0RHB-Q2T53X Datasheet, PDF (1/8 Pages) Bel Fuse Inc. – ISOLATED DC/DC CONVERTERS

ISOLATED DC/DC CONVERTERS
48 Vdc Input 53 Vdc/8 A Output
Sep. 19, 2011
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
0RHB-Q2T53x
RoHS Compliant PRELIMINARY Rev.D
 Isolated
 Fixed Frequency
 High Efficiency
 OCP/SCP
 High Power Density
 Over Temperature Protection
 Low Cost
 Remote On/Off
 Input Under Voltage Lockout
 Output Voltage Trim
 Output Over-Voltage Shut Down
 Basic Insulation
 Class 2, Category 2, Isolated DC/DC Converter (refer to IPC-9592)
Description
The 0RHB-Q2T53x is isolated DC/DC converters that operate from a nominal 48 Vdc source. These units will
provide up to 424W of output power from a nominal 48 Vdc input. This unit is designed to be highly efficient and
low cost . Features include remote on/off, over current protection and input undervoltage lockout. This converter
is provided in an industry standard half- brick package.
Part Selection
Output
Voltage
Input Voltage
53 Vdc
48 Vdc
Max. Output
Current
8A
Max. Output
Power
424W
Typical
Efficiency
94%
Model Number
Active High
0RHB- Q2T530
Model Number
Active Low
0RHB- Q2T53L
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
-
80 V
Remote On/Off
-0.3 V
-
18 V
I/O Isolation Voltage
-
-
1500 V
Ambient Temperature
-40 C
-
85 C
Storage Temperature
-55 C
-
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
Input Voltage
Input Current (full load)
Input Current (no load)
Remote Off Input Current
Min
36 V
-
-
-
Typ
48 V
-
80 mA
20 mA
Max
72 V
12.6 A
120 mA
30 mA
Input Reflected Ripple Current (rms)
-
-
200 mA
I²t Inrush Current Transient
Turn-on Voltage Threshold²
Turn-off Voltage Threshold²
-
-
1 A²s
33 V
-
32 V
-
35 V
34 V
Note: All specifications are typical at 25 C unless otherwise stated.
Notes
Tested with simulated source impedance
of 12 uH, 5 Hz to 20 MHz; Use 150 uF/100
V electrolytic capacitor with ESR=1 ohm
max, at 200 kHz@25°C.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302  Tel [phone]  Fax [phone]  www.belfuse.com
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