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Specifications subject to change without notice.

WRD_S-1W & WRD_S-2W

A/1-2008

Page 1 of 2

WRD_S-1W & WRD_S-2W Series

1W & 2W, WIDE INPUT, ISOLATED & REGULATED

TWIN OUTPUT SIP DC-DC CONVERTER

PRODUCT PROGRAM

Input

Output

Voltage (VDC)

Current (mA)

Part

Number

Nominal

Range

Max*

No-load

(mA)(Typ)

Voltage

(VDC)

Max

Min

Efficiency

(%, Typ)

WRD050505S-1W

5

100

10

70

WRD050909S-1W

9

55

5

71

WRD051212S-1W

12

42

4

73

WRD051515S-1W

15

33

3

72

WRD050505S-2W

5

200

20

67

WRD050909S-2W

9

111

11

71

WRD051212S-2W

12

83

8

72

WRD051515S-2W

5

4.5-9.0

11

40

15

67

7

73

WRD120505S-1W

5

100

10

73

WRD120909S-1W

9

55

5

76

WRD121212S-1W

12

42

4

78

WRD121515S-1W

15

33

3

78

WRD120505S-2W

5

200

20

75

WRD120909S-2W

9

111

11

77

WRD121212S-2W

12

83

8

80

WRD121515S-2W

12

9.0-18

22

20

15

67

7

79

WRD240505S-1W

5

100

10

76

WRD240909S-1W

9

55

5

77

WRD241212S-1W

12

42

4

78

WRD241515S-1W

15

33

3

77

WRD240505S-2W

5

200

20

76

WRD240909S-2W

9

111

11

78

WRD241212S-2W

12

83

8

80

WRD241515S-2W

24

18-36

40

10

15

67

7

79

WRD480505S-1W

5

100

10

73

WRD480909S-1W

9

55

5

75

WRD481212S-1W

12

42

4

77

WRD481515S-1W

15

33

3

77

WRD480505S-2W

5

200

20

75

WRD480909S-2W

9

111

11

78

WRD481212S-2W

12

83

8

79

WRD481515S-2W

48

36-72

80

5

15

67

7

78

*Input voltage can

’t exceed this value, or will cause the permanent damage.

Note: The load shouldn't be less than 10%, otherwise ripple will increase dramatically.

Operation under 10% load will not damage the converter; However, they may not meet all specification listed.

OUTPUT SPECIFICATIONS

Item

Test Conditions

Min

Typ

Max

Units

Positive voltage accuracy

Refer to recommended circuit

±1

±3

Negative voltage accuracy Refer to recommended circuit

±3

±5

Load regulation

10% to 100% load

±0.5

±1*

Line regulation

Input voltage from low to high

±0.2

±0.5

%

Temperature drift (Vout)

Refer to recommended circuit

±0.03

%/

°C

Ripple & Noise**

20MHz Bandwidth

50

100

mVp-p

Switching frequency

Input voltage range 100% load

300

kHz

FEATURES

Wide (2:1) Input Range

Miniature SIP Package

I/0 Isolation 1000VDC

Short Circuit Protection(automatic recovery)

External On/Off control

Internal SMD construction

Operating Temperature: -40

°C to +85°C

RoHS Compliance

APPLICATIONS

The WRD_S-1W Series are specially designed

for applications where a wide range input voltage

power supplies are isolated from the input power

supply in a distributed power supply system on a

circuit board.

These products apply to:

1) Where the voltage of the input power supply

is wide range (voltage range

≤2:1);

2) Where isolation is necessary between input

and output & Vout1 and Vout2 (Isolation Voltage

≤1000VDC);

3) Where the regulation of the output voltage

and the output ripple noise are demanded.

MODEL SELECTION

WRD051212S-1W

1st Output Voltage

2nd Output Voltage

Package Style

Rated Power

Input Voltage

MORNSUN Science & Technology co.,Ltd.

Address: 2th floor 6th building, Huangzhou Industrial

District, Guangzhou, China

Tel: 86-20-38601850

Fax:86-20-38601272

Http://www.mornsun-power.com

*Dual output models unbalanced load:

±5%.

**Test ripple and noise by

“parallel cable” method. See detailed operation instructions at Testing of Power

Converter section, application notes.