XRSB-40U_11 Datasheet, PDF (5/21 Pages) Bel Fuse Inc. – ISOLATED DC/DC CONVERTERS

ISOLATED DC/DC CONVERTERS
24 Vdc/48 Vdc Input 1.2 Vdc - 12 Vdc / 18 A - 3.5 A Outputs, 1/16 Brick
Converter
Apr. 07, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
General Specifications
Parameter
Min
Typ
Max
Efficiency
Vo=1.2 V
78
82
-
Vo=1.5 V
79
84
-
Vo=1.8 V
81
85
-
Vo=2.5 V
83
86
-
Vo=3.3 V
85
87.5
-
Vo=5.0 V
85
87
-
Vo=12 V
83
85
-
Switching Frequency
Vo=1.2 V -12 V 450
500
550
Vo=1.8 V 500
550
600
Isolation Capacitance
-
3900
-
Over Temperature Protection
-
125
-
Output Voltage Trim Range
Over Voltage Protection
MTBF
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
90
-
110
-
130
160
TBD
1.30 x 0.90 x 0.493
33.02 x 22.86 x 12.53
1.30 x 0.90 x 0.507
33.02 x 22.86 x 12.89
Unit
Notes
%
%
%
%
Vin=48 V, full load
%
%
%
KHz
KHz
pF
C
% Vo
% Vo
-
The OTP threshold is set at 125C in
non-latch mode, and the module will
restart automatically when
temperature falls down to 115C.
Test conditions: Vin=48 V, full load
and short the feedback optocoupler.
Calculated Per Bell Core SR-332 (IO
= Nominal; Ta = 25 C)
- SRSB-40Uxxx
- 0RSB-40Uxxx
Weight
-
14
-
g
Note: All specifications are typical at 25 C unless otherwise stated.
Control Specifications
Parameter
Min
Typ
Max
Unit
Notes
Remote On/Off
Signal Low (Unit On)
-0.3
Active Low
-
0.8
V
When Remote On/Off pin is
Signal High (Unit Off)
2.4
-
18
V _{open, for active low option,}
Signal Low (Unit Off)
-0.3
-
0.8
V ^{unit is off; for active high}
Active High
Signal High (Unit On)
2.4
-
18
V
option, unit is on
Current Sink
-
0
-
1
mA
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302  Tel [phone]  Fax [phone]  www.belfuse.com
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