Ericsson Internal
PRODUCT SPECIFICATION 1 (4)
Prepared (also subject responsible if other) No.
SEC/S Marshall
Approved Checked Date Rev Reference
2010-09-27 PA1 V
Key Features
• Industry standard Quarter-brick footprint
• 57.9 x 36.8 x 23.5 mm (2.28 x 1.45 x 0.925 in.)
• High efficiency, typ. 96.1 % at 9.5 Vout 50% load &
48Vin
• 1500 Vdc input to output isolation
• Meets safety requirements according to IEC/EN/UL
60950
• More than 0.6 million hours MTBF
General Characteristics
• Input under voltage protection
• Over temperature protection
• Output over voltage protection
• Output short-circuit protection
• Remote control
• Baseplate option
• Highly automated manufacturing ensures quality
• ISO 9001/14001 certified supplier
Safety Approvals Design for Environment
SE-57003M1
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 Marshall Wang 001 52-EN/LZT 146 433 Uen
Approved Checked Date Rev Reference
2010-09-21 A
Contents
Ordering Information .............................................................2
General Information .............................................................2
Safety Specification .............................................................3
Absolute Maximum Ratings .............................................................4
Electrical Specification
9.5V, 60A / 540W BMR 653 31/45M.................................. 5
EMC Specification .............................................................9
Operating Information ...........................................................10
Thermal Consideration ........................................................... 11
Connections ...........................................................11
Mechanical Information ...........................................................12
Soldering Information ...........................................................13
Delivery Information ...........................................................13
Product Qualification Specification ........................................................... 14
E
BMR 653 series Intermediate Bus Converters
Input 45-50 V, Output up to 60 A / 540 W
EN/LZT 146 433 R1A September 2010
© Ericsson AB
Technical Specification
Ericsson Internal
PRODUCT SPECIFICATION 2 (4)
Prepared (also subject responsible if other) No.
SEC/S Marshall
Approved Checked Date Rev Reference
2010-09-27 PA1 V
Ordering Information
Product program Output
BMR 653 31/45M 9.5 V, 60 A / 540 W
Product number and Packaging
BMR 653 31/4n1n2 n3
Options n1 n2 n3
Baseplate & Ground pin ο
Height ο
Delivery package information
ο
Options Description
n1
n2
n3
5
M
/B
Baseplate with ground pin*
23.5mm height*
Tray
Example: a 23.5mm height product with baseplate, ground pin
and tray packaging would be BMR 653 31/45M/B.
* Standard variant (i.e. no option selected).
General Information
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:
- 0.6 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
Power Modules General Terms and Conditions of Sale.
Limitation of Liability
Ericsson Power Modules does not make any other
warranties, expressed or implied including any warranty of
merchantability or fitness for a particular purpose
(including, but not limited to, use in life support
applications, where malfunctions of product can cause
injury to a person’s health or life).
© Ericsson AB 2010
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 653 series Intermediate Bus Converters
Input 45-50 V, Output up to 60 A / 540 W
EN/LZT 146 433 R1A September 2010
© Ericsson AB
Technical Specification
2
Ericsson Internal
PRODUCT SPECIFICATION 3 (4)
Prepared (also subject responsible if other) No.
SEC/S Marshall
Approved Checked Date Rev Reference
2010-09-27 PA1 V
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 Equip m ent.
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 product
specification).
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 653 series Intermediate Bus Converters
Input 45-50 V, Output up to 60 A / 540 W
EN/LZT 146 433 R1A September 2010
© Ericsson AB
Technical Specification
3
Ericsson Internal
PRODUCT SPECIFICATION 1 (6)
Prepared (also subject responsible if other) No.
ELIYAFU 2/1301- BMR 653 31/45M Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) EXUEFYA 2010-08-25 A
Absolute Maximum Ratings
Characteristics min typ max Unit
Tp1 Operating Temperature (see Thermal Consideration section) -40 +120 °C
TS Storage temperature -55 +125 °C
VI Input voltage -0.5 +80 V
Viso Isolation voltage (input to output test voltage) 1500 Vdc
Vtr Input voltage transient (tp 100 ms) 100 V
Positive logic option -0.5 15 V
VRC Remote Control pin voltage
(see Operating Information section) Negative logic option -0.5 15 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.
Fundamental Circuit Diagram
Control
Driver
Control
-OUT
+OUT
Driver
-IN
RC
+IN
Secondary
Secondary
Primary
Primary
E
BMR 653 series Intermediate Bus Converters
Input 45-50 V, Output up to 60 A / 540 W
EN/LZT 146 433 R1A September 2010
© Ericsson AB
Technical Specification
4
Ericsson Internal
PRODUCT SPECIFICATION 2 (6)
Prepared (also subject responsible if other) No.
ELIYAFU 2/1301- BMR 653 31/45M Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) EXUEFYA 2010-08-25 A
9.5 V, 540W Electrical Specification BMR 653 31/45M
TP1 = +25 ºC to +90 ºC, VI = 45 to 50 V, unless otherwise specified under Conditions.
Typical values given at: TP1 = +35°C, VI= 48 V, max PO, unless otherwise specified under Conditions.
Additional Cin = 100 µF.
Characteristics Conditions min typ max Unit
VI Input voltage range 45 48 50 V
VIoff Turn-off input voltage Decreasing input voltage 32 33 34 V
VIon Turn-on input voltage Increasing input voltage 34.5 35.3 36.1 V
CI Internal input capacitance 35.2 µF
VI = 45 V 0 540
VI = 48 V 0 540
PO Output power
VI = 50 V 0 540
W
50 % of max PO , VI = 48 V 96.1
η Efficiency max PO , VI = 48 V 94.7 %
Pd Power Dissipation max PO 30 43 W
Pli Input idling power PO = 0 W, VI = 48 V 4.9 W
PRC Input standby power VI = 48 V (turned off with RC) 0.18 W
fs Switching frequency 0 to 100 % of max PO 225 250 275 kHz
VOi Output voltage initial setting and
accuracy TP1 = +35°C, VI = 48 V, PO = 0 W 9.36 9.42 9.46 V
Output voltage tolerance band 0 to 100 % of max PO (See note1
for +35 ºC) 8.42 9.58 V
Idling voltage PO = 0 W 9.0 9.5 V
Line regulation 50 mV
VO
Load regulation VI = 48 V, 0-100 % of max PO 400 500 780 mV
Vtr Load transient
voltage deviation ±680 mV
ttr Load transient recovery time
VI = 48 V, Load step 25-75-25 % of
max PO, di/dt = 5 A/μs, see note 2
50 µs
tr Ramp-up time
(from 10−90 % of VOi) 3 5 12 ms
ts Start-up time
(from VI connection to 90 % of VOi)
0 to 100 % of max PO
8 11 18 ms
max PO 0.1 ms
tf VI shut-down fall time
(from VI off to 10 % of VO) PO = 0 W 1.6 s
RC start-up time max PO 10 ms
max PO 0.1 ms
tRC RC shut-down fall time
(from RC off to 10 % of VO) PO = 0 W 1.5 s
VI = 45 V 0 60 A
VI = 48 V 0 60 A
IO Output current
VI = 50 V 0 60 A
Ilim Current limit threshold TP1 < max TP1 70 80 91 A
Isc Short circuit current TP1 = 35ºC, see note 3 26 A
VOac Output ripple & noise See ripple & noise section,
max PO , See Note4 120 mVp-p
OVP Input over voltage protection 80 V
Note 1: The Output Voltage tolerance band is 8.5 V-9.5V at TP1 = +35°C
Note 2: Cout=100uF ceramic cap + 3300uF electrolytic cap
Note 3: it is hiccup mode , Cin=100uF electrolytic capacitor needed when do short circuit current test
Note 4: Cout=100uF ceramic cap
E
BMR 653 series Intermediate Bus Converters
Input 45-50 V, Output up to 60 A / 540 W
EN/LZT 146 433 R1A September 2010
© Ericsson AB
Technical Specification
5
Ericsson Internal
PRODUCT SPECIFICATION 3 (6)
Prepared (also subject responsible if other) No.
ELIYAFU 2/1301- BMR 653 31/45M Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) EXUEFYA 2010-08-25 A
9.5 V, 540W Typical Characteristics BMR 653 31/45M
Efficiency Power Dissipation
80
85
90
95
10 0
0 102030405060[A]
[%]
45V
48 V
50V
0
10
20
30
40
0 15304560[A]
[W]
45V
48 V
50V
Efficiency vs. load current and input voltage at TP1 = +35°C Dissipated power vs. load current and input voltage at TP1 = +35°C
Output Characteristics Current Limit Characteristics
8.00
8.50
9.00
9.50
10.00
0 15304560[A]
[V]
45V
48 V
50V
7.50
8.00
8.50
9.00
9.50
15 30 45 60 75 90 [A]
[V]
45V
48 V
50V
Output voltage vs. load current at TP1 = +35°C Output voltage vs. load current at IO > max IO , TP1 = +35°C
E
BMR 653 series Intermediate Bus Converters
Input 45-50 V, Output up to 60 A / 540 W
EN/LZT 146 433 R1A September 2010
© Ericsson AB
Technical Specification
6
Ericsson Internal
PRODUCT SPECIFICATION 4 (6)
Prepared (also subject responsible if other) No.
ELIYAFU 2/1301- BMR 653 31/45M Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) EXUEFYA 2010-08-25 A
9.5 V, 540W Typical Characteristics BMR 653 31/45M
Start-up Shut-down
Start-up enabled by connecting VI at:
TP1 = +35°C, VI = 48 V ,
IO = 60 A resistive load.
Top trace: output voltage ( 5 V/div. ).
Bottom trace: input voltage ( 50 V/div. ).
Time scale: ( 5 ms/div. ).
Shut-down enabled by disconnecting VI at:
TP1= +35°C, VI = 48 V ,
IO = 60 A resistive load.
Top trace: output voltage ( 5 V/div. ).
Bottom trace: input voltage ( 50 V/div. ).
Time scale: ( 0.1ms/div. ).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at:
TP1= +35°C, VI = 48 V ,
IO = 60 A resistive load.
Trace: output voltage ( 50 mV/div. ).
Time scale: ( 0.1 ms/div. ).
Output voltage response to load current step-
change ( 15-45-15 A ) at:
TP1=+35°C, VI = 48 V .
Top trace: output voltage ( 1V/div. ).
Bottom trace: load current ( 20 A/div. ).
Time scale: ( 0.1 ms/div. ).
E
BMR 653 series Intermediate Bus Converters
Input 45-50 V, Output up to 60 A / 540 W
EN/LZT 146 433 R1A September 2010
© Ericsson AB
Technical Specification
7
Ericsson Internal
PRODUCT SPECIFICATION 5 (6)
Prepared (also subject responsible if other) No.
ELIYAFU 2/1301- BMR 653 31/45M Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) EXUEFYA 2010-08-25 A
Typical Characteristics at VI = 48 V BMR 653 31/45M
Output Power Derating (Baseplate) Thermal Resistance (Baseplate)
0
100
200
300
400
500
600
-20 0 20 40 60 80 [°C]
[W]
3.0 m/s
2.5 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Io=60A
0
1
2
3
4
0.0 0.5 1.0 1.5 2.0 2.5 3.0[m/s]
[°C/W]
Available load current vs. ambient air temperature and airflow at
VI = {48} V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter. Tested in
wind tunnel with airflow and test conditions as per
the Thermal consideration section. VI = {48} V.
E
BMR 653 series Intermediate Bus Converters
Input 45-50 V, Output up to 60 A / 540 W
EN/LZT 146 433 R1A September 2010
© Ericsson AB
Technical Specification
8
Ericsson Internal
PRODUCT SPECIFICATION 1 (4)
Prepared (also subject responsible if other) No.
EXUEFYA 3/1301-BMR 653 31/34 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) EQUENXU 2010-04-26 A
EMC Specification
Conducted EMI measured according to EN5 5022, CISPR 22
and FCC part 15J (see test set-up). See Design Note 009 for
detailed information. The fundamental switching frequency is
250 kHz for BMR 653 31/34 @ VI = 48 V, max IO.
Conducted EMI Input terminal value (typ)
EMI without filter
External filter (class A)
Required external input filter in order to meet class B in
EN 55022, CISPR 22 and FCC part 15J.
Filter
components:
C1 = 5μF
C2,3 = 5μF
C4,5= 2.2nF
C6 = 100uF
L1,L2 = 2.6mH
at 10KHz,
0.86mH at
100KHz
common
inductor
EMI with filter
Test set-up
Layout recommendations
The radiated EMI performanc e of the product will depend on
the PCB layout and groun d la yer 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 PCB
and improve the high frequency EMC performance.
Output ripple and noise
Output ripple and noise meas ured according to figure below.
See Design Note 022 for detai led information.
Output ripple and noise test setup
E
BMR 653 series Intermediate Bus Converters
Input 45-50 V, Output up to 60 A / 540 W
EN/LZT 146 433 R1A September 2010
© Ericsson AB
Technical Specification
9
Ericsson Internal
PRODUCT SPECIFICATION 2 (4)
Prepared (also subject responsible if other) No.
EXUEFYA 3/1301-BMR 653 31/34 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) EQUENXU 2010-04-26 A
Operating information
Input Voltage
The input voltage range 42 to 53Vdc me ets the requirements
of the European Telecom Standard ETS 300 132-2 for normal
input voltage range in –48 systems.
At input voltages exceeding 75 V, the po wer loss will be higher
than at normal input voltage and Tref must be limited to
absolute max +115°C. The absolute maximum continuous
input voltage is 80 Vdc.
Turn-off Input Voltage
The products monitor the input voltage and will turn on and
turn off at predetermined levels.
The minimum hysteresis between turn on and turn off input
voltage is 1V.
Remote Control (RC)
The products are fitted with a
remote control function referenced
to the primary negative i nput
connection (-In), with negative and
positive logic options available. The
RC function allows the product to
be turned on/off by an external
device like a semiconductor or
mechanical switch. The RC pi n has
an internal pull up resistor to +In.
The maximum required si nk current is 1 mA. When the RC pin
is left open, the voltage generated on the RC pin is
12 – 15 V. The standard product is provided with “negative
logic” remote control and will be off until the RC pin is
connected to the -In. To turn on the product the voltage
between RC pin and -In should be less than 1V.To turn off the
product the RC pin should be left open, or connecte d to a
voltage higher than 13 V referenced to -In. In situations where
it is desired to have the product to power up automatically
without the need for control signals or a switch, the RC pin can
be wired directly to -In.
The second option is “positive logic” remote control, which can
be ordered by adding the suffix “P” to the end of the part
number. When the RC pin is left open, the product starts up
automatically when the input voltag e is applied. Turn off is
achieved by connecting the RC pin to the -In. To ensure safe
turn off the voltage difference bet ween RC pi n and the -In pin
shall be less than 1V. The product will restart automatically
when this connection is opened.
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
products are designed for stable operation without external
capacitors connected to the input or out put. The performance
in some applications can be e nhanced by addition of external
capacitance as described under External De coupling
Capacitors. If the input voltage source contains significant
inductance, the addition of a 330－470 µF ca pacitor across
the input of the product will ensure stable operation. The
capacitor is not required when powering the product from an
input source with an inductance below 10 µH. The minimum
required capacitance value depends on the output power and
the input voltage. The higher output power the higher input
capacitance is needed.
External Decoupling Capacitors
When powering loads with significant d ynamic current
requirements, the voltage regulation at the point of load can
be improved by addition of decoup ling 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. It is equally important to
use low resistance and lo w inductance PCB layouts and
cabling.
For further information please contact your local Ericsson
Power Modules representative.
Over Temperature Protection (OTP)
The products are protected from thermal overload by an
internal over temperature shut down circuit.
When Tref as defined in ther mal consideration section
exceeds 130°C the product will shut down. The product will
make continuous attempts to start up (non-latching mode) and
resume normal operation automatically when the temperature
has dropped >10°C below the temperature th reshold.
Over Voltage Protection (OVP)
The products have output over voltage protection that will shut
down the product in over voltage cond itions. The product will
make continuous attempts to start up (non-latching mode) and
resume normal operation automaticall y after removal of the
over voltage condition.
E
BMR 653 series Intermediate Bus Converters
Input 45-50 V, Output up to 60 A / 540 W
EN/LZT 146 433 R1A September 2010
© Ericsson AB
Technical Specification
10
Ericsson Internal
PRODUCT SPECIFICATION 3 (4)
Prepared (also subject responsible if other) No.
EXUEFYA 3/1301-BMR 653 31/34 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) EQUENXU 2010-04-26 A
Over Current Protection (OCP)
The products include current limiting circuitry for protection at
continuous overload. T he output voltage will decrease towards
zero for output currents in excess of max output current (max
IO). The product will resume normal operati on after removal of
the overload. The load distribution should be designed for the
maximum output short circuit current specified.
Thermal Consideration
General
The products are designe d to operate in different thermal
environments and sufficient cooling must be provided to ensure
reliable operation.
For products mounted on a PCB without a heat sink attached,
cooling is achieved mainly by conduction, from the pins to the
host board, and convection, which is dependant on the airflow
across the product. Increased airflow enhances the cooling of
the product. The Output Current Derating graph found in the
Output section for each model provides the availa ble output
current vs. ambient air temperature and air velocit y at
VI =53 V.
Proper cooling of the product can be verified by measuring the
temperature at reference point. The temperature at these
positions should not exceed the max values provided in the
table below.
See Design Note 019 for further information.
Position Description Temp. limit
Reference baseplate 115º C
Base plate
Definition of reference temperature Tref
The reference temperature is used to monitor the temperature
limits of the product. Temperatures above maximum Tref
meassured at the reference point are not allowed and may
cause degradation or permanent damage to the product. Tref is
also used to define the temperature range for normal
operating conditions. Tref is defined by the design and used to
guarantee safety margins, proper op eration and high reliability
of the product.
Connections（top side ）
Pin Designation Function
1 +In Positive input
2 RC Remote control
3 Case Case to GND (optional)
4 -In Negative input
5 -Out Negative output
6 +Out Positive output
E
BMR 653 series Intermediate Bus Converters
Input 45-50 V, Output up to 60 A / 540 W
EN/LZT 146 433 R1A September 2010
© Ericsson AB
Technical Specification
11
Ericsson Internal
PRODUCT SPEC. MECHANICAL 1 (2)
Prepared (also subject responsible if other) No.
EPEIHLI 4/1301-BMR 653 31/45M Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) See §1 2010-09-18 A
Mechanical Information – Hole mount - Base plate GND 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
BMR 653 series Intermediate Bus Converters
Input 45-50 V, Output up to 60 A / 540 W
EN/LZT 146 433 R1A September 2010
© Ericsson AB
Technical Specification
12
Ericsson Internal
PRODUCT SPEC. 1 (3)
Prepared (also subject responsible if other) No.
EAB/FJB/GMJ Igor Perez-Uria 5/1301-BMR 653 31
Approved Checked Date Rev Reference
SEC/D/V [Betty Wu] See §1 2010-02-23 PA1 H
Soldering Information - Hole Mounting
The hole mounted product is intended for plated throug h hole
mounting by wave or manual sold ering. 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. W hen 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 insid e the prod uct 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 trays.
Tray Specifications
Material PE Foam
Surface resistance 105 < Ohm/square < 1012
Bakability The trays are not bakeable
Tray thickness 38.0 mm [1.5 inch]
Box capacity 20 products (1 full tray/box)
Tray weight 100 g empty, 2260 g full tray
E
BMR 653 series Intermediate Bus Converters
Input 45-50 V, Output up to 60 A / 540 W
EN/LZT 146 433 R1A September 2010
© Ericsson AB
Technical Specification
13
Ericsson Internal
PRODUCT SPEC. 2 (3)
Prepared (also subject responsible if other) No.
EAB/FJB/GMJ Igor Perez-Uria 5/1301-BMR 653 31
Approved Checked Date Rev Reference
SEC/D/V [Betty Wu] See §1 2010-02-23 PA1 H
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
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 200 g
5 ms
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 Through hole mount products All leads
Solderability IEC 60068-2-20 test Ta 2 Preconditioning
Temperature, SnPb Eutectic
Temperature, Pb-free
Steam ageing
235°C
245°C
Sinusoidal vibration IEC 60068-2-6 Fc Frequency
Acceleration
Sweep cycles
5 to 100 Hz
10 m/s2
3 * 1
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 653 series Intermediate Bus Converters
Input 45-50 V, Output up to 60 A / 540 W
EN/LZT 146 433 R1A September 2010
© Ericsson AB
Technical Specification
14
