次级控制恒压恒流AP4320规格书

AP4320Documentnumber:DS36786Rev.2-21of11©DiodesIncorporatedAP4320AProductLineofDiodesIncorporatedCONSTANTVOLTAGEANDCONSTANTCURRENTCONTROLLERDescriptionTheAP4320isahighlyintegratedsolutionforaconstantvoltage/constantcurrentmodeSMPSapplication.TheAP4320containsone2.5Vvoltagereferenceandtwooperationalamplifiers.The2.5Vvoltagereference,combinedwithoneoperationalamplifier,makesofanidealvoltagecontrollerforuseinadaptersandbatterychargers.Thelowvoltagereference,combinedwithanotheroperationalamplifier,makesofanidealcurrentlimiterforoutputlowsidecurrentsensing.TheAP4320isavailableinSOT26package.FeaturesConstantVoltageandConstantCurrentControlLowExternalComponentCountEasyCompensationLowSupplyCurrent:190APrecisionInternalVoltageReference:2.5VOperatingSupplyVoltage:3.5Vto36VLowCurrentSenseThreshold:30mV/50mVTotallyLead-free&FullyRoHSCompliant(Note1&2)HalogenandAntimonyFree.“Green”Device(Note3)PinAssignments(TopView)12345Pin1Mark6VSENSEGNDVCTRLICTRLVOUTVCCSOT26(K6Package)ApplicationsAC/DCAdaptersBatteryChargersLEDDriversNotes:1.Nopurposelyaddedlead.FullyEUDirective2002/95/EC(RoHS)&2011/65/EU(RoHS2)compliant.2.See’sdefinitionsofHalogen-andAntimony-free,GreenandLead-free.3.Halogen-andAntimony-freeGreen”productsaredefinedasthosewhichcontain900ppmbromine,900ppmchlorine(1500ppmtotalBr+Cl)and1000ppmantimonycompounds.TypicalApplicationsCircuitVCCVOUTGNDVSENSEICTRLRSSR4ToprimaryR2R1VOUT+VOUT-LoadC1R3C3R5R6VCTRLAP4320++IL2.5VC2(Optional)OP1OP2123456TypicalApplication1121RRRVVREFOUTSSSENSERVitCurrentLimAP4320Documentnumber:DS36786Rev.2-22of11©DiodesIncorporatedAP4320AProductLineofDiodesIncorporatedTypicalApplicationsCircuit(Cont.)TypicalApplication2TypicalApplication3VCCVOUTGNDVSENSEICTRLRSSR4ToprimaryR2R1VOUT+VOUT-LoadC1R3C3R5R6VCTRLAP4320++IL2.5VC2(Optional)OP1OP2123456)(121)]([SSLSSLREFUTORIRRRRIVVSSSENSERVitCurrentLimVCCVOUTGNDVSENSEICTRLRSSR4ToprimaryR2R1VOUT+VOUT-LoadC1R3C3R5R6VCTRLAP4320++IL2.5VC2(Optional)OP2OP1123456)(121SSLREFOUTRIRRRVVSSREFSENSEREFSENSERVVVVitCurrentLimAP4320Documentnumber:DS36786Rev.2-23of11©DiodesIncorporatedAP4320AProductLineofDiodesIncorporatedPinDescriptionsPinNumberPinNameFunction1VSENSEInputpinofthecurrentcontrolloop2GNDGround3VCTRLInputpinofthevoltagecontrolloop4ICTRLInputpinofthecurrentcontrolloop5VOUTOutputpin.Sinkingcurrentonly6VCCPowerSupplyFunctionalBlockDiagram41236VCCVOUTVCTRL5GNDVSENSEICTRL2.5VOP1OP2AP4320Documentnumber:DS36786Rev.2-24of11©DiodesIncorporatedAP4320AProductLineofDiodesIncorporatedAbsoluteMaximumRatings(Note4)SymbolParameterRatingUnitVCCPowerSupplyVoltage-0.3to38VVOUTInputVoltage(VOUTPin)-0.3toVCCVVICTRLInputVoltage(ICTRLPin)-0.3to18VVSENSEInputVoltage(VSENSEPin)-0.3to18VVVCTRLInputVoltage(VCTRLPin)-0.3to18VTJJunctionTemperature+150CTSTGStorageTemperature-55to+150CTLEADLeadTemperature(Soldering,5sec)+260CθJAThermalResistance(JunctiontoAmbient)250C/WNote4:Stressesgreaterthanthoselistedunder“AbsoluteMaximumRatings”maycausepermanentdamagetothedevice.Thesearestressratingsonly,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunder“RecommendedOperatingConditions”isnotimplied.Exposureto“AbsoluteMaximumRatings”forextendedperiodsmayaffectdevicereliability.RecommendedOperatingConditionsSymbolParameterMinMaxUnitVCCPowerSupplyVoltage3.536VAP4320Documentnumber:DS36786Rev.2-25of11©DiodesIncorporatedAP4320AProductLineofDiodesIncorporatedElectricalCharacteristics(@VCC=20V,-25CTA+125C,unlessotherwisespecified.)SymbolParametersConditionsMinTypMaxUnitTOTALCURRENTCONSUMPTIONICCTotalSupplyCurrentNotIncludingtheOutputSinkingCurrentVICTRL=VSENSE=0V,VOUT=Open–190–μAVOLTAGECONTROLLOOPGmvTransconductionGain(VCTRL).SinkCurrentOnly–13.5–mA/mVVREFVoltageControlLoopReferenceTA=+25oC2.4882.502.512V–2.48–2.52IIBVInputBiasCurrent(VCTRL)––25–nACURRENTCONTROLLOOPGmiTransconductionGain(ICTRL).SinkCurrentOnly–1.57–mA/mVVSENSECurrentControlLoopReferenceAP4320ATA=+25°C293031mV–283032AP4320BTA=+25°C48.55051.5–465054IIBICurrentOutofPinICTRLatVSENSEAP4320AVICTRL=-30mV–16–μAAP4320BVICTRL=-50mV–16–OUTPUTSTAGEVOLLowOutputVoltageat2mASinkingCurrent––30100mVIOSOutputShortCircuitCurrent.SinkCurrentOnlyVOUT=4V–30–mAAP4320Documentnumber:DS36786Rev.2-26of11©DiodesIncorporatedAP4320AProductLineofDiodesIncorporatedPerformanceCharacteristicsVREFvs.AmbientTemperatureICCvs.AmbientTemperatureVSENSEvs.AmbientTemperatureVSENSEvs.AmbientTemperatureIIBVvs.AmbientTemperatureIIBIvs.AmbientTemperature-40-200204060801001201402.4802.4852.4902.4952.5002.5052.5102.5152.520VREF(V)AmbientTemperature(oC)-40-20020406080100120140150160170180190200210220230240ICC(A)AmbientTemperature(oC)-40-2002040608010012014029.029.229.429.629.830.030.230.430.630.831.0VSENSE(mV)AmbientTemperature(oC)AP4320A-40-2002040608010012014048.048.549.049.