Diodes AP3988/89/90 User Manual

Page 2

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AP3988/89/90

Document number: DS36722 Rev. 3 - 2

2 of 13

www.diodes.com

March 2014

© Diodes Incorporated

AP3988/89/90

A Product Line of

Diodes Incorporated

N

E

W

P

R

O

D

U

C

T

Typical Applications Circuit

+

J1

AC 90-264V

D1 to D4

C2

Rf1

+

C1

D6

L1

T1

FB

C

VCC

CS

+

C3

U1

CPC

C8

R5

C11

Np

Ns

Nfb

D5

C5

R6

Vo+

Vo-

C10

GND

D12

+

C12

R11

R12

C13

+

R10

R3

R8

R9

R7

L2

For AP3990 (12V/1A)

Item

Function

QTY

Item

Function

QTY

C1,C2

10µF/400V, electrolytic

2

U1

AP3990, PDIP-7

1

C3

4.7µF/50V, electrolytic

1

Rf1

2A/250V, fuse

1

C5

1nF/250V, ceramic

1

R3

3.3M

/0.25W

1

C8

0.1µF, 0805

1

R5

3.9

, 0805

1

C10

1nF/250V

AC

, Y1 capacitor

1

R6

150k

, 0.25W

1

C11

1nF, 0805

1

R7

0.62

, 1206

1

C12, C13

470µF/16V

2

R8

31k

, 0805

1

D1 to D6

1N4007, rectifier diode

6

R9

13k

, 0805

1

D12

MBR3100, Schottky diode

1

R10

360

, 0805

1

L1

15mH, Common inductor, EE10

1

R11

27

, 0805

1

L2

10µH/1A, inductor, 0805

1

R12

1.2k

, 0805

1

T1

EE20 core, PC40, transformer

1

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