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URF_LP-20W

2013.05.24-A/1

Page 1of 6

URF_LP-20W SERIES

20W,WIDE INPUT, HIGH ISOLATED & REGULATED

SINGLE OUTPUT DC-DC CONVERTER

Patent Protected

RoHS

PART NUMBER SYSTEM

URF 2405LP -20W

R at e d Po w er

Pa c ka g e Sty le

O u tp u t Vo lta ge

In p u t Vo lta ge

Pr o d u c t Se r ies

FEATURES

● Efficiency up to 89%

● 4:1 wide input voltage range

● Low temperature rise

● Short circuit protection

● 3KVAC isolation

● Operating temperature range:

-40

°C ~ +85°C

● Industry standard pinout

● Industrial level specifications

● Meet CISPR22/EN55022 CLASS A

APPLICATION

URF_LP-20W series are applied to wide voltage

range input situation such as power systems, data

transmission device, battery power supply device,

telecommunication device, distributed power supply

system, remote control system, industrial robot system

etc.

SELECTION GUIDE

Input Voltage(VDC)

Output Current (mA)

Input Current

(mA)(typ.)

Model

①

Nominal

(Range)

Max

②

Output

Voltage

(VDC)

Max.

Min.

@Max.

Load

@No Load

Reflected

Ripple

Current

(mA,typ.)

Max.

Capacitive

Load (

µF)

Efficiency

③

(%, typ.)

@Max. Load

URF2405LP-20W

5

4000

200

947

60

10000

88

URF2412LP-20W

12

1667

84

947

15

1600

88

URF2415LP-20W

15

1334

67

937

15

1000

89

URF2424LP-20W

24

(9-36)

40

24

834

42

937

20

500

89

URF4805LP-20W

5

4000

200

473

35

10000

88

URF4812LP-20W

12

1667

84

473

10

1600

88

URF4815LP-20W

15

1334

67

469

10

1000

89

URF4824LP-20W

48

(18-75)

80

24

834

42

469

10

30

500

89

Note: ①series with suffix

“A2S” are chassis mounting，with suffix “A4S” are DIN-Rail mounting,

for example URF2405LP-20WA2S is chassis mounting ,URF2405LP-20WA4S is DIN-Rail mounting ;

②Absolute maximum rating without damage on the converter;

③The efficiency of "A2S" and "A4S" is approx. 2% lower for the protection of inverse polarity.

INPUT SPECIFICATIONS

Item

Test Conditions

Min.

Typ.

Max.

Unit

24VDC input

-0.7

--

50

Input Surge Voltage (1sec.max.)

48VDC input

-0.7

--

100

24VDC input

--

--

9

Start-up Voltage

48VDC input

--

--

17.8

24VDC input

7.8

--

--

Under Voltage Shutdown

48VDC input

16

--

--

VDC

Start-up Time

Nominal input& constant resistance load

--

10

--

ms

Models ON

Ctrl open or connect TTL high level (2.5-12VDC)

Models OFF

Ctrl connect GND or low level (0-1.2VDC)

Ctrl*

Input current (Models OFF)

--

1

--

mA

Input Filter

Pi Filter

Note: *The Ctrl control pin voltage is refer to GND.