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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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TS19706CS 데이터시트(PDF) 7 Page - Taiwan Semiconductor Company, Ltd |
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TS19706CS 데이터시트(HTML) 7 Page - Taiwan Semiconductor Company, Ltd |
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7 / 9 page  TS19706CS Taiwan Semiconductor 7 Version: A1605 APPLICATION INFORMATION (CONTINUE) DMG (Zero Current Demegnetization) The output voltage is defined by the auxiliary winding (NAUX) of the fly-back transformer. The DMG pin senses output information to protect against undervoltage (VO < VO_STR) and overvoltage (VO > VO_OVP). When the DMG senses voltage under VO_STR the circuit will operate in short circuit protection mode, fSTR=1/tSTR. When the DMG senses voltage over VO_OVP, the circuit will implement over-voltage protection latch until VCC goes below VCC_OFF. Where : • VOUT_OVP is the output-over-voltage protection point • VOVPS is the over voltage protection signal • VO_STR is the start-up timer • NAUX is the number of auxiliary-winding turns • NSEC is the number of secondary-winding turns D2 D2 D1 OVPS AUX SEC O_OVP R R R V N N V + × × = D2 D2 D1 AUX SEC O_STR R R R 3 N N V + × × = |
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