Ericsson Internal
Ericsson Internal
TABLE OF CONTENTS
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E
PRODUCT SPECIFICATION
Prepared (also subject responsible if other)
No.
Prepared (also subject responsible if other)
No.
SEC/S Kevin Zhou
EZHIXZH
Approved
00152-FGC1011835
1/1301- BMR 457 Uen
RTevechnicRaelferSencpe ecification
Checked
Checked
Date
Approved
Date
Rev
Reference
1/28701-FGC 101 1835 revC August 2012
SEC/S Kevin Zhou
2012-08-24
C
BMR457 series Fully regulated Advanced Bus Converters
SEC/D (Julia You)
2012-07-27
B
© Ericsson AB
Input 36-75 V, Output up to 25 A / 300 W
Key Features
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Advanced Bus Converter Industry standard Eighth-brick
with digital PMBus interface
58.4 x 22.7 x 10.2 mm (2.30 x 0.89 x 0.40 in.)
Optional industry standard 5-pins for intermediate bus
architectures
Industry-leading Power Density for Telecom and
Datacom 129-147W / sq. in
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Ericsson DC/DC Energy Optimizer built-in
High efficiency, typ. 95.2% at half load, 12 Vout
Fully regulated Advanced Bus Converter from 36-75Vin
2250 Vdc input to output isolation
Fast Feed forward regulation to manage line transients
Optional baseplate for high temperature applications
Droop Load Sharing with 10% current share accuracy
PMBus Revision 1.2 compliant
2.9 million hours MTBF
ISO 9001/14001 certified supplier
Safety Approvals
Design for Environment
Power Management
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Configurable soft start/stop
Precision delay and ramp-up
Voltage margining
Voltage/current/temperature monitoring
Wide output voltage range
Configurable protection features
Meets requirements in high-
temperature lead-free soldering
processes
Contents
Ordering Information
General Information
Safety Specification
............................................................. 2
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Absolute Maximum Ratings
Electrical Specification
12 V, 22 A / 264 W (36-75Vin)
12 V, 25 A / 300 W (40-60Vin)
12.45 V, 22 A / 261 W (36-75Vin)
12.45 V, 25 A / 296 W (40-60Vin)
BMR 457 0004/001............................... 7
BMR 457 0000/002............................. 11
BMR 457 0007/014............................. 15
BMR 457 0011/017............................. 18
EMC Specification
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Operating Information
Thermal Consideration
Connections
PMBus Interface
Mechanical Information
Soldering Information
Delivery Information
Product Qualification Specification