ISOLATED DC/DC CONVERTERS
24 Vdc Input
8 Vdc / 5 A Output
1/16 Brick
xRSB-50R08x
RoHS Compliant
Rev.A
•
•
•
•
•
•
•
Isolated
•
•
•
•
•
•
•
Input Under Voltage Lockout
Output Over Voltage Shutdown
OCP/SCP
Fixed Frequency (600 kHz)
High Efficiency
High Power Density
Low Cost
Over Temperature Protection
Remote On/Off (option)
Output Voltage Trim
Basic Insulation
Positive/Negative Remote Sense
Through Hole and SMT (option)
Description
The xRSB-50R08x series are isolated dc/dc converters that operate from a nominal 24 Vdc source. These units
will provide up to 40 W of output power from a nominal 24 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 sixteenth brick package.
Part Selection
Output
Input
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Model Number
Active Low
Model Number
Active High
Voltage
Voltage
8 V
18 V - 36 V
5 A
40 W
90%
xRSB-50R08L
xRSB-50R080
Notes: 1. Add “G” suffix at the end of the model number to indicate Tray Packaging. Replace”x” with “S” to
indicate SMT package, or “0” to indicate through hole package.
2. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.
Absolute Maximum Ratings
Parameter
Input Voltage (continuous)
Remote On/Off
Min
-0.3 V
-0.3 V
-
Typ
Max
40 V
Notes
-
-
-
-
-
18 V
I/O Isolation Voltage
Ambient Temperature
Storage Temperature
1500 V
-40 °C
-55 °C
85 °C
125 °C
Input Specifications
Parameter
Input Voltage
Min
18 V
Typ
24 V
-
Max
36 V
3.5 A
Notes
Input Current (full load)
Input Current (no load)
Remote Off Input Current
-
-
-
80 mA
1 mA
160 mA
3 mA
Tested with simulated source impedance of
15 uH, 5 Hz to 20 MHz; use a 100 uF/100 V
electrolytic capacitor with ESR=1 ohm max at
200 kHz at the input.
Input Reflected Ripple Current (pk-pk)
-
-
20 mA
50 mA
Input Reflected Ripple Current (rms)
3 mA
7 mA
I2t Inrush Current Transient
Turn On Voltage Threshold
Turn Off Voltage Threshold
-
-
-
0.01 A2s 0.02 A2s
17 V
16 V
-
-
Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com