DC/DC Converter
URB1D_LMD-10WR3 Series
10W, ultra wide input isolated & regulated
single output DC-DC converter
FEATURES
Ultra wide input voltage range (4:1)
High efficiency up to 85%
Enhanced isolation, isolation voltage: 2250VDC
Operating temperature range: -40℃ to +85℃
Input under-voltage Protection, Output short
circuit, over-current, over–voltage protection
Low ripple & noise
EMI meet EN50121-3-2 & CISPR22/EN55022 CLASS
A, without external components
Meets requirements of railway standard
EN50155
Meet the IEC60950, UL60950, EN60950 approval
Reverse voltage protection available with
A2S(Chassis mounting) or A4S(35mm DIN-Rail
mounting)
International standard pin-out
RoHS Patent Protection
URB1D_LMD-10WR3 series are isolated 10W DC-DC products with 4:1 input voltage .Their feature efficiency up to 85%, 2250VDC isolation with
enhanced isolation, operating temperature of -40 ℃to +85℃, Input Under-voltage Protection, Output short circuit, over-current,
over–voltage protection. Railway vehicle electronic equipment widely used in 72V, 96V and 110V.
Selection Guide
③
Input Voltage (VDC)
Output
Efficiency
(%, Min./Typ.)
@ Full Load
Max.
Capacitive
Load(µF)
①
certification
Part No.
Nominal
Output Voltage
(VDC)
Output Current (mA)
②
Max.
(Max./Min.)
(Range)
URB1D03LMD-10WR3
3.3
2400/0
74/76
5400
5400
470
URB1D05LMD-10WR3
URB1D12LMD-10WR3
URB1D15LMD-10WR3
URB1D24LMD-10WR3
5
2000/0
833/0
667/0
417/0
78/80
82/84
82/84
83/85
110
170
--
12
15
24
(40-160)
330
100
Note:
①Series with suffix “H” are heat sink mounting; series with suffix “A2S” are chassis mounting,with suffix “A4S” are DIN-Rail mounting, for example
URB1D05LMD-10WHR3A2S is chassis mounting of with heat sink, URB1D05LMD-10WR3A4S is DIN-Rail mounting of without heat sink; If the application has a
higher requirement for heat dissipation, you can choose modules with heat sink;
②Absolute maximum rating without damage on the converter, but it isn't recommended;
③Efficiency is measured In nominal input voltage and rated output load;A2S (wiring) and A4S (rail) Model due to input reverse polarity protection, minimum
efficiency greater than Min.-2 is qualified.
Input Specifications
Item
Operating Conditions
Nominal input voltage
Nominal input voltage
Min.
--
Typ.
95/3
110/3
Max.
98/8
Unit
mA
3.3V output
Others
Input Current (full load / no-load)
--
117/8
Reflected Ripple Current
Surge Voltage (1sec. max.)
Starting Voltage
--
-0.7
--
28
--
25
--
--
--
180
40
--
100% load
VDC
ms
Shutdown Voltage
33
Nominal input voltage & constant resistance
load
Starting Time
Input Filter
Hot Plug
10
--
Pi filter
Unavailable
2016.11.07-A/0
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