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Specifications subject to change without notice.

WRE_CKS-1W & WRF_CKS-1W

A/0-2008

Page 1 of 2

WRE_CKS-1W & WRF_CKS-1W Series

1W, WIDE INPUT, ISOLATED & REGULATED

DUAL/SINGLE OUTPUT SIP DC-DC CONVERTER

multi-country patent protection

RoHS

PRODUCT PROGRAM

Input

Output

Voltage (VDC)

Current (mA)

Part

Number

Nominal

Range

Max**

Voltage

(VDC)

Max

Min

Efficiency

(%, Typ)

WRE0505CKS-1W *

±5

±100

±10

72

WRE0509CKS-1W *

±9

±55

±6

74

WRE0512CKS-1W *

±12

±42

±4

76

WRE0515CKS-1W *

±15

±33

±3

75

WRF0505CKS-1W *

5

200

20

72

WRF0509CKS-1W *

9

111

11

74

WRF0512CKS-1W *

12

83

8

76

WRF0515CKS-1W *

5

4.5-9.0

11

15

67

7

75

WRE1205CKS-1W

±5

±100

±10

76

WRE1209CKS-1W

±9

±55

±6

78

WRE1212CKS-1W

±12

±42

±4

80

WRE1215CKS-1W

±15

±33

±3

80

WRF1205CKS-1W

5

200

20

76

WRF1209CKS-1W

9

111

11

78

WRF1212CKS-1W

12

83

8

80

WRF1215CKS-1W

12

9.0-18

22

15

67

7

80

WRE2405CKS-1W

±5

±100

±10

78

WRE2409CKS-1W

±9

±55

±6

79

WRE2412CKS-1W

±12

±42

±4

81

WRE2415CKS-1W

±15

±33

±3

81

WRF2405CKS-1W

5

200

20

76

WRF2409CKS-1W

9

111

11

78

WRF2412CKS-1W

12

83

8

81

WRF2415CKS-1W

24

18-36

40

15

67

7

81

WRE4805CKS-1W *

±5

±100

±10

76

WRE4809CKS-1W *

±9

±55

±6

78

WRE4812CKS-1W *

±12

±42

±4

80

WRE4815CKS-1W *

±15

±33

±3

80

WRF4805CKS-1W *

5

200

20

76

WRF4809CKS-1W *

9

111

11

78

WRF4812CKS-1W *

12

83

8

80

WRF4815CKS-1W *

48

36-72

80

15

67

7

80

* Designing.

**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

Output power

0.1

1

W

Positive voltage accuracy

Refer To Recommended Circuit

±1

±3

Negative voltage accuracy

Refer To Recommended Circuit

±3

±5

10% to 100% load(WRF_CKS-1W)

±0.5

±0.75

Load Regulation

10% to 100% load(WRE_CKS-1W) *

±0.75

±1.0

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

25

75

mVp-p

Switching Frequency

Input voltage range 100% load

300

KHz

* Dual output models unbalanced load(25/100%):

±5%Max.

**Test ripple and noise by

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

Converter section, application notes.

FEATURES

Efficiency up to 81%

Wide (2:1) Input Range

I/O Isolation 3000VDC

Short circuit protection(automatic

recovery)

External On/Off control

Internal SMD construction

Operating Temperature: -40

°C to +85°C

UL94-V0 Package

RoHS Compliance

APPLICATIONS

The WRE_CKS-1W & WRF_CKS-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(isolation voltage

≤3000VDC);

3) Where the regulation of the output voltage

and the output ripple noise are demanded.

MODEL SELECTION

WRE2412CKS-1W

Product Series

Input Voltage

Output Voltage

Package Style

Rated Power

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