0RCM-55S12X Datasheet, PDF (1/6 Pages) Bel Fuse Inc. – ISOLATED DC/DC CONVERTERS

ISOLATED DC/DC CONVERTERS
48 VDC Input 12 VDC/55A Output, 1/4 Brick
0RCM-55S12x RoHS Compliant PRELIMINARY Rev.D
• Isolated
• High Efficiency
• High Power Density
• Low Cost
• Over Temperature Protection
• Input Under-Voltage Lockout
• Input Over-Voltage Shutdown
• OCP/SCP
• Remote On/Off
Description
The 0RCM-55S12x is isolated DC/DC onverter that operates from a nominal 48 VDC source. These converters
use a full bridge power train to provide isolation and step down. These units will provide up to 600 W of output
power from a nominal 55 VDC input. These units are designed to be highly efficient and low cost. Features
include remote on/off, over current protection and under voltage lockout. These converters are provided in an
industry standard quarter -brick package.
Part Selection
Output
Voltage
Input
Voltage
12 Vdc
48 Vdc
Max. Output
Current
55 A
Max. Output
Power
600 W
Typical
Efficiency
97%
Model Number
Active Low
0RCM-55S12L
Model Number
Active High
0RCM-55S120
Notes: 1. Add “G” suffix at the end of the model number to indicate Tray Packaging.
2. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.
Absolute Maximum Ratings
Parameter
Min
Typ
Max
Notes
Input Voltage (continuous)
-0.3 V
-
-0.3 V
-
80 V
57 V
Non-operating
Operating
Remote On/Off (Active Low)
1V
-
-0.3 V
-
18 V
0.6 V
Module Off
Module On
Remote On/Off (Active High)
1V
-
-0.3 V
-
18 V
0.6 V
Module On
Module Off
Ambient Temperature
-40 °C
-
85 °C
Storage Temperature
-55 °C
-
125 °C
Input Specifications
Parameter
Input Voltage
Input Current (full load)
Input Current (no load)
Remote Off Input Current
Input Reflected Ripple Current (pk-pk)
Input Reflected Ripple Current (rms)
I²t Inrush Current Transient
Min
38 V
-
-
-
-
-
-
Typ
-
-
80 mA
5 mA
40 mA
30 mA
TBD
Max
55 V
14.5 A
150 mA
10 mA
100 mA
50 mA
-
Notes
Vin=38 V
Active High
Tested with simulated source
impedance of 12 uH, 5 Hz to 20 MHz;
use a 100 uF/100 V electrolytic
capacitor and 1 uF/100 V ceramic
capacitor at the input.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com