XRSB-40U Datasheet, PDF (1/13 Pages) Bel Fuse Inc. – ISOLATED DC/DC CONVERTERS

ISOLATED DC/DC CONVERTERS
24 Vdc/48 Vdc Input 1.2 Vdc - 12 Vdc / 18 A - 3.5 A Outputs, 1/16 Brick
xRSB-40U Series
RoHS Compliant
Rev.A
• Isolated
• Fixed Frequency
• High Efficiency
• High Power Density
• Low Cost
• Output Voltage Trim
• Basic Insulation
• Remote On/Off Logic (Option)
• Input Under Voltage Lockout
• Output Over Voltage Shutdown
• OCP/SCP
• Over Temperature Protection
• Wide Input Voltage
• Positive/Negative Remote Sense
• Through Hole and SMT(Option)
• Input Over Voltage Protection
Description
The xRSB-40U series are isolated dc/dc converters that operate from a nominal 24 Vdc or 48 Vdc source. These
units will provide up to 40 W of output power from an 18 Vdc - 75 Vdc wide input range. 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
Voltage
Input Voltage
1.2 Vdc
18 Vdc - 75 Vdc
1.5 Vdc
18 Vdc - 75 Vdc
1.8 Vdc
18 Vdc - 75 Vdc
Max. Output
Current
18 A
16 A
14 A
Max. Output
Power
22 W
24 W
25 W
Typical
Efficiency
82%
84%
85%
Model Number
Active Low
xRSB-40UV2L
xRSB-40UV5L
xRSB-40UV8L
Model Number
Active High
xRSB-40UV20
xRSB-40UV50
xRSB-40UV80
2.5 Vdc
3.3 Vdc
5.0 Vdc
18 Vdc - 75 Vdc
18 Vdc - 75 Vdc
18 Vdc - 75 Vdc
12 A
10 A
8A
30 W
33 W
40 W
86%
87.5%
87%
xRSB-40U02L
xRSB-40U03L
xRSB-40U05L
xRSB-40U025
xRSB-40U033
xRSB-40U050
12 Vdc
18 Vdc - 75 Vdc
3.5 A
42 W
85%
xRSB-40U12L xRSB-40U120
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
Min
Typ
Max
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
Notes
Input Specifications
Parameter
Min
Input Voltage
18 V
Input Current (full load)
Vo=1.2 V - 1.8 V
-
Vo=2.5 V - 3.3 V
-
Vo=5.0 V - 12 V
-
Typ
48 V
-
-
-
Max
75 V
2.5 A
3.0 A
3.5 A
Notes
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com