Goldstar FFH-DV55AX Service Manual BLK

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BLOCK DIAGRAM

THERMAL SHUTDOWN

BANDGAP REFERENCE

OVERVOLTAGE
PROTECTION

SOA PROTECTIO N

SHORTCIRCUIT
PROTECTION

1

4

3

2

Vin

Vdis

Vo

GND

HIGH / LOW OUTPUT

ON / OFF

Q1

R1

R2

­+

­+

1.4V

2-9 2-10

BLOCK DIAGRAM