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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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SC1109BSTR 데이터시트(PDF) 5 Page - Semtech Corporation |
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SC1109BSTR 데이터시트(HTML) 5 Page - Semtech Corporation |
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5 / 19 page  5 2004 Semtech Corp. www.semtech.com POWER MANAGEMENT SC1109 Block Diagram R S Q STBY VOSENSE GND + - OSCILLATOR 5VSTBY + - PHASE BCAP+ BST SET DOMINATES PWM 0.8V VCC + - +10% + - BCAP- + - 0.6V VBG LOW SIDE DRIVE 200mV + - SHOOT THRU CONTROL LDOS1 FAULT LOW SIDE OFF + - PWRGD 2uA -10% DL 10uA 5VSTBY VBG CHARGE PUMP 5VSTBY + - GATE2 VBG + - DH VBG R S Q LDOS2 1.2V VCC OVER CURRENT Bandgap VCC + - GATE1 OSCILLATOR 5VSTBY HIGH SIDE DRIVE ERROR AMP HICCUP LATCH SS/EN UVLO SS/EN Marking Information yyww = Datecode (Example: 9912) xxxxx = Semtech Lot # (Example: 90101) SC1109ACS yyww xxxxx SC1109A SC1109BS yyww xxxxx SC1109B SC1109CS yyww xxxxx SC1109C R S Q STBY VOSENSE GND OSCILLATOR 5VSTBY + - PHASE BCAP+ BST SET DOMINATES PWM 0.8V VCC + - BCAP- + - 0.6V VBG LOW SIDE DRIVE 160uA + - SHOOT THRU CONTROL LDOS1 FAULT LOW SIDE OFF + - 2uA DL 10uA 5VSTBY VBG CHARGE PUMP 5VSTBY + - GATE2 VBG + - DH VBG R S Q LDOS2 1.2V VCC OVER CURRENT Bandgap VCC + - GATE1 OSCILLATOR 5VSTBY HIGH SIDE DRIVE ERROR AMP HICCUP LATCH SS/EN UVLO SS/EN OCSET SC1109A/B SC1109C |
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