ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 12 Vdc /6 A Output
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Absolute Maximum Ratings
Unit
Parameter
Min
Typ
Max
Notes
Input Voltage (continuous)
-0.3
-
80
V
Remote On/Off
-0.3
-
-
-
-
-
-
18
1500
-
V
V
I/O Isolation Voltage
Input to Each Output Resistance
Ambient Temperature
Storage Temperature
10M
-40
-55
ohm
C
85
125
C
Note: Ratings used beyond the maximum ratings may cause a reliability degradation of the converter or may
permanently damage the device.
Input Specifications
Parameter
Min
Typ
Max
Unit
Notes
Input Voltage
36
48
75
V
Max Input Current (full load)
Input Current (no load)
-
-
-
-
2.4
100
30
A
50
20
mA
mA
Remote Off Input Current
Tested with simulated source
impedance of 10 uH, 5 Hz to 20 MHz;
use a 47 uF/100 V electrolytic cap
with ESR = 1 ohm max. at 200 kHz at
25 C.
Input Reflected Ripple Current
(pk-pk)
-
-
20
-
30
mA
A2s
I2t Inrush Current Transient
0.1
Input Fuse (not internally)
Turn-on Voltage Threshold
Turn-off Voltage Threshold
Input Over Voltage Lockout
-
-
5
A
V
V
V
33
31
76
34
32
78
35
33
80
Note: All specifications are typical at 25 C unless otherwise stated.
Output Specifications
Parameter
Min
Typ
Max
Unit
Notes
Output Voltage Set Point
11.76
12.0
12.24
V
Load Regulation
line Regulation
-
-
-
±12
±12
±80
±24
±24
mV
mV
mV
Regulation Over Temperature
(-40deg.C-85deg.C)
±120
Vin=72V, max load on output,
20MHz BW, with 10uF tantalum
and 1uF ceramic cap at the output.
Ripple and Noise (rms)
Ripple and Noise (pk-pk)
Output Current Range
-
-
12
50
-
20
80
6
mV
mV
A
0
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2