STK73902 Datasheet, PDF (1/3 Pages) Inchange Semiconductor Company Limited – Self-excitation Type Feedback Control Switching Regulator

Thick Film Hybrid IC
STK73902
Self-excitation Type Feedback Control
Switching Regulator
INCHANGE
‹ Features
Power MOSFET devices
Feedback control for high output voltage precision
Driver circuit on-chip
Overcurrent protection circuit on-chip
Pin compatible with all other devices in the same
series of devices with 110 to 280W power ratings
Higher oscillator frequency allows the use of
smaller pulse transformers
‹ Applications
CRT/CTV power supplies
Office automation equipment power supplies
Package Dimensions
unit:mm
‹ Block Diagram
Pin Functions
(1) Amplifier circuit control
(2) Ground
(3) TR1 gate
(4) Drive voltage input
(5) Starting voltage input
(6) OCP setting level input
(7) OCP input-voltage dependency
detection input
(8) TR1 source
(9) TR1 source
(11) TR1 drain
(12) TR1 drain