DC/DC Converter
VRB_LD-40WHR3 Series
40W, Wide input, isolated & regulated single output
DC/DC converter
FEATURES
wide input voltage range (2:1)
High efficiency up to 91%
No-load power consumption as low as 0.3W
Isolation voltage: 1.5K VDC
Output short circuit, over-voltage, over-current
protection
Operating temperature range: -40℃ to +85℃
Six-sided metal shielding package
EN62368 approval
Patent Protection RoHS
VRB_LD-40WHR3 series are isolated 40W DC-DC products with 2:1 input voltage. They feature efficiency up to 91%, 1500VDC isolation,
operating temperature of -40℃ to +85℃, output short circuit protection, over-voltage protection, over-current protection , which make
them widely applied in data transmission device, battery power supply device, tele-comunication device, distributed power supply system,
remote control system, industrial robot fields.
Selection Guide
②
Input Voltage (VDC)
Output
Efficiency
(%,Min./Typ.)
@ Full Load
Max.
Capacitive
Load(µF)
Certification
Part No.
Nominal
Output Voltage
(VDC)
Output Current
(mA)(Max./Min.)
①
Max.
(Range)
VRB2412LD-40WHR3
12
3333/0
88/90
2700
24
(18-36)
40
VRB2415LD-40WHR3
VRB2424LD-40WHR3
VRB4812LD-40WHR3
VRB4815LD-40WHR3
VRB4824LD-40WHR3
15
24
12
15
24
2667/0
1667/0
3333/0
2667/0
1667/0
90/91
90/91
88/90
90/91
90/91
1680
680
CE
2700
1680
680
48
(36-75)
80
Notes:
①Absolute maximum rating without damage on the converter, but it isn't recommended;
②Efficiency is measured In nominal input voltage and rated output load.
Input Specifications
Min.
--
Typ.
Max.
1894/25
947/25
--
Unit
mA
Item
Operating Conditions
24VDC input
1852/12
Input Current (full load / no-load)
Reflected Ripple Current
Surge Voltage (1sec. max.)
48VDC input
--
926/12
30
mA
Nominal input voltage
24VDC input
--
-0.7
-0.7
13
26
--
--
50
48VDC input
--
100
--
24VDC input
15.5
33
VDC
ms
Input Under-voltage Protection
Starting Voltage
48VDC input
--
24VDC input
--
18
48VDC input
--
--
36
Starting Time
Input Filter
Hot Plug
Nominal input voltage & constant resistance load
10
--
150
Pi filter
Unavailable
Ctrl suspended or connected to TTL high level
(3.5-12VDC)
Module switch on
Ctrl pin connected to GND or low level
(0-1.2VDC)
Ctrl *
Module switch off
--
5
10
mA
Input current when switched off
Note: *The voltage of Ctrl pin is relative to input pin GND.
2018.05.16-A/1
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