E
SECSUND
Approved
Prepared (also subject responsible if other)
No.
Ericsson Internal
PRODUCT SPECIFICATION
Rev
Reference
1 (17)
BMR457 series
SEC/D (Julia You)
Fully
regulated Advanced
Bus
Converters
EZHIXZH
2012-08-24
Input 36-75 V, Output up to
25
A /
300
W
Checked
2/1301-BMR 457
Technical Specification
Uen
Date
5
1/28701-FGC
101 1835
revC
August
2012
© Ericsson AB
C
L
Absolute Maximum Ratings
Characteristics
T
P1
T
S
V
I
V
iso
V
tr
V
RC
V Logic I/O
Operating Temperature (see Thermal Consideration section)
Storage temperature
Input voltage
Isolation voltage (input to output test voltage), see note 1
Input voltage transient according to ETSI EN 300 132-2 and Telcordia GR-1089-
CORE
Remote Control pin voltage
(see Operating Information section)
SALERT, CTRL, SCL, SDA, SA0, SA1
-0.3
-0.3
min
-40
-55
-0.5
typ
max
+125
+125
+80
+65*
2250
+100
+80*
18
3.6
Unit
°C
°C
V
Vdc
V
V
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 in the Electrical Specification. 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 750 Vdc.
*) Apply for the narrow input version V
I
= 40-60 V.
Fundamental Circuit Diagram
+IN
Driver
+OUT
-OUT
-IN
Auxillary
Supply
Driver
Control
RC
RC isolation
ERICSSON [ ERICSSON ]
