Ericsson Internal
E
EZHIXZH
PRODUCT SPECIFICATION
2 (5)
Prepared (also subject responsible if other)
No.
1/1301- BMR 457 Uen
2
Technical Specification
BMR457 series Fully regulated AdvCahneckceed d Bus Converters
Approved
Date
Rev
Reference
1/28701-FGC 101 1835 revC August 2012
SEC/D (Julia You)
2012-07-27
B
© Ericsson AB
Input 36-75 V, Output up to 25 A / 300 W
002 = 12 V Standard configuration for 40-60
Vin, n3n4 = 00 or 01
Ordering Information
Product program
BMR4570004/001
BMR4570007/013
BMR4570007/014
Vin
36 – 75
Output
008 = 12 V with positive RC logic configuration
for 36-75 Vin, n3n4 = 04 or 05
009 = 12 V with positive RC logic configuration
for 40-60 Vin, n3n4 = 00 or 01
013 = 12 V with 0.6 V droop load sharing
function configuration (36-75 Vin, n3n4 = 06 or
07)
12 V / 22 A, 264 W
12 V / 22 A, 251 W
12.45 V / 22 A, 261 W
36 – 75
36 – 75
BMR4570000/002
BMR4570011/016
BMR4570011/017
40 – 60
40 - 60
40 - 60
12 V / 25 A, 300 W
12 V / 25 A, 285 W
12.45 V / 25 A, 296 W
014 = 12.45 V with 0.6V droop load sharing
function configuration (36-75 Vin, n3n4 = 06 or
07)
016 = 12 V with 0.6 V droop load sharing
function configuration (40-60 Vin, n3n4 = 11 or
12)
Product Number and Packaging
BMR457 n1n2n3n4 /n5n6n7
017 = 12.45 V with 0.6V droop load sharing
function configuration (40-60 Vin, n3n4 = 11 or
12)
n1
n2
n3
n4
/
n5
n6
n7
Options
Mechanical pin
option
x
/
xxx = Application Specific Configuration
Mechanical
option
Packaging
25 converters(through hole pin)/tray, PE foam
dissipative
x
/
20 converters(surface mount pin)/tray,
Antistatic PPE
x
x
/
/
Hardware option
Configuration file
x
x
x
Example: Product number BMR4572004/001 equals an Through hole mount
lead length 3.69 mm (cut), open frame, digital interface with 12 V standard
configuration variant.
Optional
designation
Description
For application specific configurations contact your local Ericsson Power
Modules sales representative.
n1
0 = Standard pin length 5.33 mm
1 = Surface mount option note 1
2 = Lead length 3.69 mm(0.145 in.) (cut)
3 = Lead length 4.57 mm(0.180 in.) (cut)
4 = Lead length 2.79 mm(0.110 in.) (cut)
General Information
n2
0 = Open frame
1 = Baseplate
Reliability
The failure rate (λ) and mean time between failures
n3 n4
00 = 40-60 Vin, 6.9-13.2 Vout adjusted, with
digital interface
01 = 40-60 Vin, 6.9-13.2 Vout adjusted, without
digital interface
(MTBF= 1/λ) is calculated at max output power and an
operating ambient temperature (TA) of +40°C. Ericsson
Power Modules uses Telcordia SR-332 Issue 2 Method 1 to
calculate the mean steady-state failure rate and standard
deviation (σ).
04 = 36-75 Vin, 6.9-13.2 Vout adjusted, with
digital interface
05 = 36-75 Vin, 6.9-13.2 Vout adjusted, without
digital interface
Telcordia SR-332 Issue 2 also provides techniques to
estimate the upper confidence levels of failure rates based
on the mean and standard deviation.
06 = 36-75 Vin, 6.9-13.2 Vout adjusted, Droop
load sharing function for parallel operation,
without digital interface
07 = 36-75 Vin, 6.9-13.2 Vout adjusted, Droop
load sharing function for parallel operation, with
digital interface
Mean steady-state failure rate, λ
Std. deviation, σ
421 n Failures/h
60.9 nFailures/h
MTBF (mean value) for the BMR457 series = 2.91 Mh.
MTBF at 90% confidence level = 2.37 Mh
11 = 40-60 Vin, 6.9-13.2 Vout adjusted, Droop
load sharing function for parallel operation, with
digital interface
12 = 40-60 Vin, 6.9-13.2 Vout adjusted, Droop
load sharing function for parallel operation,
without digital interface
Compatibility with RoHS requirements
The products are compatible with the relevant clauses and
requirements of the RoHS directive 2011/65/EU 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
n5 n6 n7
001 = 12 V Standard configuration for 36-75
Vin, n3n4 = 04 or 05
ERICSSON [ ERICSSON ]
