0RCM-20S Datasheet, PDF (1/3 Pages) Bel Fuse Inc. – ISOLATED DC/DC CONVERTERS

ISOLATED DC/DC CONVERTERS
48 VDC Input 12 VDC/20 A Output, 1/4 Brick
0RCM-20S/30S Series RoHS Compliant PRELIMINARY
• Industry standard quarter-brick package
• Up to 240 W at 96% efficiency
• 1500 V isolation
• Remote on/off
• Low cost
• Safety Agency Approvals
Description
The 0RCM-20S/30S “Cimarron” Series are isolated DC/DC
converters that operate 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
240 W of output power from a nominal 48 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 V
8V
48 V
48 V
Max. Output
Current
20 A
30 A
Max. Output
Power
240 W
240 W
Typical
Efficiency
96%
96%
Model Number
0RCM-20S12L
0RCM-30S08L
Notes: 1. Change last character in part number from “L” to “H” for Active High On/Off Logic (e.g. 0RCM-20S12H).
2. Add “G” suffix at the end of the model number to indicate Tray Packaging.
3. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.
Input Specifications
Parameter
Min
Input Voltage Range
36 V
Input Current (no load)
-
Input Current (full load)
-
Reflected Ripple Current(pk-pk)
-
Reflected Ripple Current(rms)
-
Typ
48 V
-
-
-
-
Max
55 V
80 mA
5.3 A
100 mA
50 mA
Notes
Reflected ripple current through a 12
uH source inductor at nominal input
voltage and rated load current.
Output Specifications
Parameter
Output Voltage
0RCM-20S12x
0RCM-30S08x
Output Current
0RCM-20S12x
0RCM-30S08x
Load Regulation
Ripple and Noise (pk-pk)
Ripple and Noise (rms)
Min
36 Vin
8.8 V
5.8 V
0A
0A
-
-
-
Typ
48 Vin
12.0 V
8.0 V
-
-
-
-
-
Max
55 Vin
14.0 V
9.4 V
20 A
30 A
5%
100 mV
45 mV
Notes
Setpoint at no load.
0 to 20 MHz BW, use 1.0 uF
ceramic cap and 15 uF/100 m ohm
tantalum cap at the output.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com