UCC2813D-1中文资料

UCC2813-0/-1/-2/-3/-4/-5UCC3813-0/-1/-2/-3/-4/-504/99FEATURES100mATypicalStartingSupplyCurrent500mATypicalOperatingSupplyCurrentOperationto1MHzInternalSoftStartInternalFaultSoftStartInternalLeading-EdgeBlankingoftheCurrentSenseSignal1AmpTotem-PoleOutput70nsTypicalResponsefromCurrent-SensetoGateDriveOutput1.5%ToleranceVoltageReferenceSamePinoutasUCC3802,UC3842,andUC3842ADESCRIPTIONTheUCC3813-0/-1/-2/-3/-4/-5familyofhigh-speed,low-powerinte-gratedcircuitscontainallofthecontrolanddrivecomponentsrequiredforoff-lineandDC-to-DCfixedfrequencycurrent-modeswitchingpowersupplieswithminimalpartscount.ThesedeviceshavethesamepinconfigurationastheUC3842/3/4/5family,andalsooffertheaddedfeaturesofinternalfull-cyclesoftstartandinternalleading-edgeblankingofthecurrent-senseinput.TheUCC3813-0/-1/-2/-3/-4/-5familyoffersavarietyofpackageoptions,temperaturerangeoptions,choiceofmaximumdutycycle,andchoiceofcriticalvoltagelevels.LowerreferencepartssuchastheUCC3813-3andUCC3813-5fitbestintobatteryoperatedsystems,whilethehigherreferenceandthehigherUVLOhysteresisoftheUCC3813-2andUCC3813-4maketheseidealchoicesforuseinoff-linepowersupplies.TheUCC2813-xseriesisspecifiedforoperationfrom–40°Cto+85°CandtheUCC3813-xseriesisspecifiedforoperationfrom0°Cto+70°C.BLOCKDIAGRAMLowPowerEconomyBiCMOSCurrentModePWMUDG-96134PartNumberMaximumDutyCycleReferenceVoltageTurn-OnThresholdTurn-OffThresholdUCCx813-0100%5V7.2V6.9VUCCx813-150%5V9.4V7.4VUCCx813-2100%5V12.5V8.3VUCCx813-3100%4V4.1V3.6VUCCx813-450%5V12.5V8.3VUCCx813-550%4V4.1V3.6VORDERINGINFORMATION2UCC2813-0/-1/-2/-3/-4/-5UCC3813-0/-1/-2/-3/-4/-5DIL-8orSOIC-8(TOPVIEW)NorDPACKAGEOUTVCCREFGNDFBCOMPCSRC12348765CONNECTIONDIAGRAMSVCCVoltage(Note2)...........................12.0VVCCCurrent.................................30.0mAOUTCurrent..................................1.0AOUTEnergy(CapacitiveLoad)...................20.0mJAnalogInputs(FB,CS)....................–0.3Vto6.3VPowerDissipationatTA+25°C(NPackage).........1.0WPowerDissipationatTA+25°C(DPackage)........0.65WStorageTemperature...................–65Cto+150°CJunctionTemperature...................–55Cto+150°CLeadTemperature(Soldering,10Seconds).........+300°CABSOLUTEMAXIMUMRATINGS(Note1)Note1:AllvoltagesarewithrespecttoGND.Allcurrentsarepositiveintothespecifiedterminal.ConsultUnitrodeIntegratedCircuitsdatabookforinformationregardingthermalspecifica-tionsandlimitationsofpackages.Note2:InnormaloperationVCCispoweredthroughacurrentlimitingresistor.Absolutemaximumof12VapplieswhenVCCisdrivenfromalowimpedancesourcesuchthatICCdoesnotexceed30mA.COMPFBCSRCREFVCCOUTGND87651234TSSOP-8(TOPVIEW)PWPACKAGEUCCPACKAGE813TEMPERATURERANGE–PRODUCTOPTIONORDERINGINFORMATIONTEMPERATURERANGEPACKAGESUCC2813–40°CTO+85°CN,D,PWUCC38130°CTO+70°CN,D,PWELECTRICALCHARACTERISTICSUnlessotherwisestated,thesespecificationsapplyfor–40°C£TA£+85°CforUCC2813-x;0°C£TA£+70°CforUCC3813-x;VCC=10V(Note3);RT=100kfromREFtoRC;CT=330pFfromRCtoGND;0.1mFcapacitorfromVCCtoGND;0.1mFcapacitorfromVREFtoGND.TA=TJ.PARAMETERTESTCONDITIONSUCC2813-xUCC3813-xUNITSMINTYPMAXReferenceSectionOutputVoltageTJ=+25°C,I=0.2mA,UCCx813-0/-1/-2/-44.9255.005.075VTJ=+25°C,I=0.2mA,UCCx813-53.944.004.06VLoadRegulation0.2mAI5mA1030mVTotalVariationUCCx813-0-1/-2/-4(Note7)4.845.005.10VUCCx813-5(Note7)3.844.004.08VOutputNoiseVoltage10Hz£f£10kHz,TJ=+25°C(Note9)70mVLongTermStabilityTA=+125C,1000Hours(Note9)5mVOutputShortCircuit–5–35mAOscillatorSectionOscillatorFrequencyUCCx813-0/-1/-2/-4(Note4)404652kHzUCCx813-5(Note4)263136kHzTemperatureStability(Note9)2.5%AmplitudePeak-to-Peak2.252.402.55VOscillatorPeakVoltage2.45V3UCC2813-0/-1/-2/-3/-4/-5UCC3813-0/-1/-2/-3/-4/-5ELECTRICALCHARACTERISTICSUnlessotherwisestated,thesespecificationsapplyfor–40°C£TA£+85°CforUCC2813-x;0°C£TA£+70°CforUCC3813-x;VCC=10V(Note3);RT=100kfromREFtoRC;CT=330pFfromRCtoGND;0.1mFcapacitorfromVCCtoGND;0.1mFcapacitorfromVREFtoGND.TA=TJ.PARAMETERTESTCONDITIONSUCC2813-xUCC3813-xUNITSMINTYPMAXErrorAmplifierSectionInputVoltageCOMP=2.5V;UCCx813-0/-1/-2/-42.422.502.56VCOMP=2.0V;UCCx813-3/-51.922.02.05VInputBiasCurrent–22mAOpenLoopVoltageGain6080dBCOMPSinkCurrentFB=2.7V,COMP=1.1V0.42.5mACOMPSourceCurrentFB=1.8V,COMP=REF–1.2V–0.2–0.5–0.8mAGainBandwidthProduct(Note9)2MHzPWMSectionMaximumDutyCycleUCCx813-0/-2/-39799100%UCCx813-1/-4/-5484950MinimumDutyCycleCOMP=0V0%CurrentSenseSectionGain(Note5)1.101.651.80V/VMaximumInputSignalCOMP=5V(Note6)0.91.01.1VInputBiasCurrent–200200nACSBlankTime50100150nsOver-CurrentThreshold1.321.551.70VCOMPtoCSOffsetCS=0V0.450.901.35VOutputSectionOUTLowLevelI=20mA,allparts0.10.4VI=200mA,allparts0.350.90VI=50mA,VCC=5V,UCCx813-3/-50.150.40VI=20mA,VCC=0V,allparts0.71.2VOUTHighVSAT(VCC-OUT)I=–20mA,allparts0.150.40VI=–200mA,allparts1.01.9VI=–50mA,VCC=5V,UCCx813-3/-50.40.9VRiseTimeCL=1nF4170nsFallTimeCL=1nF4475nsUndervoltageLockoutSectionStartThreshold(Note8)UCCx813-06.67.27.8VUCCx813-18.69.410.2VUCCx813-2/-411.512.513.5VUCCx813-3/-53.74.14.5VStopThreshold(Note8)UCC1813-06.36.97.5VUCC1813-16.87.48.0VUCCx813-2/-47.68.39.0VUCCx813-3/-53.23.64.0VStarttoStopH