TD3501

August2004Revision11/110.75Asource/1.2AsinkmingatedriveActiveMillerclampfeatureTwostepsturn-offwithadjustablelevelanddelayDesaturationdetectionFaultstatusoutputNegativegatedriveabilityInputcompatiblewithpulsetransformeroroptocouplerSeparatesinkandsourceoutputsforeasygatedriveUVLOprotection2kVESDprotectionDescriptionTD350isanadvancedgatedriverforIGBTandpowerMOSFET.Controlandprotectionfunctionsareincludedandallowthedesignofhighreliabilitysystems.InnovativeactiveMillerclampfunctionavoidstheneedofnegativegatedriveinmostapplicationsandallowstheuseofasimplebootstrapsupplyforthehighsidedriverTD350includesatwo-levelturn-offfeaturewithadjustablelevelanddelay.Thisfunctionprotectsagainstexcessiveovervoltageatturn-offincaseofovercurrentorshort-circuitcondition.Samedelayisappliedatturn-ontopreventpulsewidthdistortion.TD350alsoincludesanIGBTdesaturationprotectionandaFAULTstatusoutput.TD350iscompatiblewithbothpulsetransformerandoptocouplersignals.Applications1200V3-PhaseInverterMotorControlUPSSystemsPinConnections(topview)OrderCodesDSO-14(PlasticMicroPackage)COFFINLVOFFOUTHVHDESATTD350NCNCFAULTCLAMPOUTLGNDVREFVL5126437101413911128PartNumberTemperatureRangePackagePackagingTD350ID-40,+125°CSOTubeTD350IDTTape&ReelTD350AdvancedIGBT/MOSFETDriverTD350BlockDiagram2/111BlockDiagramFigure1:SchematicblockdiagramTable1:PindescriptionNamePinNumberTypeFunctionIN1AnaloginputInputVREF2Analogoutput+5VreferencevoltageFAULT3DigitaloutputFaultstatusoutputNC4NotconnectedCOFF5TimingcapacitorTurnoffdelayNC6NotconnectedLVOFF7AnaloginputTurnofflevelGND8PowersupplySignalgroundCLAMP9AnalogoutputMillerclampVL10PowersupplyNegativesupplyOUTL11AnalogoutputGatedriveoutput(sink)OUTH12AnalogoutputGatedriveoutput(source)VH13PowersupplyPositivesupplyDESAT14AnaloginputDesaturationprotectionOUTHINVrefOUTLVHDESATTD350ControlBlockFAULTNCCOFFCLAMPGND16VDesatPulseTransformerdelayOffVREFVL-10VOptionnalVrefVrefLVOFFVHOffLevelUVLOVrefNCVHAbsoluteMaximumRatingsTD3503/112AbsoluteMaximumRatingsTable2:KeyparametersandtheirabsolutemaximumratingsSymbolParameterValueUnitVHLMaximumSupplyVoltage(VH-VL)28VVHMaximumVHvoltagevs.GND28VVLMinimumVLvoltagevs.GND-12VVoutVoltageonOUTH,OUTL,CLAMPpinsVL-0.3toVH+0.3VVdesVoltageonDESAT,FAULT,LVOFFpin-0.3toVH+0.3VVterVoltageonotherpins(IN,COFF,VREF)-0.3to7VPdPowerdissipation500mWTstgStoragetemperature-55to150°CTjMaximumJunctionTemperature150°CRhjaThermalResistanceJunction-Ambient125°C/WRhjcThermalResistanceJunction-Case22°C/WESDElectrostaticdischarge2kVTable3:OperatingconditionsSymbolParameterValueUnitVHPositiveSupplyVoltagevs.GNDUVLOto26VVLNegativeSupplyVoltagevs.GND0to-10VVH-VLMaximumTotalSupplyVoltage26VToperOperatingFreeAirTemperatureRange-40to125°CTD350ElectricalCharacteristics4/113ElectricalCharacteristicsTable4:Tamb=-20to125°C,VH=16V,VL=-10V(unlessotherwisespecified)SymbolParameterTestConditionMinTypMaxUnitInputVtonINturn-onthresholdvoltage0.81.0VVtoffINturn-offthresholdvoltage4.04.2VtonminMinimumpulsewidth100135220nsIinpINInputcurrent1µAVoltagereference-note11)RecommendedcapacitorrangeonVREFpinis10nFto100nF.VrefVoltagereferenceT=25°CTminTTmax4.854.775.005.155.22VVIrefMaximumoutputcurrent10mADesaturationprotectionVdesDesaturationthreshold6.57.27.9VIdesSourcecurrent250µAFaultoutputtfaultDelayforfaultdetection500nsVFLFAULTlowvoltageIfsink=10mA1VClampVtclampCLAMPpinvoltagethreshold2.0VVCLClamplowvoltageatIcsink=500mAT=25°CTminTTmaxVL+2.5VL+3.0VVOffDelayVtdelVoltagethreshold2.352.502.65VRdelDischargeresistorI=1mA500ΩOffLevelsIblvoffLVOFFpeakinputcurrent(sink)LVOFF=12V120200µAViolvOffsetvoltageLVOFF=12V-0.3-0.150VOutputsVOL1OutputlowvoltageatIosink=20mAVL+0.35VVOL2OutputlowvoltageatIosink=200mAT=25°CTminTTmaxVL+1.0VL+1.5VVVOL3OutputlowvoltageatIosink=500mAT=25°CTminTTmaxVL+2.5VL+3.0VVVOH1Outputhighvoltage1Iosource=20mAVH-2.5VVOH2Outputhighvoltage2Iosource=200mAVH-3.0VVOH3Outputhighvoltage3Iosource=500mAVH-4.0VtrRisetimeCL=1nF,10%to90%VL=0VL=-10V130175nsnstfFalltime(2stepturn-offdisabled)CL=1nF,90%to10%VL=0VL=-10V7590nsnstpdInputtooutputpropagationdelayatturn-on(2stepdelaydisabled)10%outputchange270800ns∆twInputtooutputpulsedistortion10%outputchange1060110nsUnderVoltageLockout(UVLO)UVLOHUVLOtopthreshold101112VUVLOLUVLObottomthreshold91011VVhystUVLOhysteresisUVH-UVL0.51VSupplycurrentIinQuiescentcurrentoutput=0V,noload5mAFunctionalDescriptionTD3505/114FunctionalDescription4.1InputTheinputiscompatiblewithoptocouplersorpulsetransformers.Theinputistriggeredbythesignaledgeandallowstheuseoflow-sized,low-costpulsetransformer.Inputisactivelow(outputishighwheninputislow)toeasetheuseofoptocoupler.Whendrivenbyapulsetransformer,theinputpulse(positiveandnegative)widthmustbelargerthantheminimumpulewidthtonmin.4.2VoltagereferenceAvoltagereferenceisusedtocreateaccuratetimingforthetwo-levelturn-offwithexternalresistorandcapacitor.4.3DesaturationprotectionDesaturationprotectionensurestheprotectionoftheIGBTintheeventofovercurrent.WhentheDESATvoltagegoeshigherthat7V,theoutputisdrivenlow(with2-levelturn-offifapplicable).TheFAULToutputisa