µF/10 m
Load Transient vs. Decoupling Capacitance, VO = 1.0 V
Load transient peak voltage deviation vs. decoupling capacitance.
Step (12.5-37.5-12.5 A). Parallel coupling of capacitors with 470 µF/10 m,
TP1 = +25 °C. VI = 12 V, VO = 1.0 V, fsw = 320 kHz, di/dt = 2 A/µs
Load Transient vs. Decoupling Capacitance, VO= 3.3 V
Load transient peak voltage deviation vs. decoupling capacitance.
Step (12.5-37.5-12.5 A). Parallel coupling of capacitors with 470 µF/10 m,
TP1 = +25 °C. VI = 12 V, VO = 3.3 V, fsw = 320 kHz, di/dt = 2 A/µs
70
75
80
85
90
95
0 1020304050
[%]
[A]
200
kHz
320
kHz
480
kHz
640
kHz
0
2
4
6
8
10
12
0 1020304050
[W]
[A]
200
kHz
320
kHz
480
kHz
640
kHz
0
10
20
30
40
50
60
200 300 400 500 600
[mVpk-pk]
[kHz]
0.6 V
1.0 V
1.8 V
3.3 V
0
100
200
300
400
500
600
200 300 400 500 600
[mV]
[kHz]
Universal PID,
No NLR
DLC,
No NLR
Universal PID,
Default NLR
DLC,
Default NLR
Universal PID,
Opt. NLR
DLC,
Opt. NLR
0
100
200
300
400
500
012345
[mV]
[mF]
Universal PID,
No NLR
DLC,
No NLR
Universal PID,
Default NLR
DLC,
Default NLR
Universal PID,
Opt. NLR
DLC,
Opt. NLR
0
100
200
300
400
500
012345
[mV]
[mF]
Universal PID,
No NLR
DLC,
No NLR
Universal PID,
Default NLR
DLC,
Default NLR
Universal PID,
Opt. NLR
DLC,
Opt. NLR
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
50
Ericsson Internal
PRODUCT SPECIFICATION 11 (18)
Prepared (also subject responsible if other) No.
EAB/FJB/GMD EHOSMIR 30/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF (Ksenia Harrisen) (EKRIROB) 2014-05-02 E
Output Load Transient Response, Defau lt Configuration
Output voltage response to load current step-
change (12.5-37.5-12.5 A) at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
di/dt=2 A/µs, fsw = 320 kHz, CO = 470 µF/10 m
Default configuration (DLC and default NLR)
Top trace: output voltage (200 mV/div.).
Bottom trace: load current (10 A/div.).
Time scale: (0.1 ms/div.).
Output Load Transient Response, DLC and No NLR
Output voltage response to load current step-
change (12.5-37.5-12.5 A) at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
di/dt=2 A/µs, fsw = 320 kHz, CO = 470 µF/10 m
DLC and no NLR
Top trace: output voltage (200 mV/div.).
Bottom trace: load current (10 A/div.).
Time scale: (0.1 ms/div.).
Output Load Transient Response, DLC and Optimized NLR
Output voltage response to load current step-
change (12.5-37.5-12.5 A) at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
di/dt=2 A/µs, fsw = 320 kHz, CO = 470 µF/10 m
DLC and optimized NLR
Top trace: output voltage (200 mV/div.).
Bottom trace: load current (10 A/div.).
Time scale: (0.1 ms/div.).
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
51
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ition De
s
Ref
e
indu
N1,
guard band o
f
m
ponent temp
e
r
ating curves.
s
ponsible if other)
EHOSMIR
(Ksenia Harr
i
d
eration
s
igned to oper
a
sufficient cooli
e
ration.
d mainly by co
o
nvection, whi
c
t
. Increased ai
r
n
t Derating gra
p
o
vides the avai
r
ature and air
v
t
ed on a 254 x
rtically in a wi
n
T
he test board
he product ca
n
s
itions P1 and
o
t exceed the
m
value is the a
b
a
nd that the el
e
T
P1
+95 °C.
0
19 for further
i
d
uct operatin
g
a
ting temperat
u
e
product, and
p
a
suring the tem
u
re at these po
s
um temperatu
r
r
ement points
m
g
y. Temperatu
r
e
ference point
d
amage. It sh
o
ng of the over
d
itions, the pr
o
w
ed temperatu
s
cription
e
rence point, L1,
cto
r
control circuit
f
5 °C is applie
d
e
ratures when
c
i
sen)
a
te in different
t
ng must be pr
o
nduction, from
c
h is dependen
r
flow enhance
s
p
h found in th
e
lable output c
u
v
elocity at spe
c
254 mm, 35 µ
m
d tunnel with
a
has 8 layers.
n
be verified b
y
P2. The temp
e
m
ax values pr
o
b
solute maxim
u
e
ctrical Output
i
nformation.
g
temperature
u
res are used t
o
p
roper thermal
perature at po
s
s
itions (T
P1
, T
P
r
es in the table
m
ay vary with
d
r
es above ma
x
P1 are not all
o
o
uld also be no
temperature p
o
duct may shut
re at T
P1
is rea
c
Max Tem
p
125 °C*
125 °C*
d
to the maxim
c
alculating out
p
Checked
(EKRIROB
t
hermal
o
vided to
the pins to th
e
t on the airflo
w
s
the cooling o
f
e
Output sectio
u
rrent vs.
c
ified V
I
.
m
(1 oz), test
a
cross-section
y
measuring th
e
e
rature at thes
e
o
vided in the
u
m rating
data is
o
monitor the
conditions ca
n
s
itions P1 and
P
2
) should not
below. The
d
ifferent therm
a
x
imum T
P1
,
o
wed and may
ted that
rotection (OT
P
down before
c
hed.
p
.
um recorded
p
ut current
Ericsson
PRODU
C
No.
30/1301-
Date
) 2014-05-
e
w
f
n
e
e
n
a
l
P
)
Temperatu
r
SIP versi
o
Temperatu
r
Definition
The refere
limits of th
e
measured
cause deg
also used
t
conditions
.
safety ma
r
product.
Internal
C
T SPECIFI
C
BMR 464 Ue
Rev
-
02 E
r
e positions and
a
o
n
r
e positions and
a
n
of reference
e
nce temperat
u
e
product. Te
m
at the referen
c
radation or pe
r
to define the t
e
. T
P1
is defined
r
gins, proper o
p
Top view
P1
P1
C
ATION
n
Reference
a
ir flow directio
n
a
ir flow directio
n
temperature
T
u
re is used to
m
m
perature abo
v
c
e point P1 is
n
r
manent dama
e
mperature ra
n
by the design
p
eration and h
AI
R
AIR FLOW
n
.
n
.
T
P1
m
onitor the te
m
v
e maximum T
P
n
ot allowed an
d
ge to the prod
u
n
ge for normal
and used to g
u
igh reliabilit y o
f
Bottom view
R
FLOW
P2
P2
12 (18)
m
perature
P
1
,
d
may
u
ct. T
P1
is
operating
uarantee
f
the
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
52
Ericsson Internal
PRODUCT SPECIFICATION 13 (18)
Prepared (also subject responsible if other) No.
EAB/FJB/GMD EHOSMIR 30/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF (Ksenia Harrisen) (EKRIROB) 2014-05-02 E
Connections (Lay Down version)
Pin layout, top view (component placement for illustration only).
Pin Designation Function
1A, 1B VIN Input Voltage
2A, 2B GND Power Ground
3A, 3B VOUT Output Voltag e
4A VTRK Voltage Tracking input
4B PREF Pin-strap reference
5A +S Positive sense
5B S Negative sense
6A SA0 PMBus address pinstrap 0
6B GCB Group Communication Bus
7A SCL PMBus Clock
7B SDA PMBus Data
8A VSET Output voltage pinstrap
8B SYNC Synchronization I/O
9A SALERT PMBus Alert
9B CTRL Remote Control
10A PG Power Good
10B SA1 PMBus address pinstrap 1
Connections (SIP version)
Pin layout, bottom view (component placement for illustration only).
Pin Designation Function
1A, 1B VIN Input Voltage
2A, 2B GND Power Ground
3A, 3B VOUT Output Voltag e
4A +S Positive sense
4B S Negative sense
5A VSET Output voltage pinstrap
5B VTRK Voltage Tracking input
6A SALERT PMBus Alert
6B SDA PMBus Data
7A SCL PMBus Clock
7B SA1 PMBus address pinstrap 1
8A SA0 PMBus address pinstrap 0
8B SYNC Synchronization I/O
9A PG Power Good
9B CTRL Remote Control
10A GCB Group Communication Bus
10B PREF Pin-strap reference
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
53
Ericsson Internal
PRODUCT SPECIFICATION 14 (18)
Prepared (also subject responsible if other) No.
EAB/FJB/GMD EHOSMIR 30/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF (Ksenia Harrisen) (EKRIROB) 2014-05-02 E
Unused input pins
Unused SDA, SCL and GCB pins should still have pull-up
resistors as specified.
Unused VTRK or SYNC pins should b e left open or co nnected
to the PREF pin.
Unused CTRL pin can be left open due to internal pull-up.
VSET and SA0/SA1 pins must be used. These pins must have
pin-strap resistors or strapping settings as specified.
PWB layout considerations
The pin-strap resistors, RSET, and RSA0/RSA1 should be placed
as close to the product as possible to minimize loops that may
pick up noise.
A
void current carrying pla nes under the pin-strap resistors and
the PMBus signals.
The capacitor CI (or capacitors implementing it) should be
placed as close to the input pins as possible.
Capacitor CO (or capacitors implementing it) should be placed
close to the load.
Care should be taken in the routing of the connections from
the sensed output voltage to the S+ and S– terminals. These
sensing connections should b e routed as a differential pair,
preferably between ground planes which are not carrying high
currents. The routing should avoid ar eas of high electric or
magnetic fields.
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
54
Ericsson Internal
PRODUCT SPECIFICATION 15 (18)
Prepared (also subject responsible if other) No.
EAB/FJB/GMD EHOSMIR 30/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF (Ksenia Harrisen) (EKRIROB) 2014-05-02 E
Typical Application Circuit (Lay Down version)
Standalone operation with PMBus communication. Top view of product footprint.
1A, 1B
2A, 2B
3A, 3B
4A 4B
10A 10B
BMR 464
+V
IN
Load
GND
+V
CTRL 3.3
-
5.0 V
SDA
SCL
SALERT
DGND
C
O
C
I
5A
6A
7A
8A
9A
5B
6B
7B
8B
9B
R
SET
R
SA0
R
SA1
R
PU1
R
PU2
R
PU3
GND
R
PU4
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
55
Ericsson Internal
PRODUCT SPECIFICATION 16 (18)
Prepared (also subject responsible if other) No.
EAB/FJB/GMD EHOSMIR 30/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF (Ksenia Harrisen) (EKRIROB) 2014-05-02 E
Typical Application Circuit (SIP version)
Standalone operation with PMBus communication. Top view of product footprint.
1A
1B
2A
2B
3A
3B
4A4B
10A10B
BMR 464
+V
IN
Load
GND
+V
CTRL
3.3
-
5.0 V
SDA
SCL
SALERT
DGND
C
O
C
I
5A
6A
7A
8A
9A
5B
6B
7B
8B
9B
R
SET
R
SA0
R
SA1
R
PU1
R
PU2
R
PU3
GND
R
PU4
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
56
Ericsson Internal
PRODUCT SPECIFICATION 17 (18)
Prepared (also subject responsible if other) No.
EAB/FJB/GMD EHOSMIR 30/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GMF (Ksenia Harrisen) (EKRIROB) 2014-05-02 E
Typical Application Circuit – Parallel Operation
Parallel operation.
1A,B
2A,B
3A,B
4A 4B
10A 10B
BMR 464
Vin
GND
3.3-5 V
1A,B
2A,B
3A,B
4A 4B
10A 10B
BMR 464
Load
V1
GND
CTRL
SYNC
GCB
SDA
SCL
SALERT
DGND
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
57
Ericsson Internal
PRODUCT SPECIFICATION 1 (6)
Prepared (also subject responsible if other) No.
EHOSMIR 31/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-02-03 C
PMBus interface
This product provides a PMBus digital interfa ce that enables
the user to configure many aspects of the device operation as
well as to monitor the input and output voltages, output current
and device temperature. The product can be used with any
standard two-wire I2C or SMBus host devic e. In addition, the
product is compatible with PMBus version 1.1 and includes an
SALERT line to help mitigate bandwidth limitations related to
continuous fault monitoring. The product supports 100 kHz
bus clock frequency onl y. The PMBus signals, SCL, SDA and
SALERT require passive pull-up resistors as stated in the
SMBus Specification. Pull-up resistors are required to
guarantee the rise time as follows:
Eq. 6. sCR pp
1
where Rp is the pull-up resistor value and Cp is the bus
loading, the maximum allowed bus load is 400 pF. The pull- up
resistor should be tied to an external supply voltage in range
from 2.7 to 5.5 V, which should be present prior to or during
power-up. If the proper power supply is not available, voltage
dividers may be applied. Note that in this case, the resistance
in the equation above corresponds to parallel connection of
the resistors forming the voltage divider.
See application note AN304 for details on interfacin g the
product with a microcontroller.
Monitoring via PMBus
It is possible to monitor a wide variety of parameters throug h
the PMBus interface. Fault conditions can be monitore d using
the SALERT pin, which will be asserted when any number of
pre-configured fault or warning conditions occurs. It is also
possible to continuousl y monitor one or more of the power
conversion parameters includ ing but not limited to the
following:
Input voltage (READ_VIN)
Output voltage (READ_VOUT)
Output current (READ_IOUT)
Internal junction temperature (READ_TEMPERATURE_1)
Switching frequenc y (READ_FREQUENCY)
Duty cycle (READ_DUTY_CYCLE)
In the default configuration monitoring is enabled also when
the output voltage is disabled. T his can be chan ged in order to
reduce standby power consumption.
Snap shot parameter capture
This product offers a special feature that enables the us er to
capture parametric data during normal operation or following a
fault. The following paramete r s are stored:
Input voltage
Output voltage
Output current
Internal junction temperatur e
Switching frequency
Duty cycle
Status registers
The Snapshot feature enables the user to read the parameters
via the PMBus interface during normal opera t ion, although it
should be noted that reading the 22 bytes will occupy the bus
for some time. The Snapshot enables the user to store the
snapshot parameters to Flash memory in response to a
pending fault as well as to read the stored data from Flash
memory after a fault has occurred. Automatic store to Flash
memory following a fault is triggered when any fault threshold
level is exceeded, provided that the specific fault resp onse is
to shut down. Writing to Flash memory is not allowed if the
device is configured to restart following the specific fault
condition. It should also be noted that the device supply
voltage must be maintained during the time the device is
writing data to Flash memory; a process that requires between
700-1400 μs depe nding on whether the data is set up for a
block write. Undesirable results may be observed if the input
voltage of the product drops below 3.0 V during this process.
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
58
Ericsson Internal
PRODUCT SPECIFICATION 2 (6)
Prepared (also subject responsible if other) No.
EHOSMIR 31/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-02-03 C
Non-Volatile Memory (NVM)
The product incorporates two Non-Volatile Memory areas for
storage of the supported PMBus command s; the Default NVM
and the User NVM.
The Default NVM is pre-loaded with Ericsson factory default
values. The Default NVM is write-protected and can be used
to restore the Ericsson factory default values through the
command RESTORE_DEFAULT_ALL.
The User NVM is pre-loaded with Ericsson factory default
values. The User NVM is writable and open for customization.
The values in NVM are loade d into operational RAM during
initialization according to section “Initialization Proced ure”,
where after commands can be changed thro ugh the PMBus
Interface. The STORE_USER_ALL command will store the
changed parameters to the User NVM.
Software tools for design and production
Ericsson provides software tools for configuration and
monitoring of this product via the PMBus interface.
For more information please cont act your local Ericsson sales
representative.
PMBus addressing
The PMBus address should be config ured with resistors
connected between the SA0/SA1 pins and the PREF pin, as
shown in the figure below. Recommended resistor values for
hard-wiring PMBus addresses are shown in the table. 1%
tolerance resistors are required.
Schematic of connection of address resistor.
Index RSA [k] Index RSA [k]
010 13 34.8
1 11 14 38.3
2 12.1 15 42.2
3 13.3 16 46.4
4 14.7 17 51.1
5 16.2 18 56.2
6 17.8 19 61.9
7 19.6 20 68.1
8 21.5 21 75
9 23.7 22 82.5
10 26.1 23 90.9
11 28.7 24 100
12 31.6
The PMBus address follo ws the equation b elow:
Eq. 7. PMBus Address (decimal) = 25 x (SA1 index) +
(SA0 index)
The user can theoretically configure up to 625 uniq ue PMBus
addresses, however the PMBus address ran ge is inherently
limited to 128. Therefore, the user should use index values 0 -
4 on the SA1 pin and the full range of ind ex values on the SA0
pin, which will provide 125 device address combinations. T he
user shall also be aware of further limitations of the address
space as stated in the SMBus Specification.
Note that address 0x4B is allocated for production needs and
cannot be used.
User NVM
Ericsson factory default
Customizable
RAM
Default NVM
Ericsson factory default
Write-protected RESTORE_DEFAULT_ALL
WRITE
READ
PMBus interface
STORE_USER_ALL
INITIALIZATION
INITIALIZATION
SA0
SA1
PREF
RSA1 RSA0
RESTORE USER ALL
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
59
Ericsson Internal
PRODUCT SPECIFICATION 3 (6)
Prepared (also subject responsible if other) No.
EHOSMIR 31/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-02-03 C
Optional PMBus Addressing
A
lternatively the PMBus addr ess can be defined by
connecting the SA0/SA1 pins according to the table b el ow.
SA1 = open for products with no SA1 pin.
SA0
low open high
SA1
low 20h 21h 22h
open 23h 24h 25h
high 26h 27h Reserved
Low = Shorted to PREF
Open = High impedance
High = Logic high, GND as reference,
Logic High definitions see Electrical Specification
Reserved Addresses
A
ddress 4Bh is allocated for p r oduction needs and cannot be
used.
A
ddresses listed in the table below are reserved or assigned
according to the SMBus specification and ma y not be usable.
Refer to the SMBus specification for further information.
Address
(decimal) Comment
0 General Call Address / START byte
1 CBUS address
2 Address reserved for different bus format
3-7 Reserved for future use
8 SMBus Host
9-11 Assigned for Smart Battery
12 SMBus Alert Response Address
40 Reserved for ACCESS.bus host
44-45 Reserved by pr evious versions of the SMBus
specification
55 Reserved for ACCESS.bus default address
64-68 Reserved by pr evious versions of the SMBus
specification
72-75 Unrestricted addresses
97 SMBus Device Default Address
120-123 10-bit slave addressing
124-127 Reserved for future use
I
2
C/SMBus – Timing
Setup and hold times timing diagram
The setup time, tset, is the time data, SDA, must be stable
before the rising edge of the clock signal, SCL. The hold time
thold, is the time data, SDA, must be stable after the rising edge
of the clock signal, SCL. If these times are violated incorrect
data may be captured or meta-stability may occur and the bus
communication may fail. When configuring the pro duct, all
standard SMBus protocols must be followed, including clock
stretching. Refer to the SMBus specification, for SMBus
electrical and timing requirements.
This product does not support the BUSY flag in the status
commands to indicate product being too busy for SMBus
response. Instead a bus-free time delay accordi ng to this
specification must occur between every SMBus transmission
(between every stop & start condition). In case of storing the
RAM content into the internal non-volatile memory (commands
STORE_USER_ALL and STORE_DEFAULT_ALL) an
additional delay of 100 ms ha s to be inserted. A 100 ms delay
should be inserted after a restore from internal no n-volatile
memory (commands RESTORE_DEFAULT_ALL and
RESTORE_USER_ALL).
SCL
SDA
t
set
t
hold
VIH
VIL
VIH
VIL
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
60
Ericsson Internal
PRODUCT SPECIFICATION 4 (6)
Prepared (also subject responsible if other) No.
EHOSMIR 31/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-02-03 C
PMBus Commands
The products are PMBus compliant. The following table lists
the implemented PMBus read commands. For more detailed
information see PMBus Power System Management Proto col
Specification; Part I – General Requir ements, Transport and
Electrical Interface and PMBus Power System Management
Protocol; Part II – Command Language.
Designation Cmd Impl
Standard PMBus Commands
Control Commands
PAGE 00h No
OPERATION 01h Yes
ON_OFF_CONFIG 02h Yes
WRITE_PROTECT 10h No
Output Commands
VOUT_MODE (Read Only) 20h Yes
VOUT_COMMAND 21h Yes
VOUT_TRIM 22h Yes
VOUT_CAL_OFFSET 23h Yes
VOUT_MAX 24h Yes
VOUT_MARGIN_HIGH 25h Yes
VOUT_MARGIN_LOW 26h Yes
VOUT_TRANSITION_RATE 27h Yes
VOUT_DROOP 28h Yes
MAX_DUTY 32h Yes
FREQUENCY_SWITCH 33h Yes
VIN_ON 35h No
VIN_OFF 36h No
IOUT_CAL_GAIN 38h Yes
IOUT_CAL_OFFSET 39h Yes
VOUT_SCALE_LOOP 29h No
VOUT_SCALE_MONITOR 2Ah No
COEFFICIENTS 30h No
Fault Limit Commands
POWER_GOOD_ON 5Eh Yes
POWER_GOOD_OFF 5Fh No
VOUT_OV_FAULT_LIMIT 40h Yes
VOUT_OV_WARN_LIMIT 42h No
VOUT_UV_WARN_LIMIT 43h No
VOUT_UV_FAULT_LIMIT 44h Yes
IOUT_OC_FAULT_LIMIT 46h Yes
IOUT_OC_WARN_LIMIT 4Ah No
IOUT_UC_FAULT_LIMIT 4Bh Yes
Designation Cmd Impl
OT_FAULT_LIMIT 4Fh Yes
OT_WARN_LIMIT 51h Yes
UT_WARN_LIMIT 52h Yes
UT_FAULT_LIMIT 53h Yes
VIN_OV_FAULT_LIMIT 55h Yes
VIN_OV_WARN_LIMIT 57h Yes
VIN_UV_WARN_LIMIT 58h Yes
VIN_UV_FAULT_LIMIT 59h Yes
Fault Response Commands
VOUT_OV_FAULT_RESPONSE 41h Yes
VOUT_UV_FAULT_RESPONSE 45h Yes
OT_FAULT_RESPONSE 50h Yes
UT_FAULT_RESPONSE 54h Yes
VIN_OV_FAULT_RESPONSE 56h Yes
VIN_UV_FAULT_RESPONSE 5Ah Yes
IOUT_OC_FAULT_RESPONSE 47h No
IOUT_UC_FAULT_RESPONSE 4Ch No
Time setting Commands
TON_DELAY 60h Yes
TON_RISE 61h Yes
TOFF_DELAY 64h Yes
TOFF_FALL 65h Yes
TON_MAX_FAULT_LIMIT 62h No
Status Commands (Read Only)
CLEAR_FAULTS 03h Yes
STATUS_BYTE 78h Yes
STATUS_WORD 79h Yes
STATUS_VOUT 7Ah Yes
STATUS_IOUT 7Bh Yes
STATUS_INPUT 7Ch Yes
STATUS_TEMPERATURE 7Dh Yes
STATUS_CML 7Eh Yes
STATUS_MFR_SPECIFIC 80h Yes
Monitor Commands (Read Only
READ_VIN 88h Yes
READ_VOUT 8Bh Yes
READ_IOUT 8Ch Yes
READ_TEMPERATURE_1 8Dh Yes
READ_TEMPERATURE_2 8Eh No
READ_FAN_SPEED_1 90h No
READ_DUTY_CYCLE 94h Yes
READ_FREQUENCY 95h Yes
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
61
Ericsson Internal
PRODUCT SPECIFICATION 5 (6)
Prepared (also subject responsible if other) No.
EHOSMIR 31/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (EKRIROB) 2014-02-03 C
Designation Cmd Impl
Group Commands
INTERLEAVE 37h Yes
PHASE_CONTROL F0h Yes
Identification Commands
PMBUS_REVISION 98h Yes
MFR_ID 99h Yes
MFR_MODEL 9Ah Yes
MFR_REVISION 9Bh Yes
MFR_LOCATION 9Ch Yes
MFR_DATE 9Dh Yes
MFR_SERIAL 9Eh Yes
Supervisory Commands
STORE_DEFAULT_ALL 11h Yes
RESTORE_DEFAULT_ALL 12h Yes
STORE_USER_ALL 15h Yes
RESTORE_USER_ALL 16h Yes
Product Specific Commands
Output Commands
XTEMP_SCALE D9h No
XTEMP_OFFSET DAh No
Time Setting Commands
POWER_GOOD_DELAY D4h Yes
Fault limit Commands
IOUT_AVG_OC_FAULT_LIMIT E7h Yes
IOUT_AVG_UC_FAULT_LIMIT E8h Yes
Fault Response Commands
MFR_IOUT_OC_FAULT_RESPONSE E5h Yes
MFR_IOUT_UC_FAULT_RESPONSE E6h Yes
OVUV_CONFIG D8h Yes
Configuration and Control Commands
MFR_CONFIG D0h Yes
USER_CONFIG D1h Yes
MISC_CONFIG E9h Yes
TRACK_CONFIG E1h Yes
PID_TAPS D5h Yes
PID_TAPS_CALC
*
F2h Yes
INDUCTOR D6h Yes
NLR_CONFIG D7h Yes
TEMPCO_CONFIG DCh Yes
IOUT_OMEGA_OFFSET
*
BEh Yes
AUTO_COMP_CONTROL
**
BDh Yes
AUTO_COMP_CONFIG
**
BCh Yes
DEADTIME DDh Yes
DEADTIME_CONFIG DEh Yes
DEADTIME_MAX BFh Yes
SNAPSHOT EAh Yes
SNAPSHOT_CONTROL F3h Yes
DEVICE_ID E4h Yes
USER_DATA_00 B0h Yes
Group Commands
SEQUENCE E0h Yes
GCB_CONFIG D3h Yes
GCB_GROUP E2h Yes
ISHARE_CONFIG D2h Yes
PHASE_CONTROL F0h Yes
Supervisory Commands
PRIVATE_PASSWORD FBh Yes
PUBLIC_PASSWORD FCh Yes
UNPROTECT FDh Yes
SECURITY_LEVEL FAh Yes
Notes:
Cmd is short for Command.
Impl is short for Implemented.
* These commands are availa ble in products without DLC.
** These commands are availab le in products with DLC.
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
62
Ericsson Internal
PRODUCT SPEC. MECHANICAL
1 (3)
Prepared (also subject responsible if other)
No.
EPEIHLI/EPETSCH 4/1301-BMR 464 0002 Ue n
Approved
Checked
Date
Rev
Reference
SEC/D (Julia You)
See §1
2013-11-18
D
Mechanical Information - Hole M ount, Open Frame Version
All component placements – whether shown as physical components or symbolical outline – are for reference only and are subject to change throughout the product’s life cycle,
unless explicitly described and dimensioned in this drawing.
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
63
Ericsson Internal
PRODUCT SPEC. MECHANICAL
2 (3)
Prepared (also subject responsible if other)
No.
EPEIHLI/EPETSCH 4/1301-BMR 464 0002 Ue n
Approved
Checked
Date
Rev
Reference
SEC/D (Julia You)
See §1
2013-11-18
D
Mechanical Information - Surface Mount Version
All component placements – whether shown as physical components or symbolical outline – are for reference only and are subject to change throughout the product’s life cycle,
unless explicitly described and dimensioned in this drawing.
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
64
E ri cs son Int ernal
PRODUC T SPEC. MEC HANICAL
1 (2)
Prepared (also subject responsible if other)
No.
EPEIHLI
4/1301 - BMR 464 2002 Uen
Approved
Chec ked
Date
Rev
Reference
S EC/ D (Juli a Y ou)
S ee §1
2014-02-25
E
Tem pl ate Rev F
Mechanical Information – SIP
All co mponen t placemen ts – whether s hown as phy s ic al c om ponent s or sy m bolic al out line – are f or referenc e only and are s ubject t o c hange throughout the product’s life cy c le,
unles s ex plici tl y des crib ed and dim ensioned i
n this drawing.
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
65
Ericsson Internal
PRODUCT SPEC.
1 (4)
Prepared (also subject responsible if other)
No.
EAB/FJB/GM Peter Schurmann
5/1301-BMR 464 0002 Uen
Approved
Checked
Date
Rev
Reference
EAB/FJB/GM [Ksenia Harrisen]
See §1
2013-10-31
B
Template rev. J
Soldering Information - Surface Mounting and Hole
Mount through Pin in Paste Assembly
The product is intended for forced convection or vapor phase
reflow soldering in SnPb or Pb-free processes.
The reflow profile should be optimised to avoid excessive
heating of the product. It is recommended to have a sufficiently
extended preheat time to ensure an even temperature across
the host PWB and it is also recommended to minimize the time
in reflow.
A no-clean flux is recommended to avoid entrapment of
cleaning fluids in cavities inside the product or between the
product and the host board, since cleaning residues may affect
long time reliability and isolation voltage.
General reflow process specifications
SnPb eutectic
Pb-free
Average ramp-up (TPRODUCT)
3°C/s max
3°C/s max
Typical solder melting (liquidus)
temperature
TL
183°C
221°C
Minimum reflow time above TL
60 s
60 s
Minimum pin temperature
TPIN
210°C
235°C
Peak product temperature
TPRODUCT
225°C
260°C
Average ramp-down (TPRODUCT)
6°C/s max
6°C/s max
Maximum time 25°C to peak
6 minutes
8 minutes
TPRODUCT maximum
TPIN minimum
Time
Pin
profile
Product
profile
TL
Time in
reflow
Time in preheat
/ soak zone
Time 25°C to peak
Temperature
Minimum Pin Temperature Recommendations
Pin number 2B is chosen as reference location for the
minimum pin temperature recommendation since this will likely
be the coolest solder joint during the reflow process.
SnPb solder processes
For SnPb solder processes, a pin temperature (TPIN) in excess
of the solder melting temperature, (TL, 183°C for Sn63Pb37) for
more than 60 seconds and a peak temperature of 220°C is
recommended to ensure a reliable solder joint.
For dry packed products only: depending on the type of solder
paste and flux system used on the host board, up to a
recommended maximum temperature of 245°C could be used,
if the products are kept in a controlled environment (dry pack
handling and storage) prior to assembly.
Lead-free (Pb-free) solder processes
For Pb-free solder processes, a pin temperature (TPIN) in
excess of the solder melting temperature (TL, 217 to 221°C for
SnAgCu solder alloys) for more than 60 seconds and a peak
temperature of 245°C on all solder joints is recommended to
ensure a reliable solder joint.
Maximum Product Temperature Requirements
Top of the product PWB near pin 10B is chosen as reference
location for the maximum (peak) allowed product temperature
(TPRODUCT) since this will likely be the warmest part of the
product during the reflow process.
SnPb solder processes
For SnPb solder processes, the product is qualified for MSL 1
according to IPC/JEDEC standard J-STD-020C.
During reflow TPRODUCT must not exceed 225 °C at any time.
Pb-free solder processes
For Pb-free solder processes, the product is qualified for MSL 3
according to IPC/JEDEC standard J-STD-020C.
During reflow TPRODUCT must not exceed 260 °C at any time.
Dry Pack Information
Products intended for Pb-free reflow soldering processes are
delivered in standard moisture barrier bags according to
IPC/JEDEC standard J-STD-033 (Handling, packing, shipping
and use of moisture/reflow sensitivity surface mount devices).
Using products in high temperature Pb-free soldering
processes requires dry pack storage and handling. In case the
products have been stored in an uncontrolled environment and
no longer can be considered dry, the modules must be baked
according to J-STD-033.
Thermocoupler Attachment
Pin 10B for measurement of maximum
Product temperature TPRODUCT
Pin 2B for measurement of minimum Pin (solder joint)
temperature TPIN
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
66
Ericsson Internal
PRODUCT SPEC.
2 (4)
Prepared (also subject responsible if other)
No.
EAB/FJB/GM Peter Schurmann
5/1301-BMR 464 0002 Uen
Approved
Checked
Date
Rev
Reference
EAB/FJB/GM [Ksenia Harrisen]
See §1
2013-10-31
B
Template rev. J
Soldering Information - Hole Mounting
The hole mounted product is intended for plated through hole
mounting by wave or manual soldering. The pin temperature is
specified to maximum to 270°C for maximum 10 seconds.
A maximum preheat rate of 4°C/s and maximum preheat
temperature of 150°C is suggested. When soldering by hand,
care should be taken to avoid direct contact between the hot
soldering iron tip and the pins for more than a few seconds in
order to prevent overheating.
A no-clean flux is recommended to avoid entrapment of
cleaning fluids in cavities inside the product or between the
product and the host board. The cleaning residues may affect
long time reliability and isolation voltage.
Delivery Package Information
The products are delivered in antistatic carrier tape
(EIA 481 standard).
Carrier Tape Specifications
Material
Antistatic PS
Surface resistance
<107Ohm/square
Bakeability
The tape is not bakable
Tape width, W
56 mm [2.20 inch]
Pocket pitch, P1
32 mm [1.26 inch]
Pocket depth, K0
13 mm [0.51 inch]
Reel diameter
381 mm [15 inch]
Reel capacity
130 products /reel
Reel weight
1.8 kg/full reel
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
67
Ericsson Internal
PRODUCT SPEC.
1 (3)
Prepared (also subject responsible if other)
No.
EAB/FJB/GM Peter Schurmann
5/1301 - BMR 464 2002 Uen
Approved
Checked
Date
Rev
Reference
EAB/FJB/GM [Ksenia Harrisen]
See §1
2013-11-05
D
Template rev. J
Soldering Information - Hole Mounting (SIP version)
The product is intended for plated through hole mounting by
wave or manual soldering. The pin temperature is specified to
maximum to 270°C for maximum 10 seconds.
A maximum preheat rate of 4°C/s and maximum preheat
temperature of 150°C is suggested. When soldering by hand,
care should be taken to avoid direct contact between the hot
soldering iron tip and the pins for more than a few seconds in
order to prevent overheating.
A no-clean flux is recommended to avoid entrapment of
cleaning fluids in cavities inside the product or between the
product and the host board. The cleaning residues may affect
long time reliability and isolation voltage.
Delivery Package Information (SIP version)
The products are delivered in antistatic trays
Tray Specifications
Material
Antistatic Polyethylene foam
Surface resistance
105< Ohms/square <1011
Bakability
The trays are not bakeable
Tray thickness
15 mm [ 0.709 inch]
Box capacity
100 products, 2 full trays/box)
Tray weight
35 g empty tray, 549 g full tray
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
68
Ericsson Internal
PRODUCT SPEC.
2 (3)
Prepared (also subject responsible if other)
No.
EAB/FJB/GM Peter Schurmann
5/1301 - BMR 464 2002 Uen
Approved
Checked
Date
Rev
Reference
EAB/FJB/GM [Ksenia Harrisen]
See §1
2013-11-05
D
Template rev. J
Product Qualification Specification
Characteristics
External visual inspection
IPC-A-610
Change of temperature
(Temperature cycling)
IEC 60068-2-14 Na
Temperature range
Number of cycles
Dwell/transfer time
-40 to 100°C
1000
15 min/0-1 min
Cold (in operation)
IEC 60068-2-1 Ad
Temperature TA
Duration
-45°C
72 h
Damp heat
IEC 60068-2-67 Cy
Temperature
Humidity
Duration
85°C
85 % RH
1000 hours
Dry heat
IEC 60068-2-2 Bd
Temperature
Duration
125°C
1000 h
Electrostatic discharge
susceptibility
IEC 61340-3-1, JESD 22-A114
IEC 61340-3-2, JESD 22-A115
Human body model (HBM)
Machine Model (MM)
Class 2, 2000 V
Class 3, 200 V
Immersion in cleaning solvents
IEC 60068-2-45 XA, method 2
Water
Glycol ether
55°C
35°C
Mechanical shock
IEC 60068-2-27 Ea
Peak acceleration
Duration
100 g
6 ms
Moisture reflow sensitivity 1
J-STD-020C
Level 1 (SnPb-eutectic)
Level 3 (Pb Free)
225°C
260°C
Operational life test
MIL-STD-202G, method 108A
Duration
1000 h
Resistance to soldering heat 2
IEC 60068-2-20 Tb, method 1A
Solder temperature
Duration
270°C
10-13 s
Robustness of terminations
IEC 60068-2-21 Test Ua1
IEC 60068-2-21 Test Ue1
Through hole mount products
Surface mount products
All leads
All leads
Solderability
IEC 60068-2-58 test Td 1
IEC 60068-2-20 test Ta 2
Preconditioning
Temperature, SnPb Eutectic
Temperature, Pb-free
Preconditioning
Temperature, SnPb Eutectic
Temperature, Pb-free
150°C dry bake 16 h
215°C
235°C
Steam ageing
235°C
245°C
Vibration, broad band random
IEC 60068-2-64 Fh, method 1
Frequency
Spectral density
Duration
10 to 500 Hz
0.07 g2/Hz
10 min in each direction
Notes
1 Only for products intended for reflow soldering (surface mount products)
2 Only for products intended for wave soldering (plated through hole products)
E
BMR464 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W EN/LZT 146 435 R4B May 2014
© Ericsson AB
Technical Specification
69
