Rev. B 03/10

22

TOP264-271

www.powerint.com

Figure 28. Layout Considerations for TOPSwitch-JX Using V-Package and Operating at 132 kHz.

+

-

HV

+

- DC

OUT

PI-5793-030910

Y-

Capacitor

Isolation Barrier

T1

Output

Rectifier

RLS2

RLS1

RPL1

ROV

J1

J2

U1

R6

D5

C6 R7

R8

CBP

RIL

DB

CB

R10

R9

VZOV

C9

RPL2

VR1

HS1

C4

U2

R15

R13

R17

JP2

U4

C21

R21

R20

C19

L3

HS2

D8

C16

R12

C18

C17

Output Filter

Capacitors

HF LC

Post-Filter

Input Filter

Capacitor

Transformer

X

F

D

C

S

V

Clamp

Circuit

Figure 29. Layout Considerations for TOPSwitch-JX Using E-Package and Operating at 132 kHz.

DC

IN

PI-5752-012510

Output

Rectifiers

Transformer

L2

C18

C16

U3

C11

VR1

C3

C4

R5

D5

C10

R16

DB

CB

ROV

RLS1

RPL1

R12

U1

RIL

CBP

VZOV

T1

U2

Y-

Capacitor

C17

D8

D9

J2

J1

Output Filter

Capacitors

HF LC

Post-Filter

Input Filter

Capacitor

Clamp Circuit

Maximize Copper Area

for Optimum Heat Sinking

DC

OUT

–