E
SECSUND
Approved
Prepared (also subject responsible if other)
No.
Ericsson Internal
PRODUCT SPECIFICATION
Rev
Reference
2 (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
6
1/28701-FGC
101 1835
revC
August
2012
© Ericsson AB
C
L
Functional Description
T
P1
, T
P3
= -40 to +90ºC, V
I
= 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: T
P1
, T
P3
= +25°C, V
I
= 53 V, max I
O
, unless otherwise specified under Conditions
Configuration File: 190 10-CDA 102 0315/001
Characteristics
PMBus monitoring accuracy
VIN_READ
VOUT_READ
IOUT_READ
TEMP_READ
Input voltage
Output voltage
Output current
Temperature
Factory default
Input Under Voltage Setpoint accuracy
Lockout,
UVLO
Hysteresis
Delay
(Output voltage)
Configurable via PMBus, Note 1
Over/Under Voltage
Factory default
Protection,
VOUT_OV_FAULT_LIMIT
OVP/UVP
Configurable via PMBus, Note 1
fault response time
Over Current
Protection,
OCP
Setpoint accuracy
IOUT_OC_FAULT_LIMIT
fault response time
Over Temperature
Protection,
OTP
OTP_FAULT_LIMIT
OTP hysteresis
fault response time
Logic Input/Output Characteristics
Logic input low (V
IL
)
Logic input high (V
IH
)
Logic output low (V
OL
)
Logic output high (V
OH
)
Bus free time T(BUF)
Note 1: See Operating Information section.
Note 2: PMBus timing parameters according to PMBus spec.
Conditions
min
-2
typ
±0.5
±0.1
±0.15
-
5
32
0.5
2
-
300
0
-
15.6
-
200
25
-
200
125
10
max
2
1.0
6
0.6
10
-
1
-
-
-
-
16
-
16
-
6
-
100
-
-
125
125
-
1.1
-
0.25
-
Unit
%
%
%
A
ºC
V
I
= 53 V
V
I
= 53 V, 50-100% of max I
O
V
I
= 53 V, 10% of max I
O
Controller IC internal sensor
-1.0
-6
-0.6
0
-
0
Fault Protection Characteristics
V
V
V
V
μ
s
Factory default
Configurable via PMBus of
threshold range, Note 1
Factory default
-
0
-
-
0
-
V
OUT
-
-6
-
0
-
-
-50
0
-
-
2.1
-
2.7
1.3
VOUT_UV_FAULT_LIMIT
V
V
V
V
μ
s
Io
Factory default
Configurable via PMBus, Note 1
Factory default
Configurable via PMBus, Note 1
Factory default
Configurable via PMBus, Note 1
%
A
μ
s
°C
μ
s
300
-
-
-
-
-
CTRL, SA0, SA1, PG, SCL, SDA,
CTRL, PG, SALERT, SCL, SDA
I
OL
= 6 mA
CTRL, PG, SALERT, SCL, SDA
I
OH
= -6 mA
Note 2
V
V
V
V
us
ERICSSON [ ERICSSON ]
