11

LT1372/LT1377

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-

tation that the interconnection of circuits as described herein will not infringe on existing patent rights.

LT1372/LT1377

S/S

GND

GND S

NFB

5

4

7

6

8

3

1

+

+

R4

2k

R2

4.99k

1%

R1

1k

1%

C4

0.047

µF

C6

0.1

µF

–3V

250mA

LT1372 • TA05

5V

C3

47

µF

16V

C1

22

µF

10V

C2

47

µF

16V

C5

0.0047

µF

•

•

4

1

3

L1*

2

D1**

SUMIDA CLS62-100L

MOTOROLA MBR0520LT3

PATENTS MAY APPLY

*

**

†

+

Dual Output Flyback Converter with Overvoltage Protection

Positive-to-Negative Converter with Direct Feedback

LT1372/LT1377

FB

2.7V TO 13V

1

3

8

5

2

4

6, 7

*DALE LPE-4841-100MB (605) 665-9301

GND

NFB

LT1372 • TA04

S/S

P6KE-20A

1N4148

MBRS140T3

MBRS140T3

C1

22

µF

R2

1.21k

1%

R1

13k

1%

C2

0.047

µF

C3

0.0047

µF

R3

2k

R5

2.49k

1%

R4

12.1k

1%

–15V

15V

+

C4

47

µF

+

C5

47

µF

+

ON

OFF

2, 3

6, 7

5

T1*

4

8

1

•

•

•

LT1372/LT1377

2.7V TO 16V

1

3

8

5

4

6, 7

*COILTRONICS CTX10-2 (407) 241-7876

GND

NFB

LT1372 • TA03

S/S

D2

P6KE-15A

D3

1N4148

D1

MBRS130LT3

C1

22

µF

C2

0.047

µF

C3

0.0047

µF

R1

2k

R3

2.49k

1%

R2

2.49k

1%

†

–5V

+

C4

47

µF

+

ON

OFF

3V

5V

9V

0.3A

0.5A

0.75A

2

1

4

T1*

3

•

•

OUT

+

+

D2

1N4148

Q2

1N5818

D1

1N4148

562

Ω*

20k

DIMMING

10k

330

Ω

10

1

2

3

4

5

Q1

10

µF

C1

0.1

µF

4.5V

TO 30V

GND

S/S

5

8

4

2

1

6, 7

LT1372/LT1377

2

µF

0.1

µF

L1

33

µH

T1

LT1372 • TA06

C1 = WIMA MKP-20

L1 = COILCRAFT DT3316-333

T1 = COILTRONICS CTX 110609

* = 1% FILM RESISTOR

DO NOT SUBSTITUTE COMPONENTS

Q1, Q2 = ZETEX ZTX849 OR ROHM 2SC5001

LAMP

C2

27pF

5mA MAX

+

2.2

µF

2.7V TO

5.5V

22k

1N4148

OPTIONAL REMOTE

DIMMING

COILTRONICS (407) 241-7876

COILCRAFT (708) 639-6400

ON

OFF

CCFL BACKLIGHT APPLICATION CIRCUITS

CONTAINED IN THIS DATA SHEET ARE

COVERED BY U.S. PATENT NUMBER 5408162

AND OTHER PATENTS PENDING

90% Efficient CCFL Supply