MORNSUN reserves the copyright

Specifications subject to change without notice.

PWA_LT_1W5 & PWB_LT_1W5

A/2-2008

Page 1 of 2

PWA_LT-1W5 & PWB_LT-1W5 Series

1.5W, WIDE INPUT ISOLATED & REGULATED

SINGLE/DUAL OUTPUT DC/DC CONVERTER

MINIATURE SMD PACKAGE

FEATURES

PRODUCT PROGRAM

Input

Output

Voltage (VDC)

Current (mA)

Part

Number

Nominal

Range

Max**

Voltage

(VDC)

Max

Min

Efficiency

(%, Typ)

PWA2405LT-1W5

±5

±150

±15

74

PWA2412LT-1W5*

±12

±63

±6

78

PWA2415LT-1W5*

±15

±50

±5

80

PWB2403LT-1W5*

3.3

455

45

72

PWB2405LT-1W5*

5

300

30

76

PWB2409LT-1W5*

9

167

17

78

PWB2412LT-1W5*

12

125

12

79

PWB2415LT-1W5*

24

9.0-36

40

15

100

10

80

PWA4805LT-1W5*

±5

±150

±15

74

PWA4812LT-1W5*

±12

±63

±6

76

PWA4815LT-1W5*

±15

±50

±5

78

PWB4803LT-1W5*

3.3

455

45

72

PWB4805LT-1W5*

5

300

30

76

PWB4809LT-1W5*

9

167

17

78

PWB4812LT-1W5*

12

125

12

79

PWB4815LT-1W5*

48

18-72

80

15

100

10

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.

ISOLATION SPECIFICATIONS

Item

Test Conditions

Min

Typ

Max

Units

Isolation voltage

Tested for 1 minute and 1mA max

1500

VDC

Isolation resistance

Test at 500VDC

1000

M

Ω

Isolation Capacitance

Input/Output

85

pF

OUTPUT SPECIFICATIONS

Item

Test conditions

Min

Typ

Max

Units

Output Power

See above products program

0.15

1.5

W

Positive voltage accuracy

Refer to recommended circuit

±1

±3

Negative voltage accuracy Refer to recommended circuit

±3

±5

Load Regulation

From 10% to 100% load

±0.5

±1.5*

Line Regulation

Input voltage from low to high

±0.2

±0.75

%

Temperature Drift (Vout)

Refer to recommended circuit

0.03

%/

°C

Output ripple& Noise**

20MHz Bandwidth

35

75

mVp-p

Switching Frequency

100% load, nominal input voltage

300

KHz

*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.

Wide (4:1) Input Range

Short Circuit Protection(automatic recovery)

1500VDC Isolation

Operating Temperature: -40

°C to +85°C

No Heat Sink Required

No external component required

MTBF>1,000,000 hours

RoHS Compliance

APPLICATIONS

The PWA_LT-1W5 & PWB_LT-1W5 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

≤4:1);

2) Where isolation is necessary between input

and output (Isolation Voltage

≤1500 VDC);

3) Where the regulation of the output voltage

and the output ripple noise are demanded.

MODEL SELECTION

PWA2405LT-1W5

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

Note:

1. All specifications measured at TA=25

°C, humidity<75%, nominal input voltage and rated output load unless

Otherwise specified.

2. See below recommended circuits for more details.