Ericsson Internal
PRODUCT SPECIFICATION 1 (4)
Prepared (also subject responsible if other) No.
EAB/FC/P Jacub Brindell 1/1301- BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FC/P Jacub Brindell MICHEBO 2008-08-25 C
Key Features
• Industry standard Quarter-brick
57.9 x 36.8 x 11.6 mm (2.28 x 1.45 x 0.46 in.)
• High efficiency, typ. 96 % at half load, 12 Vout
• +/- 2% output voltage tolerance band
• 1500 Vdc input to output isolation
• 1.1 million hours MTBF
• Optional baseplate
• ISO 9001/14001 certified supplier
• PMBus Revision 1.1 compliant
Power Management
• Configurable soft start/stop
• Precision delay and ramp-up
• Voltage sequencing and margining
• Voltage/current/temperature monitoring
• Configurable output voltage
• Power good
• Synchronization
• Voltage track
Safety Approvals Design for Environment
Meets requirements in high-
temperature lead-free soldering
processes.
Ericsson Internal
TABLE OF CONTENTS 2 (2)
Prepared (also subject responsible if other) No.
EAB/FC/P Jakub Brindell 0/1301-BMR 911 483/1
Approved Checked Date Rev Reference
EAB/FC/P Jakub Brindell EJAKBRI 2008-09-03 B
Contents
General Information ............................................................. 2
Safety Specification ............................................................. 3
Absolute Maximum Ratings ............................................................. 4
Functional Description ............................................................. 5
Product Program Ordering No.
9 V, 33 A / 300 W - Electrical Specification BMR 453............................................... 6
12 V, 33 A / 400 W - Electrical Specification BMR 453............................................... 9
EMC Specification ........................................................... 12
Operating Information ........................................................... 13
Thermal considerations ........................................................... 15
Connections ........................................................... 16
PMBus communications ........................................................... 17
Mechanical Information ........................................................... 20
Soldering Information ........................................................... 22
Delivery Information ........................................................... 22
Product Qualification Specification ........................................................... 23
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
Ericsson Internal
PRODUCT SPECIFICATION 2 (4)
Prepared (also subject responsible if other) No.
EAB/FC/P Jacub Brindell 1/1301- BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FC/P Jacub Brindell MICHEBO 2008-08-25 C
General Information
Ordering Information
Number Description
BMR453
n1
n2
n3 n4
n5 n6 n7
Default
0 = Standard pin length 5.33 mm
2 = Lead length 3.69 mm (cut)
3 = Lead length 4.57 mm (cut)
4 = Lead length 2.79 mm (cut)
5 = Lead length 2.79 mm stand off 6.7mm
0 = Open frame
1 = Baseplate
00 = With digital interface
01 = Without digital interface
001 = 12V Default configuration variant
002 = 9V Default configuration variant
As an example an open frame, 3.69 mm pin length with digital interface with
configuration variant 002 would be BMR4532000/002.
Reliability
The Mean Time Between Failure (MTBF) is calculated at full
output power and an operating ambient temperature (TA) of
+40°C, which is a typical condition in Information and
Communication Technology (ICT) equipment. Different
methods could be used to calculate the predicted MTBF
and failure rate which may give different results. Ericsson
Power Modules currently uses Telcordia SR332.
Predicted MTBF for the series is:
- 1.1 million hours according to Telcordia SR332, issue
1, Black box technique.
Telcordia SR332 is a commonly used standard method
intended for reliability calculations in ICT equipment. The
parts count procedure used in this method was originally
modelled on the methods from MIL-HDBK-217F, Reliability
Predictions of Electronic Equipment. It assumes that no
reliability data is available on the actual units and devices
for which the predictions are to be made, i.e. all predictions
are based on generic reliability parameters.
Compatibility with RoHS requirements
The products are compatible with the relevant clauses and
requirements of the RoHS directive 2002/95/EC and have a
maximum concentration value of 0.1% by weight in
homogeneous materials for lead, mercury, hexavalent
chromium, PBB and PBDE and of 0.01% by weight in
homogeneous materials for cadmium.
Exemptions in the RoHS directive utilized in Ericsson
Power Modules products include:
- Lead in high melting temperature type solder (used to
solder the die in semiconductor packages)
- Lead in glass of electronics components and in
electronic ceramic parts (e.g. fill material in chip
resistors)
- Lead as an alloying element in copper alloy containing
up to 4% lead by weight (used in connection pins
made of Brass)
Quality Statement
The products are designed and manufactured in an
industrial environment where quality systems and methods
like ISO 9000, 6σ (sigma), and SPC are intensively in use to
boost the continuous improvements strategy. Infant
mortality or early failures in the products are screened out
and they are subjected to an ATE-based final test.
Conservative design rules, design reviews and product
qualifications, plus the high competence of an engaged
work force, contribute to the high quality of our products.
Warranty
Warranty period and conditions are defined in Ericsson
AB’s General Terms and Conditions of Sale. Ericsson AB
does not make any other warranties, expressed or implied
including any warranty of merchantability, effects of
product configurations made by customers or fitness for a
particular purpose.
© Ericsson AB 2008
The information and specifications in this technical
specification is believed to be correct at the time of
publication. However, no liability is accepted for
inaccuracies, printing errors or for any consequences
thereof. Ericsson AB reserves the right to change the
contents of this technical specification at any time without
prior notice.
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
2
Ericsson Internal
PRODUCT SPECIFICATION 3 (4)
Prepared (also subject responsible if other) No.
EAB/FC/P Jacub Brindell 1/1301- BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FC/P Jacub Brindell MICHEBO 2008-08-25 C
Safety Specification
General information
Ericsson Power Modules DC/DC converters and DC/DC
regulators are designed in accordance with safety
standards IEC/EN/UL60950, Safety of Information
Technology Equipment.
IEC/EN/UL60950 contains requirements to prevent injury
or damage due to the following hazards:
• Electrical shock
• Energy hazards
• Fire
• Mechanical and heat hazards
• Radiation hazards
• Chemical hazards
On-board DC-DC converters and DC/DC regulators are
defined as component power supplies. As components
they cannot fully comply with the provisions of any Safety
requirements without “Conditions of Acceptability”.
Clearance between conductors and between conductive
parts of the component power supply and conductors on
the board in the final product must meet the applicable
Safety requirements. Certain conditions of acceptability
apply for component power supplies with limited stand-off
(see Mechanical Information for further information). It is
the responsibility of the installer to ensure that the final
product housing these components complies with the
requirements of all applicable Safety standards and
Directives for the final product.
Component power supplies for general use should comply
with the requirements in IEC60950, EN60950 and
UL60950 “Safety of information technology equipment”.
There are other more product related standards, e.g.
IEEE802.3af “Ethernet LAN/MAN Data terminal equipment
power”, and ETS300132-2 “Power supply interface at the
input to telecommunications equipment; part 2: DC”, but
all of these standards are based on IEC/EN/UL60950 with
regards to safety.
Ericsson Power Modules DC/DC converters and DC/DC
regulators are UL60950 recognized and certified in
accordance with EN60950.
The flammability rating for all construction parts of the
products meets requirements for V-0 class material
according to IEC 60695-11-10.
The products should be installed in the end-use
equipment, in accordance with the requirements of the
ultimate application. Normally the output of the DC/DC
converter is considered as SELV (Safety Extra Low
Voltage) and the input source must be isolated by
minimum Double or Reinforced Insulation from the primary
circuit (AC mains) in accordance with IEC/EN/UL60950.
Isolated DC/DC converters
It is recommended that a slow blow fuse with a rating
twice the maximum input current per selected product be
used at the input of each DC/DC converter. If an input filter
is used in the circuit the fuse should be placed in front of
the input filter.
In the rare event of a component problem in the input filter
or in the DC/DC converter that imposes a short circuit on
the input source, this fuse will provide the following
functions:
• Isolate the faulty DC/DC converter from the input
power source so as not to affect the operation of
other parts of the system.
• Protect the distribution wiring from excessive
current and power loss thus preventing
hazardous overheating.
The galvanic isolation is verified in an electric strength test.
The test voltage (Viso) between input and output is
1500 Vdc or 2250 Vdc for 60 seconds (refer to Absolute
maximum ratings).
Leakage current is less than 1 μA at nominal input voltage.
24 V DC systems
The input voltage to the DC/DC converter is SELV (Safety
Extra Low Voltage) and the output remains SELV under
normal and abnormal operating conditions.
48 and 60 V DC systems
If the input voltage to the DC/DC converter is 75 Vdc or
less, then the output remains SELV (Safety Extra Low
Voltage) under normal and abnormal operating conditions.
Single fault testing in the input power supply circuit should
be performed with the DC/DC converter connected to
demonstrate that the input voltage does not exceed
75 Vdc.
If the input power source circuit is a DC power system, the
source may be treated as a TNV2 circuit and testing has
demonstrated compliance with SELV limits and isolation
requirements equivalent to Basic Insulation in accordance
with IEC/EN/UL60950.
Non-isolated DC/DC regulators
The input voltage to the DC/DC regulator is SELV (Safety
Extra Low Voltage) and the output remains SELV under
normal and abnormal operating conditions.
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
3
Ericsson Internal
PRODUCT SPECIFICATION 1 (9)
Prepared (also subject responsible if other) No.
EANDKUL 2/1301-BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FJB/GKF (Natalie Johansson) (MICJMAL) 2008-06-18 A
Absolute Maximum Ratings
Characteristics min typ max Unit
T
ref
Operating Temperature (see Thermal Consideration section) -40 +125 °C
T
S
Storage temperature -55 +125 °C
V
I
Input voltage -0.5 +80 V
V
iso
Isolation voltage (input to output test voltage), see note 1 1500 Vdc
V
tr
Input voltage transient (Tp 100 ms) 100 V
V
RC
Remote Control pin voltage -0.3 18 V
V
Logic SALERT, CTRL, SYNC, SCL, SDA, SA(0,1) -0.3 3.6 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 of Output data or Electrical Characteristics. If exposed to stress above these limits, function and
performance may degrade in an unspecified manner.
Note 1: Isolation voltage (input/output to base-plate) max 750Vdc.
Fundamental Circuit Diagram
-IN
+IN
+OUT
-OUT
Driver
Driver
Control
RC isolation
Auxillary
Supply
RC
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
4
Ericsson Internal
PRODUCT SPECIFICATION 2 (9)
Prepared (also subject responsible if other) No.
EANDKUL 2/1301-BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FJB/GKF (Natalie Johansson) (MICJMAL) 2008-06-18 A
Functional Description
T
ref
= -40 to +90ºC, V
I
= 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: T
ref
= +25°C, V
I
= 53 V, max I
O
, unless otherwise specified under Conditions
Configuration File: 190 10-CDA 102 935/001 rev B
Characteristics Conditions min typ max Unit
PMBus monitoring
VIN_READ, 0x88h Accuracy vs V
i
-3 +0.4 3 %
VOUT_READ, 0x8Bh Accuracy vs V
O
V
I
= 53 V -1.0 -0.3 1.0 %
IOUT_READ, 0x8Ch Accuracy vs I
O
V
I
= 53 V, 50-100% of max I
O
-6 -1.0 6 %
IOUT_READ, 0x8Ch Accuracy vs I
O
V
I
= 53 V, 10% of max I
O
-20 - 20 %
Fault Protection Characteristics
Factory default - 33 - V
Setpoint accuracy -3 - 3 %
Factory default - 1.8 - V
Hysteresis Configurable via PMBus of
threshold range, Note 1 0 - - V
Input Under
Voltage Lockout,
UVLO
Delay - 200 -
µ
s
Factory default - 0 - V
VOUT_UV_FAULT_LIMIT Configurable via PMBus, Note 1 0 - 16 V
Factory default - 15.6 - V
VOUT_OV_FAULT_LIMIT Configurable via PMBus, Note 1 V
OUT
- 16 V
(Output voltage)
Over/Under Voltage
Protection,
OVP/UVP
fault response time - 200 -
µ
s
Setpoint accuracy Io -6 6 %
Factory default - 39 -
IOUT_OC_FAULT_LIMIT Configurable via PMBus, Note 1 0 - 100 A
Over Current
Protection,
OCP
fault response time - 200 -
µ
s
Factory default - 135 -
OTP_FAULT_LIMIT Configurable via PMBus, Note 1 -50 135
Factory default 10
OTP hysteresis Configurable via PMBus, Note 1 0 165
°C
Over Temperature
Protection,
OTP
fault response time - 200 -
µ
s
Logic Input/Output Characteristics
Logic input low threshold (V
IL
) - - 0.8 V
Logic input high threshold (V
IH
)
CTRL_CS, SA0, SA1, PG_SYNC,
SCL, SDA, 2 - 3.45 V
Logic output low threshold (V
OL
)
CTRL_CS, PG_SYNC, SALERT,
SCL, SDA
I
OL
= 5 mA
- - 0.4 V
Logic output high threshold (V
OH
)
CTRL_CS, PG_SYNC, SALERT,
SCL, SDA
I
OH
= -5 mA
2.8 - - V
Data change from high to low 250 - ns
Setup time, SMBus Data change from low to high 250 ns
Data change from high to low 300 - ns
Hold time, SMBus Data change from low to high 300 ns
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
5
Ericsson Internal
PRODUCT SPECIFICATION 3 (9)
Prepared (also subject responsible if other) No.
EANDKUL 2/1301-BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FJB/GKF (Natalie Johansson) (MICJMAL) 2008-06-18 A
9.0V, 33A / 300W Electrical Specification BMR 453 xxxx/002
T
ref
= -40 to +90ºC, V
I
= 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: T
ref
= +25°C, V
I
= 53 V, max I
O
, unless otherwise specified under Conditions.
Configuration File: 190 10-CDA 102 935/002 rev B
Characteristics Conditions min typ max Unit
V
I
Input voltage range 36 75 V
V
Ioff
Turn-off input voltage Decreasing input voltage 32 33 34 V
V
Ion
Turn-on input voltage Increasing input voltage 34 35 36 V
C
I
Internal input capacitance 18
µ
F
P
O
Output power 0 297 W
50 % of max I
O
96
max I
O
95
50 % of max I
O
, V
I
= 48 V 96
η Efficiency
max I
O
, V
I
= 48 V 95
%
P
d
Power Dissipation max I
O
16.0 24.7 W
P
li
Input idling power I
O
= 0 A, V
I
= 53 V 2.1 W
P
RC
Input standby power V
I
= 53 V (turned off with RC) 190 mW
f
s
Switching frequency 0-100 % of max I
O
140 kHz
V
Oi
Output voltage initial setting and
accuracy T
ref
= +25°C, V
I
= 53 V, I
O
= 33 A 8.90 9.0 9.10 V
Output adjust range See operating information 8.1 13.5 V
Output voltage tolerance band 10-100% of max I
O
8.82 9.18 V
Idling voltage I
O
= 0 A 8.82 9.18 V
Line regulation max I
O
20 50 mV
V
O
Load regulation V
I
= 53 V, 1-100% of max I
O
7 30 mV
V
tr
Load transient
voltage deviation ±0.3 V
t
tr
Load transient recovery time
V
I
= 53 V, Load step 25-75-25 % of
max I
O
, di/dt = 1 A/
µ
s, C
O
= 3.3mF
see Note 1 250 µs
t
r
Ramp-up time
(from 10−90 % of V
Oi
)
8 10 ms
t
s
Start-up time
(from V
I
connection to 90% of V
Oi
)
10-100% of max I
O,
T
ref
= 25ºC, V
I
= 53 V 140 150 ms
max I
O
0.4
m
s
t
f
Vin shutdown fall time
(from V
I
off to 10% of V
O
)
I
O
= 0 A 7 s
RC start-up time max I
O
53 ms
max I
O
3.2 ms
t
RC
RC shutdown fall time
(from RC
off to 10% of V
O
)
I
O
= 0 A 7 s
I
O
Output current 0 33 A
I
lim
Current limit threshold V
O
= 8.1V, T
ref
< max T
ref
34 38 43 A
I
sc
Short circuit current T
ref
= 25ºC, V
O
< 0.2V, see Note 2 19 A
V
Oac
Output ripple & noise See ripple & noise section,
max I
O
, V
Oi
80 170 mVp-p
OVP Over voltage protection T
ref
= +25°C, V
I
= 53 V, 10-100% of
max I
O
15.6 V
Note 1: Output filter according to Ripple & Noise section.
Note 2: RMS current in hiccup mode.
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
6
Ericsson Internal
PRODUCT SPECIFICATION 4 (9)
Prepared (also subject responsible if other) No.
EANDKUL 2/1301-BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FJB/GKF (Natalie Johansson) (MICJMAL) 2008-06-18 A
9.0V, 33A / 300W Electrical Specification
BMR 453 xxxx/002
Efficiency Power Dissipation
75
80
85
90
95
10 0
0 5 10 15 2 0 2 5 3 0 [ A ]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
10
12
14
16
18
20
0 5 10 15 20 25 30 [A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at T
ref
= +25°C Dissipated power vs. load current and input voltage at
T
ref
= +25°C
Output Current Derating, open frame
Output Current Derating, base plate option
0
5
10
15
20
25
30
35
0 20406080100[°C]
[A]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
0
5
10
15
20
25
30
35
0 20406080100[°C]
[A]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Available load current vs. ambient air temperature and airflow at
V
I
= 53 V. See Thermal Consideration section.
Available load current vs. ambient air temperature and airflow at
V
I
= 53 V. See Thermal Consideration section.
Thermal Resistance, base plate option
0
2
4
6
8
0.0 0.5 1.0 1.5 2.0 2.5 3.0 [m/s]
[°C/W]
Thermal resistance vs. airspeed measured at the converter. Tested in
wind tunnel with airflow and test conditions as per
the Thermal consideration section. V
I
= 53 V
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
7
Ericsson Internal
PRODUCT SPECIFICATION 5 (9)
Prepared (also subject responsible if other) No.
EANDKUL 2/1301-BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FJB/GKF (Natalie Johansson) (MICJMAL) 2008-06-18 A
9.0V, 33A / 300W Electrical Specification BMR 453 xxxx/002
Output Characteristics
Current Limit Characteristics
8.90
8.94
8.98
9.02
9.06
9.10
0 5 10 15 20 25 30 [A]
[V]
36 V
48 V
53 V
75 V
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10 . 0 0
33 35 37 39 41 43 45 [A ]
[V]
36 V
53 V
75 V
O
utput voltage vs. load current at T
ref
= +25°C
O
utput voltage vs. load current at I
O
> max I
O
, T
ref
= +25°C
Start-up Start-up Shut-down
Start-up enabled by connecting V
I
at:
T
ref
= +25°C, V
I
= 53 V,
I
O
= 33 A resistive load.
Top trace: output voltage (5 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (50 ms/div.).
Shut-down enabled by disconnecting V
I
at:
T
ref
= +25°C, V
I
= 53 V,
I
O
=33 A resistive load.
Top trace: output voltage (2 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (0.2 ms/div.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at:
T
ref
= +25°C, V
I
= 53 V,
I
O
= 33 A resistive load.
Trace: output voltage (50mV/div.).
Time scale: (5 µs/div.).
Output voltage response to load current step-
change (8.25-24.75-8.25 A) at:
T
ref
=+25°C, V
I
= 53 V.
Top trace: output voltage (0.5 V/div.).
Bottom trace: output current (10A/div.).
Time scale: (0.5 ms/div.).
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
8
Ericsson Internal
PRODUCT SPECIFICATION 6 (9)
Prepared (also subject responsible if other) No.
EANDKUL 2/1301-BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FJB/GKF (Natalie Johansson) (MICJMAL) 2008-06-18 A
12.0V, 33A / 400W Electrical Specification BMR 453 xxxx/001
T
ref
= -40 to +90ºC, V
I
= 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: T
ref
= +25°C, V
I
= 53 V, max I
O
, unless otherwise specified under Conditions.
Configuration File: 190 10-CDA 102 935/001 rev B
Characteristics Conditions min typ max Unit
V
I
Input voltage range 36 75 V
V
Ioff
Turn-off input voltage Decreasing input voltage 32 33 34 V
V
Ion
Turn-on input voltage Increasing input voltage 34 35 36 V
C
I
Internal input capacitance 18
µ
F
P
O
Output power 0 396 W
50 % of max I
O
96.5
max I
O
95.5
50 % of max I
O
, V
I
= 48 V 96.5
η Efficiency
max I
O
, V
I
= 48 V 95.5
%
P
d
Power Dissipation max I
O
18.3 27.1 W
P
li
Input idling power I
O
= 0 A, V
I
= 53 V 2.4 W
P
RC
Input standby power V
I
= 53 V (turned off with RC) 190 mW
f
s
Switching frequency 0-100 % of max I
O
140 kHz
V
Oi
Output voltage initial setting and
accuracy T
ref
= +25°C, V
I
= 53 V, I
O
= 33 A 11.88 12.0 12.12 V
Output adjust range See operating information 8.1 13.5 V
Output voltage tolerance band 10-100% of max I
O
, see Note 1 11.76 12.24 V
Idling voltage I
O
= 0 A, see Note 1 11.76 12.24 V
Line regulation max I
O
, see Note 1 23 65 mV
V
O
Load regulation V
I
= 53 V, 1-100% of max I
O
,
see Note 1 10 40 mV
V
tr
Load transient
voltage deviation ±0.4 V
t
tr
Load transient recovery time
V
I
= 53 V, Load step 25-75-25 % of
max I
O
, di/dt = 1 A/
µ
s, C
O
= 3.3mF
see Note 2 250 µs
t
r
Ramp-up time
(from 10−90 % of V
Oi
)
8 10 ms
t
s
Start-up time
(from V
I
connection to 90% of V
Oi
)
10-100% of max I
O,
T
ref
= 25ºC, V
I
= 53 V 140 150 ms
max I
O
0.4
m
s
t
f
Vin shutdown fall time
(from V
I
off to 10% of V
O
)
I
O
= 0 A 7 s
RC start-up time max I
O
53 ms
max I
O
3.2 ms
t
RC
RC shutdown fall time
(from RC
off to 10% of V
O
)
I
O
= 0 A 7 s
I
O
Output current 0 33 A
I
lim
Current limit threshold V
O
= 10.8 V, T
ref
< max T
ref
34 38 43 A
I
sc
Short circuit current T
ref
= 25ºC, V
O
< 0.2V, see Note 3 45 A
V
Oac
Output ripple & noise See ripple & noise section,
max I
O
, 85 220 mVp-p
OVP Over voltage protection T
ref
= +25°C, V
I
= 53 V, 10-100% of
max I
O
15.6 V
Note 1: Vin = 40-75V
Note 2: Output filter according to Ripple & Noise section.
Note 3: OCP in latch mode.
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
9
Ericsson Internal
PRODUCT SPECIFICATION 7 (9)
Prepared (also subject responsible if other) No.
EANDKUL 2/1301-BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FJB/GKF (Natalie Johansson) (MICJMAL) 2008-06-18 A
12.0V, 33A / 400W Electrical Specification
BMR 453 xxxx/001
Efficiency Power Dissipation
75
80
85
90
95
10 0
0 5 10 15 2 0 2 5 3 0 [ A ]
[%]
36 V
48 V
53 V
75 V
0
4
8
12
16
20
0 5 10 15 20 25 30 [A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at T
ref
= +25°C Dissipated power vs. load current and input voltage at
T
ref
= +25°C
Output Current Derating, open frame
Output Current Derating, base plate option
0
5
10
15
20
25
30
35
0 2040 6080100[°C]
[A]
3.0 m/s
2.0 m/s
1. 0 m/ s
0.5 m/s
0
5
10
15
20
25
30
35
0 20406080100[°C]
[A]
3.0 m/s
2.0 m/s
1. 0 m/ s
0.5 m/s
Available load current vs. ambient air temperature and airflow at
V
I
= 53 V. See Thermal Consideration section.
Available load current vs. ambient air temperature and airflow at
V
I
= 53 V. See Thermal Consideration section.
Thermal Resistance, base plate option
0
2
4
6
8
0.0 0.5 1.0 1.5 2.0 2.5 3.0[m/s]
[°C/W]
Thermal resistance vs. airspeed measured at the converter. Tested in
wind tunnel with airflow and test conditions as per
the Thermal consideration section. V
I
= 53 V, I
O
= 25 A
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
10
Ericsson Internal
PRODUCT SPECIFICATION 8 (9)
Prepared (also subject responsible if other) No.
EANDKUL 2/1301-BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FJB/GKF (Natalie Johansson) (MICJMAL) 2008-06-18 A
12.0V, 33A / 400W Electrical Specification BMR 453 xxxx/001
Output Characteristics Current Limit Characteristics
9.00
9.50
10.00
10.50
11.00
11.50
12.00
0 5 10 15 20 25 30 [A]
[V]
36 V
40 V
53 V
75 V
0.00
3.00
6.00
9.00
12 . 0 0
32 34 36 38 40 [A ]
[V]
36 V
48 V
53 V
75 V
O
utput voltage vs. load current at T
ref
= +25°C
The
output voltage range is limited at 36V input voltage.
O
utput voltage vs. load current at I
O
> max I
O
, T
ref
= +25°C
Start-up Shut-down
Start-up enabled by connecting V
I
at:
T
ref
= +25°C, V
I
= 53 V,
I
O
= 33 A resistive load.
Top trace: output voltage (5 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (50 ms/div.).
Shut-down enabled by disconnecting V
I
at:
T
ref
= +25°C, V
I
= 53 V,
I
O
=33 A resistive load.
Top trace: output voltage (5 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (1 ms/div.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at:
T
ref
= +25°C, V
I
= 53 V,
I
O
= 33 A resistive load.
Trace: output voltage (50mV/div.).
Time scale: (2 µs/div.).
Output voltage response to load current
step-change (8.25-24.75-8.25 A) at:
T
ref
=+25°C, V
I
= 53 V, C
O
= 3.3mF.
Top trace: output voltage (0.5 V/div.).
Bottom trace: output current (10A/div.).
Time scale: (0.5 ms/div.).
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
11
Ericsson Internal
PRODUCT SPECIFICATION 1 (6)
Prepared (also subject responsible if other) No.
EANDKUL 30/1301-BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FJB/GKF (Natalie Johansson) (MICJMAL) 2008-06-18 A
EMC Specification
Conducted EMI measured according to EN55022, CISPR 22
and FCC part 15J (see test set-up). See Design Note 009 for
further information. The fundamental switching frequency is
140 kHz for BMR 453 @ V
I
= 53 V, max I
O
.
Conducted EMI Input terminal value (typ)
EMI without filter
External filter (class B)
Suggested external input filter in order to meet class B in
EN 55022, CISPR 22 and FCC part 15J.
L1
C1 C2 C3
C4
C5
R
-
+
Module
+
-
0
0
L2
Filter components:
C1 = 1 + 1 µF
C2 = 1 + 1 µF
C3 = 220 µF
C4 = 2.2 nF
C5 = 2.2 nF
L1 = 0.81 mH
L2 = 0.81 mH
EMI with filter
Test set-up
Layout recommendation
The radiated EMI performance of the DC/DC converter will
depend on the PCB layout and ground layer design.
It is also important to consider the stand-off of the DC/DC
converter.
If a ground layer is used, it should be connected to the output
of the DC/DC converter and the equipment ground or
chassis.
A ground layer will increase the stray capacitance in the PCB
and improve the high frequency EMC performance.
Output ripple and noise
Output ripple and noise measured according to figure below.
See Design Note 022 for detailed information.
Output ripple and noise test setup
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
12
Ericsson Internal
PRODUCT SPECIFICATION 2 (6)
Prepared (also subject responsible if other) No.
EANDKUL 30/1301-BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FJB/GKF (Natalie Johansson) (MICJMAL) 2008-06-18 A
Operating information
Input Voltage
The input voltage range 36 to 75 Vdc meets the requirements
of the European Telecom Standard ETS 300 132-2 for normal
input voltage range in —48 and —60 Vdc systems,
-40.5 to -57.0 V and —50.0 to -72 V respectively.
At input voltages exceeding 75 V, the power loss will be
higher than at normal input voltage and T
ref
must be limited to
absolute max 125 C. The absolute maximum continuous input
voltage is 80Vdc.
Turn-off Input Voltage
The DC/DC converters monitor the input
voltage and will turn on and turn off at predetermined levels.
The turn on and turn off level and the hysteresis in between
can be configured via the PMBus.
The default hysteresis between turn on and turn off input
voltage is set to 2 V.
Remote Control (RC)
The products are fitted with a
configurable remote control
function. The primary remote
control is referenced to the primary
negative input connection (-In). The
RC function allows the converter to
be turned on/off by an external
device like a semiconductor or
mechanical switch. The RC pin has
an internal pull up resistor. The
remote control functions can also
be configured using the PMBus.
The maximum required sink current is 1 mA. When the RC pin
is left open, the voltage generated on the RC pin is
max 6 V. The logic options for the primary remote control is
configured using the PMBus. The default setting is negative
logic.
Input and Output Impedance
The impedance of both the input source and the load will
interact with the impedance of the DC/DC converter. It is
important that the input source has low characteristic
impedance. 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 addition of a 100
µF capacitor across the input of the converter will ensure
stable operation. The capacitor is not required when powerin
g
the DC/DC converter from an input source with an inductance
below 10 µH.
External Decoupling Capacitors
When powering loads with significant dynamic current
requirements, the voltage regulation at the point of load can
be improved by addition of decoupling capacitors 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 parallel capacitors to lower the effective ESR.
The ceramic capacitors will handle high-frequency dynamic
load changes while the electrolytic capacitors are used to
handle low frequency dynamic load changes. Ceramic
capacitors will also reduce any high frequency noise at the
load.
It is equally important to use low resistance and low
inductance PCB layouts and cabling.
External decouplin
g
capacitors will become part of the control
loop of the DC/DC converter and may affect the stability
margins. As a “rule of thumb”, 100 µF/A of output current can
be added without any additional analysis. The ESR of the
capacitors is a very important parameter. Power Modules
guarantee stable operation with a verified ESR value of >10
mΩ across the output connections.
For further information please contact your local Ericsson
Power Modules representative.
Parallel Operation
TBD. For further information please contact your local sales
representative.
PMBus configuration and support
The BMR 453 DC/DC converters provide a PMBus digital
interface that enables the user to configure many aspects of
the device operation as well as monitor the input and output
parameters. Please contact your local Ericsson Power
Modules representative for appropriate SW tools to down-
load new configurations.
Output Voltage Adjust using PMBus
The output voltage of the product can be reconfigured using
the PMBus interface. The output volta
g
e can be adjusted from
9V to 13.2V
Margin Up/Down Controls
These controls allow the output voltage to be momentarily
adjusted, either up or down, by a nominal 5 %. This provides
a convenient method 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.
The margin up and down levels of the product can be re-
configured using the PMBus interface.
Soft-start Power Up
The soft-start control introduces a time-delay (default setting
40 ms) before allowing the output voltage to rise. The default
rise time of the ramp up is 10 ms. Power-up is hence
completed within 50 ms in default configuration using remote
control. When starting by applying input voltage the control
circuit boot-up time adds an additional 100 ms delay. The
soft-start power up of the product can be reconfigured using
the PMBus interface.
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
13
Ericsson Internal
PRODUCT SPECIFICATION 3 (6)
Prepared (also subject responsible if other) No.
EANDKUL 30/1301-BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FJB/GKF (Natalie Johansson) (MICJMAL) 2008-06-18 A
Operating information continued
Remote Sense
The DC/DC converters have remote sense that can be used
to compensate for voltage drops between the output and the
point of load. The sense traces should be located close to the
PCB ground layer to reduce noise susceptibility. The remote
sense circuitry will compensate for up to 10% voltage drop
between output pins and the point of load. If the remote
sense is not needed +Sense should be connected to +Out
and -Sense should be connected to -Out. To be able to use
remote sense the converter must be equipped with a digital
connector.
Temperature Protection (OTP, UTP)
The products are protected from thermal overload by an
internal temperature shutdown protection.
When T
ref
as defined in thermal consideration section is
exceeded the product will shut down. The product will make
continuous attempts to start up (non-latching mode) and
resume normal operation automaticall
y
when the temperature
has dropped below the temperature threshold, the hysteresis
is defined in general electrical specification.
The OTP and hysteresis of the product can be re-configured
using the PMBus interface. The product has also an under
temperature protection. The OTP and UTP fault limit and fault
response can be configured via the PMBus. Note: using the
fault response “continue without interruption” may cause
permanent damage of the product.
Over Voltage Protection (OVP)
The product has output over voltage protection that will shut
down the converter in over voltage conditions (latchin
g
mode)
The OVP fault level and fault response can be re-configured
using the PMBus interface.
Over Current Protection (OCP)
The product includes current limiting circuitry for protection at
continuous overload. The product will shut down if the max
output current (max I
O
) is exceeded and the output voltage is
below 3.6V. The load distribution should be designed for the
maximum output short circuit current specified. The OCP
level and fault response can be re-configured using the
PMBus interface. Note: using the fault response “continue
without interruption” may cause permanent damage of the
product.
Input Over/Under voltage protection
The input of the product can be protected agains high input
voltage and low input voltage. The over- and under-voltage
fault level and fault response can be configured via the
PMBus interface.
Pre-bias Start-up
The product has a Pre-bias start up functionality and will not
sink current during start up if a pre-bias source is present at
the output terminals.
Synchronization
When the PG SYNC pin is configured as an input (SYNC IN)
the device will automatically check for a clock signal on the
PG SYNC pin each time the module is enabled by RC or via
PMBus. The incoming clock signal must be 100, 125, 140,
150, 200, 250 or 300kHz and must be stable when the
module is enabled. The PG SYNC pin is configured via the
PMBus interface.
Power Good
The PG SYNC pin can be configured as an output (POWER
GOOD). The power good signal (TTL level) indicates proper
operation of the product and can also be used as an error fla
g
indicator. The PG SYNC pin is configured via the PMBus
interface.
Tracking and External reference
The PG SYNC pin can be configured as an input for voltage
tracking or an external analogue reference.
The PG SYNC pin is configured via the PMBus interface.
Switching frequency adjust using PMBus
The switching frequency is set to140kHz as default but this
can be reconfigured via the PMBus interface. The converter is
optimized at this frequency but can run at lower and higher
frequenc
y
. However the output performance is not specified if
the frequency is changed.
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
14
Ericsson Internal
PRODUCT SPECIFICATION 4 (6)
Prepared (also subject responsible if other) No.
EANDKUL 30/1301-BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FJB/GKF (Natalie Johansson) (MICJMAL) 2008-06-18 A
Thermal Consideration
General
The converters are designed to operate in different thermal
environments and sufficient cooling must be provided to
ensure reliable operation.
Cooling is achieved mainly by conduction, from the pins to
the host board, and convection, which is dependant on the
airflow across the converter. Increased airflow enhances the
cooling of the converter.
The Output Current Derating graph found in the Output
section for each model provides the available output current
vs. ambient air temperature and air velocity at V
in
= 53 V.
The DC/DC converter is tested on a 254 x 254 mm,
35 µm (1 oz), 8-layer test board mounted vertically in a wind
tunnel with a cross-section of 305 x 305 mm.
Proper cooling of the DC/DC converter can be verified by
measuring the temperature at position P1. The temperature at
these positions should not exceed the max values provided in
the table below.
Note that the max value is the absolute maximum rating
(non destruction) and that the electrical Output data is
guaranteed up to T
ref
+90°C.
See Design Note 019 for further information.
Position Device Designation max value
P
1
Pcb T
ref
125º C
P
2
Opto-coupler - 95º C
Top view Bottom view
Thermal Consideration continued
Definition of reference temperature (T
ref
)
The reference temperature is used to monitor the temperature
limits of the product. Temperatures above maximum T
ref
are
not allowed and may cause degradation or permanent
damage to the product. T
ref
is also used to define the
temperature range for normal operating conditions.
T
ref
is defined by the design and used to guarantee safety
margins, proper operation and high reliability of the module.
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
15
Ericsson Internal
PRODUCT SPECIFICATION 5 (6)
Prepared (also subject responsible if other) No.
EANDKUL 30/1301-BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FJB/GKF (Natalie Johansson) (MICJMAL) 2008-06-18 A
Connections (Top view)
Pin Designation Function
1 +In Positive Input
2 RC Remote Control
3 Case Case to GND (optinal)
4 -In Negative Input
5 -Out Negative Output
6 S+ Positive Remote Sense
7 S- Negative Remote Sense
8 SA0 Address pin 0
9 SA1 Address pin 1
10 SCL PMBus Clock
11 SDA PMBus Data
12 PG SYNC Configurable I/O pin:
Power Good output, SYNC-,
tracking-, or ext ref-input
13 DGND PMBus ground
14 SALERT PMBus alert signal
15 CTRL CS PMBus remote control
16 +Out Positive Output
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
16
Ericsson Internal
PRODUCT SPECIFICATION 1 (4)
Prepared (also subject responsible if other) No.
EANDKUL 31/1301-BMR 453
Approved Checked Date Rev Reference
EAB/FJB/GKF (Natalie Johannson) (MICJMAL) 2008-06-17 A
PMBus Communications
The BMR 453 DC/DC converters provide a PMBus digital
interface that enables the user to configure many aspects of
the device operation as well as monitor the input and output
parameters. The products can be used with any standard 2-
wire I2C or SMBus host device. In addition, the device is
compatible with PMBus version 1.1 and includes an SALERT
line to help mitigate bandwidth limitations related to
continuous fault monitoring.
Monitoring via PMBus
A system controller can monitor a wide variety of different
parameters through the PMBus interface. The controller can
monitor for fault condition by monitoring the SALERT pin,
which will be asserted when any number of pre-configured
fault or warning conditions occur. The system controller can
also continuously monitor for any number of power
conversion parameters including but not limited to the
following:
• Input voltage
• Output voltage
• Output current
• Internal junction temperature
• Switching frequency
• Duty cycle
Evaluation software
For the DC/DC converter Ericsson provides an evaluation
software, CMM.
For more information please contact your local
Ericsson sales representative.
Addressing
The figure and table below show recommended resistor
values with min and max voltage range for hard-wiring
PMBus addresses (series E96, 1% tolerance resistors
suggested):
SA0/SA1
Id
Id
R1 /R0 [kΩ] Min voltage[V] Max voltage[V]
0 24.9 0.261 0.438
1 49.9 0.524 0.679
2 75 0.749 0.871
3 100 0.926 1.024
4 124 1.065 1.146
5 150 1.187 1.256
6 174 1.285 1.345
7 200 1.371 1.428
The SA0 and SA1 pins can be configured with a resistor to
GND according to the following equation.
PMBus Address = 8 x (SA0value) + (SA1 value)
If any one of those voltage applied to ADC0 and ADC1 is out
of the range from the table above, PMBus address 127 is
assigned. If the calculated PMBus address is 0 or 12, PMBus
address 127 is assigned instead. PMBus address 11 is not to
be used. The user shall also be aware of further limitations of
the addresses as stated in the PMBus Specification.
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
17
Ericsson Internal
PRODUCT SPECIFICATION 2 (4)
Prepared (also subject responsible if other) No.
EANDKUL 31/1301-BMR 453
Approved Checked Date Rev Reference
EAB/FJB/GKF (Natalie Johannson) (MICJMAL) 2008-06-17 A
PMBus Commands
The DC/DC converter is PMBUS compliant. The following
table lists the implemented PMBus commands. For more
detailed information see PMBus Power System Management
Protocol Specification; Part I — General Requirements,
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 Yes
Output Commands
VOUT_MODE 20h Yes
VOUT_COMMAND 21h Yes
VOUT_TRIM 22h Yes
VOUT_GAIN 23h Yes
VOUT_MAX 24h Yes
VOUT_MARGIN_HIGH 25h Yes
VOUT_MARGIN_LOW 26h Yes
VOUT_TRANSITION_RATE 27h Yes
VOUT_DROOP 28h No
VOUT_SCALE_LOOP 29h Yes
VOUT_SCALE_MONITOR 2Ah Yes
COEFFICIENTS 30h No
POUT_MAX 31h No
MAX_DUTY 32h Yes
FREQUENCY_SWITCH 33h Yes
VIN_ON 35h Yes
VIN_OFF 36h Yes
IOUT_CAL_GAIN 38h Yes
IOUT_CAL_OFFSET 39h Yes
Fault Limit Commands
POWER_GOOD_ON 5Eh Yes
POWER_GOOD_OFF 5Fh Yes
VOUT_OV_FAULT_LIMIT 40h Yes
VOUT_UV_FAULT_LIMIT 44h Yes
IOUT_OC_FAULT_LIMIT 46h Yes
IOUT_OC_LV_FAULT_LIMIT 48h Yes
IOUT_UC_FAULT_LIMIT 4Bh No
OT_FAULT_LIMIT 4Fh Yes
Designation Cmd Impl
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
VOUT_OV_WARN_LIMIT 42h Yes
VOUT_UV_WARN_LIMIT 43h Yes
IOUT_OC_WARN_LIMIT 4Ah Yes
IIN_OC_FAULT_LIMIT 5Bh No
IIN_OC_WARN_LIMIT 5Dh No
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 Yes
IOUT_UC_FAULT_RESPONSE 4Ch No
IIN_OC_FAULT_RESPONSE 5Ch No
Time setting Commands
TON_DELAY 60h Yes
TON_RISE 61h Yes
TON_MAX_FAULT_LIMIT 62h Yes
TON_MAX_FAULT_RESPONSE 63h Yes
TOFF_DELAY 64h Yes
TOFF_FALL 65h Yes
TOFF_MAX_WARN_LIMIT 66h Yes
Status Commands (Read Only)
CLEAR_FAULTS 03h Yes
STATUS_BYTES 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_OTHER 7Fh Yes
Monitor Commands (Read Only)
READ_VIN 88h Yes
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
18
Ericsson Internal
PRODUCT SPECIFICATION 3 (4)
Prepared (also subject responsible if other) No.
EANDKUL 31/1301-BMR 453
Approved Checked Date Rev Reference
EAB/FJB/GKF (Natalie Johannson) (MICJMAL) 2008-06-17 A
READ_VOUT 8Bh
Yes
READ_IOUT 8Ch Yes
READ_TEMPERATURE_1 8Dh Yes
READ_TEMPERATURE_2 8Eh Yes
READ_FAN_SPEED_1 90h No
READ_DUTY_CYCLE 94h Yes
READ_FREQUENCY 95h Yes
READ_POUT 96h No
READ_PIN 97h No
Identification Commands (Read Only)
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
Group Commands
INTERLEAVE 37h No
Supervisory Commands
STORE_DEFAULT_ALL 11h Yes
RESTORE_DEFAULT_ALL 12h Yes
STORE_USER_ALL 15h Yes
RESTORE_USER_ALL 16h Yes
BMR 453 Specific Commands
MFR_POWER_GOOD_POLARITY D0h Yes
MFR_VOUT_UPPER_RESISTOR D2h Yes
MFR_VIN_SCALE_MONITOR D3h Yes
MFR_CLA_TABLE_NUM_ROW
NUM
D4h Yes
MFR_CLA_ROW_COEFFICIENTS D5h Yes
MFR_STORE_CLA_TABLE D6h Yes
MFR_ACTIVE_COEFF_CLA_TABLE D8h Yes
MFR_SELECT_TEMP_SENSOR DCh Yes
MFR_VIN_OFFSET DDh Yes
MFR_REMOTE_TEMP_CAL E2h Yes
MFR_REMOTE_CONTROL E3h Yes
MFR_DEAD_BAND_MODE E4h Yes
MFR_DEAD_BAND_DELAY E5h Yes
MFR_TEMP_COEFF E7h Yes
MFR_VOUT_ANALOG_SCALE E8h Yes
MFR_READ_VOUT_ANALOG_REF E9h Yes
MFR_DEBUG_BUFF F0h Yes
Designation Cmd Impl
MFR_SETUP_PASSWORD F1h
Yes
MFR_DISABLE_SECURITY F2h
Yes
MFR_DEAD_BAND_IOUT_THRESHOLD F3h Yes
MFR_SECURITY_BIT_MASK F4h Yes
MFR_PRIMARY_TURN F5h Yes
MFR_SECONDARY_TURN F6h Yes
MFR_SET_DPWM_POLARITY F7h Yes
MFR_ILIM_SOFTSTART F8h Yes
MFR_MULTI_PIN_CONFIG F9h Yes
MFR_DEAD_BAND_VIN_THRESHOLD FAh Yes
MFR_DEAD_BAND_VIN_IOUT_HYS FBh Yes
MFR_FIRMEWARE_VERSION FCh Yes
MFR_MESSAGE_CODE_DEVICE_ID FDh Yes
Notes:
Cmd is short for Command.
Impl is short for Implemented.
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
19
Ericsson Internal
PRODUCT SPEC. MECHANICAL 1 (3)
Prepared (also subject responsible if other) No.
EPETSCH 4/1301-BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FJB/GKF (Görel Eriksson) See §1 2008-05-30 B
Mechanical Information — Hole Mount, Open Frame Version
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
20
Ericsson Internal
PRODUCT SPEC. MECHANICAL 2 (3)
Prepared (also subject responsible if other) No.
EPETSCH 4/1301-BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FJB/GKF (Görel Eriksson) See §1 2008-05-30 B
Mechanical Information — Through Hole Mount — Base plate version
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
21
Ericsson Internal
PRODUCT SPECIFICATION 1 (3)
Prepared (also subject responsible if other) No.
EPETSCH 5/1301-BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FJB/GKF [Natalie J] See § 1 2008-04-29 A
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 cleanin
g
residues ma
y
affect
long time reliability and isolation voltage.
Delivery package information
The products are delivered in antistatic trays.
Tray specifications
Material PE foam, dissipative
Surface resistance 105 to 1012 ohms/square
Tray capacity 20 converters/tray
Box capacity 20 converters
Weight Product - Open frame
1100 g full tray, 140 g empty tray
Product — Base plate option
1480 g full tray, 140 g empty tray
E
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
22
Ericsson Internal
PRODUCT SPECIFICATION 2 (3)
Prepared (also subject responsible if other) No.
EPETSCH 5/1301-BMR 453 Uen
Approved Checked Date Rev Reference
EAB/FJB/GKF [Natalie J] See § 1 2008-04-29 A
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
Isopropyl alcohol
55°C
35°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
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
© Ericsson AB
Technical Specifi cation
23
