电源管理芯片FA5304.pdf

《电源管理芯片FA5304.pdf》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、BipolarICFA5304AP(S)/FA5305AP(S)ForSwitchingPowerSupplyControlFA5304AP(S)/FA5305AP(S)■Description■Dimensions,mmTheFA5304AP(S)andFA5305AP(S)arebipolarICsforswitchingpowersupplycontrolandcandirectlydriveapowerÁSOP-8MOSFET.TheseICscontainmanyfunctionsinasmall8-pin85package.WiththeseICs,ah

2、igh-performancepowersupplycanbecreatedcompactlybecausenotmanyexternal0.3±componentsareneeded.5.38.2■Features14•DrivecircuitforconnectingapowerMOS-FET(IO=±1.5A)6.05•Wideoperatingfrequencyrange(5to600kHz)+0.1•Pulse-by-pulseovercurrentlimitingfunction–0.05Positivevoltagedetection:FA5304AP

3、(S)0.20Negativevoltagedetection:FA5305AP(S)2.0max•Overloadcutofffunction(Latchornon-protectionmode°0.60.4±0.11.27±0.2selectable)0~10•OutputON/OFFcontrolfunctionbyexternalsignals•OvervoltagecutofffunctioninlatchmodeÁDIP-8•Undervoltagemalfunctionpreventionfunction(ONat16V85andOFFat8.7V)•

4、Erroramplifierforcontrolbytertiarywindingdetection•Lowstandbycurrent(90mAtyp.)6.5•8-pinpackage(DIP/SOP)■Applications149.3•Switchingpowersupplyforgeneralequipment1.53.44.5max+0.10.3–0.053.0min7.62.54±0.25±0.10~15˚0.50~15˚1FA5304AP(S)/FA5305AP(S)■BlockdiagramÁFA5304AP(S)PinPinDescription

5、No.symbol1IN(–)Invertinginputtoerroramplifier2FBErroramplifieroutput3IS(+)Overcurrent(+)detection4GNDGround5OUTOutput6VCCPowersupply7CTOscillatortimingcapacitor8CSSoft-startandON/OFFcontrolÁFA5305AP(S)PinPinDescriptionNo.symbol1IN(–)Invertinginputtoerroramplifier2FBErroramplifieroutput

6、3IS(–)Overcurrent(–)detection4GNDGround5OUTOutput6VCCPowersupply7CTOscillatortimingcapacitor8CSSoft-startandON/OFFcontrol2www.ic2pdf.comFA5304AP(S)/FA5305AP(S)■Absolutemaximumratings■RecommendedoperatingconditionsCommontoFA5304AP(S)andFA5305AP(S)CommontoFA5304AP(S)andFA5305AP(S)ItemSym

7、bolRatingUnitItemSymbolMin.Max.UnitSupplyvoltageVCC30VSupplyvoltageVCC1030VOutputcurrentIO±1.5AErroramplifierfeedbackresistorRNF100kWErroramplifierinputVIN4VSoft-startcapacitorCS0.11mFvoltageOscillationfrequencyfOSC5600kHzFeedbackterminalinputvoltageVFB4VOvercurrentdetectionVIS–0.3to