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STK73903 Datasheet(PDF) 1 Page - Inchange Semiconductor Company Limited

Part No. STK73903
Description  Self-excitation Type Feedback Control Switching Regulator
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Maker  ISC [Inchange Semiconductor Company Limited]
Homepage  http://www.iscsemi.cn
Logo ISC - Inchange Semiconductor Company Limited

STK73903 Datasheet(HTML) 1 Page - Inchange Semiconductor Company Limited

  STK73903 Datasheet HTML 1Page - Inchange Semiconductor Company Limited STK73903 Datasheet HTML 2Page - Inchange Semiconductor Company Limited STK73903 Datasheet HTML 3Page - Inchange Semiconductor Company Limited  
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Thick Film Hybrid IC
INCHANGE
STK73902
Self-excitation Type Feedback Control
Switching Regulator
Features
Package Dimensions
﹒Power MOSFET devices
unit:mm
﹒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
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


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