E
EZHIXZH
Approved
Prepared (also subject responsible if other)
No.
Ericsson Internal
PRODUCT SPECIFICATION
Rev
Reference
2 (5)
BMR457 series
SEC/D (Julia You)
Fully
regulated Advanced
Bus
Converters
2012-07-27
Input 36-75 V, Output up to
25
A /
300
W
Ordering Information
Product program
BMR4570004/001
BMR4570007/013
BMR4570007/014
BMR4570000/002
BMR4570011/016
BMR4570011/017
Vin
36 – 75
36 – 75
36 – 75
40 – 60
40 - 60
40 - 60
Output
12 V / 22 A, 264 W
12 V / 22 A, 251 W
12.45 V / 22 A, 261 W
12 V / 25 A, 300 W
12 V / 25 A, 285 W
12.45 V / 25 A, 296 W
Checked
1/1301- BMR 457 Uen
Technical Specification
Date
2
1/28701-FGC
101 1835
revC
August
2012
© Ericsson AB
002 = 12 V Standard configuration for 40-60
Vin, n
3
n
4
= 00 or 01
008 = 12 V with positive RC logic configuration
for 36-75 Vin, n
3
n
4
= 04 or 05
009 = 12 V with positive RC logic configuration
for 40-60 Vin, n
3
n
4
= 00 or 01
013 = 12 V with 0.6 V droop load sharing
function configuration (36-75 Vin, n
3
n
4
= 06 or
07)
014 = 12.45 V with 0.6V droop load sharing
function configuration (36-75 Vin, n
3
n
4
= 06 or
07)
016 = 12 V with 0.6 V droop load sharing
function configuration (40-60 Vin, n
3
n
4
= 11 or
12)
017 = 12.45 V with 0.6V droop load sharing
function configuration (40-60 Vin, n
3
n
4
= 11 or
12)
xxx = Application Specific Configuration
B
Product Number and Packaging
BMR457 n
1
n
2
n
3
n
4
/n
5
n
6
n
7
Options
Mechanical pin
option
Mechanical
option
Hardware option
Configuration file
Optional
designation
n
1
Description
0 = Standard pin length 5.33 mm
note 1
1 = Surface mount option
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)
0 = Open frame
1 = Baseplate
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
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
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
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
n
5
n
6
n
7
001 = 12 V Standard configuration for 36-75
Vin, n
3
n
4
= 04 or 05
n
1
x
n
2
n
3
n
4
/
/
n
5
n
6
n
7
x
x
x
/
/
/
x
x
x
Packaging
25 converters(through hole pin)/tray, PE foam
dissipative
20 converters(surface mount pin)/tray,
Antistatic PPE
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.
For application specific configurations contact your local Ericsson Power
Modules sales representative.
n
2
n
3
n
4
General Information
Reliability
The failure rate (
λ
) and mean time between failures
(MTBF= 1/
λ
) is calculated at max output power and an
operating ambient temperature (T
A
) 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
).
Telcordia SR-332 Issue 2 also provides techniques to
estimate the upper confidence levels of failure rates based
on the mean and standard deviation.
Mean steady-state failure rate,
λ
421 n Failures/h
Std. deviation,
σ
60.9 nFailures/h
MTBF (mean value) for the BMR457 series = 2.91 Mh.
MTBF at 90% confidence level = 2.37 Mh
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
ERICSSON [ ERICSSON ]
