VRYB-40T03X Datasheet, PDF (1/6 Pages) Bel Fuse Inc. – ISOLATED DC/DC CONVERTERS

ISOLATED DC/DC CONVERTERS
48 Vdc Input 3.3 Vdc /12 A Output
VRYB-40T03x RoHS Compliant Rev.A
• Isolated
• High Efficiency
• High Power Density
• Fixed Frequency (400 kHz)
• Low Cost
• Input Under-Voltage Lockout
• Output Over-Voltage Shutdown
• OCP/SCP
• Over Temperature Protection
• Remote On/Off
• Output Voltage Trim
• Positive/Negative Remote Sense
Description
The VRYB-40T03x is isolated dc/dc converter that operates from a nominal 48 Vdc source. This unit will provide
up to 40 W 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 under-voltage lockout. This converter is provided in
an industry SIP package.
Part Selection
Output
Input Voltage
Voltage
3.3 Vdc 36 Vdc - 75 Vdc
Max. Output
Current
12 A
Max. Output
Power
40 W
Typical
Efficiency
89%
Model Number
Active High
VRYB-40T033
Model Number
Active Low
VRYB-40T03L
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
Input Voltage (continuous)
-0.3 V
-
Remote On/Off
-0.3 V
-
I/O Isolation Voltage
-
-
Ambient Temperature
-40 °C
-
Storage Temperature
-55 °C
-
Max
80 V
18 V
1500 V
85 °C
125 °C
Notes
Input Specifications
Parameter
Input Voltage
Input Current (full load)
Input Current (no load)
Remote Off Input Current
Input Reflected Ripple Current (rms)
Min
36 V
-
-
-
-
Typ
48 V
-
40 mA
8 mA
4 mA
Max
75 V
1.5 A
60 mA
15 mA
8 mA
Input Reflected Ripple Current (pk-pk)
-
25 mA
50 mA
I²t Inrush Current Transient
-
0.01 A²s 0.02 A²s
Turn-on Voltage Threshold
Turn-off Voltage Threshold
32 V
30 V
34 V
32 V
35 V
33 V
Note: All specifications are typical at 25 °C unless otherwise stated.
Notes
Tested with simulated source impedance
of 10 uH, 5 Hz to 20 MHz; use a 100
uF/100 V electrolytic capacitor with ESR
= 1 ohm max. at 200 kHz at 25 °C.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com