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DescriptionIRFZ44NisaN-channelPowerMOSFETs,thisblogcoversIRFZ44NMOSFETpinout,datasheet,equivalent,featuresandotherinformationonhowtouseandwheretousethisdevice.CatalogDescriptionIRFZ44NCADModelIRFZ44NPinoutIRFZ44NCircuitIRFZ44NApplicationsIRFZ44NFeaturesIRFZ44NAdvantageIRFZ44NPackageIRFZ44NParametersIRFZ44NDocumentsIRFZ44NProductComplianceIRFZ44NAlternativesIRFZ44NEquivalentsWheretouseIRFZ44NIRLZ44NandIRFZ44NDifferenceHowtouseIRFZ44NHowtoSafelyLongRunIRFZ44NinCircuitsIRFZ44NManufacturerComponentDatasheetFAQOrdering&QuantityIRFZ44NCADModelIRFZ44NSymbolIRFZ44NFootprintIRFZ44NPinoutPinNumberPinNameDescription1SourceCurrentflowsoutthroughSource2GateControlsthebiasingoftheMOSFET3DrainCurrentflowsinthroughDrainIRFZ44NCircuitSwitchingTimeTestCircuitUnclampedInductiveTestCircuitGateChargeTestCircuitPeakDiodeRecoverydv/dtTestCircuitIRFZ44NApplicationsBatteryChargersBatteryManagementSystemsSolarBatteryChargersApplicationsFastSwitchingApplicationsUninterruptiblePowerSuppliesMotorDriverCircuitsSolarUninterruptiblePowerSuppliesIRFZ44NFeaturesAdvancedProcessTechnologyUltraLowOn-ResistanceDynamicdv/dtRating175COperatingTemperatureFastSwitchingFullyAvalancheRatedLead-FreeIRFZ44NAdvantageIRFZ44NisawidelyusedMOSFETtransistordesignedtouseinvarietyofgeneralpurposeapplications.Thetransistorpossesseshighspeedswitchingcapabilitywhichmakesitidealtouseinapplicationswherehighspeedswitchingisacrucialrequirement.Thetransistoriscapabletodriveloadofupto49Aandthemaxloadvoltagecanbe55V.Howeverthepeakpulsecurrentcanbeupto160A.Theminimumthresholdvoltagerequiredforthistransistortomakeitinfullyopenstateis2Vto4V.Thistransistorcanalsobeusedasanaudioamplifierorinaudioamplifierstages;itiscapabletodelivermaximumaudiooutputof94W.IRFZ44NPackageTo-220ABPackageOutlineIRFZ44NParametersBrandInfineon/IRChannelModeEnhancementConfigurationSingleFallTime45nsForwardTransconductance-Min19SHeight15.65mmId-ContinuousDrainCurrent49ALength10mmManufacturerInfineonMaximumOperatingTemperature+175CMinimumOperatingTemperature-55CMountingStyleThroughHoleNumberofChannels1ChannelPackage/CaseTO-220-3Pd-PowerDissipation94WProductCategoryMOSFETProductTypeMOSFETRdsOn-Drain-SourceResistance17.5mOhmsRiseTime60nsSubcategoryMOSFETsTechnologySiTransistorPolarityN-ChannelTransistorType1N-ChannelTypeHEXFETPowerMOSFETTypicalTurn-OffDelayTime44nsTypicalTurn-OnDelayTime12nsUnitWeight0.211644ozVds-Drain-SourceBreakdownVoltage55VVgs-Gate-SourceVoltage-20V,+20VWidth4.4mmIRFZ44NDocumentsEOLEndofLifeNotification(PDF)ModelsIRFZ44NSymbolFootprintbySnapEDAProductCatalogsGateDriverSelectionGuide2019(PDF)SelectionGuide(PDF)IRFZ44NProductComplianceUSHTS8541290095TARIC8541100000ECCNEAR99IRFZ44NAlternativesIRF2807,IRFB3207,IRFB4710IRFZ44NEquivalentsIRFZ46N,STP55N06,2SK2376,BUK456-60H,STP50N06,2SK2312,2SK2376,BUZ102S,IRF1010AIRLZ44NandIRFZ44NDifferenceTheIRLZ44NandIRFZ44NMOSFETsareoftenconfusedamongeachotherandusedincorrectly.TheIRLZ44NisaLogiclevelMosfetwithaverylowgatethresholdvoltageof5V,meaningtheMOSFETcanbefullyturnedonwithjust5Vonitsgatepinwhichavoidstheneedforadrivercircuit.IRLZ44NTheIRFZ44NontheotherhandrequiresagatedrivercircuitiftheMOSFEThastobeturnedoncompletelyusingamicrocontrollerlikeArduino.Howeveritdoesturnonpartiallywithdirect5VformaI/Opin,buttheoutputdraincurrentwillbelimited.IRFZ44NWheretouseIRFZ44NTheIRFZ44Nisknownforitshighdraincurrentandfastswitchingspeed.AddingtothatitalsohasalowRdsvaluewhichwillhelpinincreasingtheefficiencyofswitchingcircuits.TheMOSFETwillstartturningonwithasmallgatevoltageof4V,butthedraincurrentwillbemaximumonlywhenagatevoltageof10Visapplied.IfthemosfethastobedrivendirectlyfromamicrocontrollerlikeArduinothentrythelogiclevelversionIRLZ44Nmosfet.HowtouseIRFZ44NUnliketransistorsMOSFETsarevoltagecontrolleddevices.Meaning,theycanbeturnedonorturnedoffbysupplyingtherequiredGatethresholdvoltage(VGS).IRFZ44NisanN-channelMOSFET,sotheDrainandSourcepinswillbeleftopenwhenthereisnovoltageappliedtothegatepin.Whenagatevoltageisappliedthesepinsgetsclosed.IfitisrequiredtobeswitchedwithArduino,thenasimpledrivecircuitusingatransistorwillworktoprovidetherequiredgatevoltagetotriggertheMOSFETtoopenfully.Forotherswitchingandamplifyingapplications,adedicatedMOFETDriverICisrequired.HowtoSafelyLongRunIRFZ44NinCircuitsTogetlongtermperformancewithIRFZ44Nitissuggestedtonotusethistransistoronitsmaximumratings.Usinganycomponentsonitsmaximumratingcancausestressonthecomponentandmaydamageorweakitsinsidecircuitrywhichresultinweakerperformance.Wealwayssuggestuseanycomponentatleat20%belowfrommaximumcapacityorspecifications.ThesamerulewillbeappliedforIRFZ44N.Themaximumdraincurrentis49amperesthereforedonotdriveloadofmorethan39amperes.Themaximumloadvoltageis55Vandforsafetydonotdriveloadofmorethan44V.TheGatetosourcevoltageshouldbeunder20Vandalwaysstoreoroperatethetransistorintemperatureabove-55centigradeandbelow+175centigrade.IRFZ44NManufacturerInfineonTechnologiesAGisaworldleaderinsemiconductorsolutionsthatmakelifeeasier,saferandgreener.MicroelectronicsfromInfineonisthekeytoabetterfuture.Inthe2019fiscalyear(ending30September),thecompanyreportedsalesofaround8billionwithabout41,400employeesworldwide.InfineonislistedontheFrankfurtStockExchange(tickersymbol:IFX)andintheUSAontheover-the-countermarketOTCQXInternationalPremier(tickersymbol:IFNNY).ComponentDatasheetIRFZ44NDatasheetFAQWhatisirfz44n?TheIRFZ44NisaN-channelMOSFETwithahighdraincurrentof49AandlowRdsvalueof17.5m.Italsohasalowthresholdvoltageof4VatwhichtheMOSFETwillstartconducting.Henceitiscommonlyusedwithmicrocontrollerstodrivewith5V.WhatarepowerMOSFETsusedfor?PowerMOSFETsarewidelyusedintransportationtechnology,whichincludeawiderangeofvehicles.Intheautomotiveindustry,powerMOSFETsarewidelyusedinautomotiveelectronics.PowerMOSFETs(includingDMOS,LDMOSandVMOS)arecommonlyusedforawiderangeofotherapplications.HowdoIuseirfz44n?IRFZ44NisanN-channelMOSFET,sotheDrainandSourcepinswillbeleftopenwhenthereisnovoltageappliedtothegatepin.Whenagatevoltageisappliedthesepinsgetsclosed.HowdoIturnonamosfetchannel?N-ChannelForanN-ChannelMOSFET,thesourceisconnectedtoground.ToturntheMOSFETon,weneedtoraisethevoltageonthegate.Toturnitoffweneedtoconnectthegatetoground.P-ChannelThesourceisconnectedtothepowerrail(Vcc).Whattodowithirfz44n?

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