DC/DC Converter

URF_LP-20WR3 Series

2014.07.22-A/0

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MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

20W,Ultra wide input, isolated & regulated single

output , DIP package, DC-DC converter

FEATURES

Ultra wide range of input voltage (4:1)

Efficiency up to89%

No-load power consumption as low as 0.2W

Isolation voltage :3K VDC

Operating temperature range: -40℃ to +85℃

Input under-voltage protection, output short

circuit

protection,

over-voltage

protection,

Over-current protection

Meet CISPR22/EN55022 CLASS A

International standard pin-out

A2S (wring mounting) and A4S (35mm rail

mounting)

products

featuring

anti-reverse

connection for input

URF_LP-20WR3 series are applied to ultra wide voltage range input , high isolation such as power industry, data transmission device, battery

power supply device, tele-comunication device, distributed power supply system, remote control system, industrial robot system etc.

Selection Guide

Input Voltage (VDC)

Output

Efficiency

③

(%,Min./Typ.)

@ Full Load

Max. Capacitive

Load(μF)

Nominal

(Range)

Output Voltage

(VDC)

Output Current (mA)

(Max./Min.)

URF2403LP-20WR3

24

(9-36)

40

3.3

5000/250

84/86

10000

URF2405LP-20WR3

5

4000/200

87/89

10000

URF2409LP-20WR3

9

2222/111

86/88

4700

URF2412LP-20WR3

12

1667/84

86/88

1600

URF2415LP-20WR3

15

1334/67

87/89

1000

URF2424LP-20WR3

24

833/42

87/89

500

URF4803LP-20WR3

48

(18-75)

80

3.3

5000/250

84/86

10000

URF4805LP-20WR3

5

4000/200

86/88

10000

URF4812LP-20WR3

12

1667/84

86/88

1600

URF4815LP-20WR3

15

1334/67

87/89

1000

URF4824LP-20WR3

24

833/42

87/89

500

Notes：

①

product model with a suffix of “A2S” means chassis mounting and that with a suffix of “A4S” indicates DIN-Rail mounting (e.g. URF2405LP-20WR3A2S means

chassis mounting; URF2405LP-20WR3A4S means DIN-Rail mounting );

②

Absolute maximum rating without damage on the converter, but it isn't recommended;

③

Efficiency 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

Min.

Typ.

Max.

Unit

Input Current (full load / no-load)

24VDC input

3.3V, 5V output

--

936/20

--

mA

Others

--

936/5

--

48VDC input

3.3V, 5V output

--

468/10

--

Others

--

468/4

--

Reflected Ripple Current

24VDC input

--

30

--

48VDC input

--

30

--

Input impulse Voltage(1sec. max.)

24VDC input

-0.7

--

50

VDC

48VDC input

-0.7

--

100

Starting Voltage

24VDC input

--

--

9

48VDC input

--

--

18

under-voltage turn-off

24VDC input

5.5

6.5

--

14.0

15.5

--