Tkool Electronics

It can drive load up to 50V with 50 miliampere

VS-45L60-VISHAY

It can drive load up to 50V with 50 miliampere

due to which it can be used to drive loads upto 1.5AMax Collector-Emitter Voltage (VCE): –80VMax Collector-Base Voltage (VCB): –80VMax Emitter-Base Voltage (VEBO): –5VMax Collector Dissipation (Pc): 12.

VS-45L60-VISHAY

features applications and other useful information about how and where to use it.this transistor can handle current upto 1.The maximum load this transistor can drive is 1.

VS-45L60-VISHAY

Moreover it is also used in industrial electronics.arduino projects and other microcontroller projects.

VS-45L60-VISHAY

Do not operate or store it in temperature below -55 centigrade and above +150 centigrade.

make it an ideal transistor to use in  circuits using 80 volts DC or below 80 volts.TheL7812CVisathree-terminalpositivevoltageregulator.Thisregulatorcanprovidelocalon-cardregulation,eliminatingthedistributionproblemsassociatedwithsinglepointregulation.ThisblogwillcoverdetailedinformationaboutL7812CVincludingpinout,features,applications,circuits,CADmodelsandsoon.CatalogL7812CVPinoutConfigurationL7812CVPackageL7812CVCADModelsL7812CVFeaturesL7812CVElectricalChracteristicsL7812CVSchematicDiagramL7812CVApplicationsL7812CVTypicalApplicationL7812CVFunctionalEquivalentsL7812CVDesignConsiderationL7812CVPopularitybyRegionL7812CVMarketPriceAnalysisL7812CVManufacturerComponentDatasheetFAQOrderingQuantityL7812CVPinoutConfigurationL7812CVPackageL7812CVCADModelsPartSymbolFootprint3DModelL7812CVFeaturesOutputcurrentupto1.5AOutputvoltagesof5;6;8;8.5;9;12;15;18;24VThermaloverloadprotectionShortcircuitprotectionOutputtransitionSOAprotection2%outputvoltagetolerance(Aversion)Guaranteedinextendedtemperaturerange(Aversion)L7812CVElectricalCharacteristicsL7812CVSchematicDiagramL7812CVApplicationsConstant+12VoutputregulatortopowermicrocontrollersandsensorsinmostoftheprojectsAdjustableOutputRegulatorCurrentLimiterforcertainapplicationsRegulatedDualSupplyOutputPolarity-Reversal-ProtectionCircuitL7812CVTypicalApplicationL7812CVFunctionalEquivalentsPartNumberDescriptionManufacturerAN7812POWERCIRCUITSFixedPositiveStandardRegulator,12VBIPolar,PSFM3,TO-220AB,3PINPanasonicElectronicComponentsML7812FAPOWERCIRCUITSFixedPositiveStandardRegulator,12VBIPolar,PSFM3,TO-220F,3PINMicroElectronicsCorporationIP140AIG-15POWERCIRCUITS15VFIXEDPOSITIVEREGULATOR,SFM3,TO-257,3PINTTElectronicsPowerandHybrid/SemelabLimitedSG7815AIGPOWERCIRCUITSFixedPositiveStandardRegulator,15VBIPolar,CSFM3,HERMETICSEALED,TO-257,3PINLinfinityMicroelectronicsSG7812IGPOWERCIRCUITSFixedPositiveStandardRegulator,12VBIPolar,HERMETICSEALED,TO-257,3PINMicrosemiCorporationMC7815AECTBUPOWERCIRCUITS15VFIXEDPOSITIVEREGULATOR,PSFM3,ROHSCOMPLIANT,TO-220,3PINRochesterElectronicsLLCKA7812AEPOWERCIRCUITSFixedPositiveStandardRegulator,12VBIPolar,TO-220,3PINFairchildSemiconductorCorporationKA7812ATUPOWERCIRCUITSFixedPositiveStandardRegulator,12VBIPolar,PSFM3,TO-220,3PINFairchildSemiconductorCorporationMC7812ACTGPOWERCIRCUITSLinearVoltageRegulator,1A,5to24V,PositiveVout:12.0V;TJ=0Cto+125C,TO-220,SINGLEGAUGE,3-LEAD,50-TUBEONSemiconductorMC7812CTGPOWERCIRCUITSLinearVoltageRegulator,1A,5to24V,PositiveVout:12.0V;TJ=0Cto+125C,TO-220,SINGLEGAUGE,3-LEAD,50-TUBEONSemiconductorL7812CVDesignConsiderationTheL78seriesoffixedvoltageregulatorsaredesignedwiththermaloverloadprotectionthatshutsdownthecircuitwhensubjectedtoanexcessivepoweroverloadcondition,internalshort-circuitprotectionthatlimitsthemaximumcurrentthecircuitwillpass,andoutputtransistorsafe-areacompensationthatreducestheoutputshortcircuitcurrentasthevoltageacrossthepasstransistorisincreased.Inmanylowcurrentapplications,compensationcapacitorsarenotrequired.However,itisrecommendedthattheregulatorinputbebypassedwithcapacitoriftheregulatorisconnectedtothepowersupplyfilterwithlonglengths,oriftheoutputloadcapacitanceislarge.Aninputbypasscapacitorshouldbeselectedtoprovidegoodhighfrequencycharacteristicstoinsurestableoperationunderallloadconditions.A0.33Forlargertantalum,mylarorothercapacitorhavinglowinternalimpedanceathighfrequenciesshouldbechosen.Thebypasscapacitorshouldbemountedwiththeshortestpossibleleadsdirectlyacrosstheregulatorsinputterminals.Normallygoodconstructiontechniquesshouldbeusedtominimizegroundloopsandleadresistancedropssincetheregulatorhasnoexternalsenselead.Theadditionofanoperationalamplifierallowsadjustmenttohigherorintermediatevalueswhileretainingregulationcharacteristics.Theminimumvoltageobtainedwiththearrangementis2Vgreaterthantheregulatorvoltage.Thecircuitofahighcurrentvoltageregulator(thefigureshownbelow)canbemodifiedtoprovidesupplyprotectionagainstshortcircuitbyaddingashortcircuitsenseresistor,RSC,andanadditionalPNPtransistor.ThecurrentsensingPNPmustbeabletohandletheshortcircuitcurrentofthethreeterminalregulator.Thereforeafourampereplasticpowertransistorisspecified.L7812CVPopularitybyRegionL7812CVMarketPriceAnalysisL7812CVManufacturerSTmicroelectronics(ST)groupwasestablishedinJune1988asaresultofthemergerofSGSMicroelectronicsofItalyandThomsonOfFrance.InMay1998SGS-ThomsonMicroelectronicschangeditsnametoSTmicroelectronicsLimited.Itistheworldslargestmanufacturerofdedicatedanalogchipsandpowerconversionchips,theworldslargestsupplierofindustrialsemiconductorsandset-topboxchips,andaworldleaderindiscretecomponents,mobilephonecameramodules,andautomotiveintegratedcircuits.ComponentDatasheetL7812CVDatasheetFAQWhatisl7812cv?TheL7812CVisathree-terminalpositivevoltageregulator.Thisregulatorcanprovidelocalon-cardregulation,eliminatingthedistributionproblemsassociatedwithsinglepointregulation.Canka7812andl7812cvbeusedincommon?KA7812isaFAIRCHILDproductwithamaximumoutputcurrentof1A,andL7812CVisaSTproductwithamaximumoutputcurrentof1.5A.Therefore,whentheoutputcurrentrequirementdoesnotexceed1A,thetwocanbeusedincommon.Iftheoutputcurrentisbetween1Aand1.5A,onlyL7812CVcanbeused.HowtowiretheL7812cvregulatorIC?IfitispackagedasTO-220,theidentificationmethodistofacethesidewiththewordstoyourself,andthepinsdownwards.Count123fromlefttoright.Pin1isinput,pin2isground,andpin3isoutput.78SeriesofvoltageregulatorchipsmustbeDCinput,iftheinputandoutputarereversed,thechipwillbeburnt.Inaddition,theinputDCvoltageshouldnotbetoohigh.WhatisthedifferencebetweenLM7812CVandLM7812CT?Whichoutputcurrentishigher?LM7812CVandLM7812CTareboth+12Vthree-terminalregulators,andthemaximumoutputcurrentis1A.Thedifferenceisthattheirmanufacturersaredifferent.Can7812cvand78m12bereplacedwitheachother?Themaximumoutputcurrentof7812isgenerally1A(afewmanufacturersis1.5A),whilethemaximumoutputcurrentof78M12is0.5A,so7812canreplace78M12,but78M12maynotbeabletoreplace7812(onlywhentheloadcurrentdoesnotexceed0.5A)Canreplaceeachotheronlyundercircumstances).Whatistheoutputvoltageoftheintegratedthree-terminalregulatorL7812?12V.Theoutputvoltageofthethree-terminalregulatorintegratedcircuitistheoutputvoltage.Forexample,7805outputs5V,7815outputs15V.Themaximumoutputcurrentof78seriesstabilizedintegratedcircuitsisgenerally1.5A.Whatistherangeofl7812inputcurrent?Thehighestinputvoltageof7812is35V.Themaximuminputcurrentis1A,butitsbestworkingvoltageis15V~17V,especiallywhentheloadcurrentislarge.Becausethisisalinearregulator,iftheinputandoutputvoltagedifferenceandoutputcurrentarebothlargeatthesametime,itwillcauseexcessivepowerconsumptionandsevereheatgeneration.

L7805CVisathreeterminallinearvoltageregulatorICwithafixedoutputvoltageof5Vwhichisusefulinawiderangeofapplications.TheyareavailableinseveralICPackageslikeTO-220,SOT-223,TO-263andTO-3.Outofthese,theTO-220Packageisthemostcommonlyusedone.Thisblogcoversthepinout,features,parameter,circuits,equivalentsandotherinformationaboutL7805CV.ThisisatutorialvideoonhowtouseL7805CVlinearvoltageregulator(11V-5V)CatalogL7805CVParametersL7805CVPinConfigurationL7805CVCADModelsInformationL7805CVFeaturesL7805CVElectricalChracteristicsL7805CVSchematicDiagramL7805CVBlockDiagramL7805CVApplicationCircuitL7805CVFunctionalEquivalentsL7805CVPopularitybyRegionL7805CVMarketPriceAnalysisL7805CVDesignConsiderationL7805CVManufacturerComponentDatasheetFAQOrderingQuantityL7805CVParametersFixedOutputVoltageNom.5VAdjustableOutputVoltageMin-AdjustableOutputVoltageMax-InputVoltageMin10VInputVoltageMax35VProductRange7805VoltageRegulatorsOutputCurrent1.5AOutputTypeFixedLinearRegulatorCaseStyleTO-220No.ofPins3PinsOperatingTemperatureMin0COperatingTemperatureMax125CAutomotiveQualificationStandard-MSLMSL1-UnlimitedL7805CVPinConfigurationL7805CVCADModelsInformationPartSymbolFootprint3DModelL7805CVFeaturesOutputcurrentinexcessof1.5AOutputvoltageof5VInternalthermaloverloadprotectionOutputtransitionSafe-AreacompensationThermaloverloadprotectionShortcircuitprotectionL7805CVElectricalCharacteristicsTj=25℃(Vi=10V,Io=0.5A,Ci=0.33F,Co=0.1Funlessotherwisespecified)SymbolParameterConditionsMinMaxUnitVoOutputVoltageVin=20V;Io=500mA4.85.2V△VvLineRegulation7.5VVin20V;Io=0.5A-50mV△ViLoadRegulation5.0mAIo1.5A;Vin=10V-100mVIqQuiescentCurrentVin=10V;Io=1.5A-6.0mA△q1QuiescentCurrentChange5.0mAIo1.0A;Vin=10V-0.5mA△q2QuiescentCurrentChange7VVin25V;Io=500mA-1.3mAL7805CVSchematicDiagramTheinternalcircuitofL7805three-terminalvoltageregulatorIChasthefunctionsofovervoltageprotection,overcurrentprotectionandoverheatprotection,whichmakesitsperformanceverystable.Therefore,itcanachievemorethan1Aoutputcurrent.Thedevicealsohasagoodtemperaturecoefficient,sotheproducthasawiderangeofapplications.Localregulationcanbeusedtoeliminatetheinfluenceofnoiseandsolvethedispersionproblemrelatedtosingle-pointregulation.Theoutputvoltageerroraccuracyis3%and5%.L7805CVBlockDiagramL7805CVApplicationCircuitL7805CVFunctionalEquivalentsPartNumberDescriptionManufacturerLM7805A-220MR1POWERCIRCUITS5VFIXEDPOSITIVEREGULATOR,PSFM3,METAL,TO-220,3PINTTElectronicsPowerandHybrid/SemelabLimitedLM7805A-220MPOWERCIRCUITSFixedPositiveStandardRegulator,5VPSFM3,METAL,TO-220,3PINTTElectronicsResistorsLM340T-5POWERCIRCUITSFixedPositiveStandardRegulator,5VBIPolar,PSFM3,PLASTIC,SFM-3MotorolaSemiconductorProductsUA7805CKCSPOWERCIRCUITS5VFIXEDPOSITIVEREGULATOR,PSFM3,ROHSCOMPLIANT,PLASTIC,TO-220,3PINRochesterElectronicsLLCMC7805AECTPOWERCIRCUITSFixedPositiveStandardRegulator,5VBIPolar,TO-220,3PINFairchildSemiconductorCorporationMC7805ECTPOWERCIRCUITSFixedPositiveStandardRegulator,5VBIPolar,TO-220,3PINFairchildSemiconductorCorporationMC7805ACTBUPOWERCIRCUITSFixedPositiveStandardRegulator,5VBIPolar,PSFM3,TO-220,3PINFairchildSemiconductorCorporationMC7805CT-BP-HFPOWERCIRCUITSFixedPositiveStandardRegulator,MicroCommercialComponentsUPC7805AHF-AZPOWERCIRCUITSFixedPositiveStandardRegulator,5VBIPolar,PSFM3,ISOLATED,PLASTIC,TO-220,SIP-3NECElectronicsAmericaIncKA7805TSTUPOWERCIRCUITSFixedPositiveStandardRegulator,5VPSFM3,TO-220,3PINFairchildSemiconductorCorporationL7805CVPopularitybyRegionL7805CVMarketPriceAnalysisL7805CVDesignConsiderationTheL78seriesoffixedvoltageregulatorsaredesignedwiththermaloverloadprotectionthatshutsdownthecircuitwhensubjectedtoanexcessivepoweroverloadcondition,internalshort-circuitprotectionthatlimitsthemaximumcurrentthecircuitwillpass,andoutputtransistorsafe-areacompensationthatreducestheoutputshortcircuitcurrentasthevoltageacrossthepasstransistorisincreased.Inmanylowcurrentapplications,compensationcapacitorsarenotrequired.However,itisrecommendedthattheregulatorinputbebypassedwithacapacitoriftheregulatorisconnectedtothepowersupplyfilterwithlonglengths,oriftheoutputloadcapacitanceislarge.Aninputbypasscapacitorshouldbeselectedtoprovidegoodhigh-frequencycharacteristicstoensurestableoperationunderallloadconditions.A0.33Forlargertantalum,mylarorothercapacitorhavinglowinternalimpedanceathighfrequenciesshouldbechosen.Thebypasscapacitorshouldbemountedwiththeshortestpossibleleadsdirectlyacrosstheregulatorsinputterminals.Normallygoodconstructiontechniquesshouldbeusedtominimizegroundloopsandleadresistancedropssincetheregulatorhasnoexternalsenselead.Theadditionofanoperationalamplifierallowsadjustmenttohigherorintermediatevalueswhileretainingregulationcharacteristics.Theminimumvoltageobtainedwiththearrangementis2Vgreaterthantheregulatorvoltage.Thecircuitofahighcurrentvoltageregulator(thefigureisshownbelow)canbemodifiedtoprovidesupplyprotectionagainstshortcircuitbyaddingashortcircuitsenseresistor,RSC,andanadditionalPNPtransistor.ThecurrentsensingPNPmustbeabletohandletheshortcircuitcurrentofthethreeterminalregulator.Thereforeafourampereplasticpowertransistorisspecified.L7805CVManufacturerSTmicroelectronics(ST)groupwasestablishedinJune1988asaresultofthemergerofSGSMicroelectronicsofItalyandThomsonOfFrance.InMay1998SGS-ThomsonMicroelectronicschangeditsnametoSTmicroelectronicsLimited.Itistheworldslargestmanufacturerofdedicatedanalogchipsandpowerconversionchips,theworldslargestsupplierofindustrialsemiconductorsandset-topboxchips,andaworldleaderindiscretecomponents,mobilephonecameramodules,andautomotiveintegratedcircuits.ComponentDatasheetL7805CVDatasheetFAQWhatisl7805cv?STMicroelectronicsL7805CV|3-PinLinearRegulatorLinearRegulators.WhatistheworkingprincipleofIC7805?AvoltageregulatorICmaintainstheoutputvoltageataconstantvalue.7805IC,amemberof78xxseriesoffixedlinearvoltageregulatorsusedtomaintainsuchfluctuations,isapopularvoltageregulatorintegratedcircuit(IC).Thexxin78xxindicatestheoutputvoltageitprovides.HowdoItesta7805withamultimeter?TurnontheDCpowersupplyandadjusttheoutputvoltageofabout8Vorslightlylarger.Oralternatively,youcanuseabattery9V-12Vasvoltagesource.Lookatthevoltmeterpanelwhenyousetthevoltage.PrepareaDCvoltmeterreadingonvoltagerange50VtomeasuretheoutputvoltageoftheIC7805.Howdoes7805regulatevoltage?For7805IC,itis+5VDCregulatedpowersupply.ThisregulatorICalsoaddsaprovisionforaheatsink.Theinputvoltagetothisvoltageregulatorcanbeupto35V,andthisICcangiveaconstant5Vforanyvalueofinputlessthanorequalto35Vwhichisthethresholdlimit.TherehavebeenmanyarticlesaboutLM317,todaywewilltalkaboutLM317Tseparately.Thisblogwillcovernotonlyitspinout,features,applicationsbutalsoitsCADmodels,functionalequivalentsandsomeusefulcircuits,thedatasheetisatthebottomofthepageasalways.TheLM317Tbelongstoasortofanadjustablethreeterminalpositivevoltageregulator,designedtosupplymorethan1.5Aofloadcurrentwithanoutputvoltageadjustableovera1.2Vto3.7Vrange.Thenominaloutputvoltageisselectedbymeansofaresistivedivider,makingthedeviceexceptionallyeasytouseandeliminatingthestockingofmanyconstantregulators.Apartfromusingitasavariablevoltageregulator,LM317TICcanalsobeusedasaconstantvoltageregulator,currentlimiter,Batterycharger,ACvoltageregulatorandevenasanadjustablecurrentregulator.DownbelowisavideoabouthowLM317Tfunctionsinacircuit.AdjustableVoltageRegulatorLM317TfunctionaldemoCatalogLM317TPinoutLM317TFeaturesLM317TSchematicCircuitLM317TSpecificationsLM317TCADModelsLM317TApplicationsLM317TPackageLM317TCircuitLM317TFunctionalEquivalentsLM317TPopularitybyRegionLM317TMarketPriceAnalysisLM317TManufacturerComponentDatasheetLM317TPinoutPinNumberPinNameDescriptionPin1AdjustThispinadjuststheoutputvoltagePin2OutputVoltage(Vout)TheregulatedoutputvoltagesetbytheadjustpincanbeobtainedfromthispinPin3InputVoltage(Vin)TheinputvoltagewhichhastoberegulatedisgiventothispinLM317TFeaturesAccordingtoLM317Tdatasheet,itfeatures:Outputvoltagerange:1.2to37VOutputcurrentinexcessof1.5A0.1%lineandloadregulationCurrentLimitConstantwithTemperature100%ElectricalBurnInEliminatestheNeedtoStockManyVoltages80dBRippleRejectionLM317TSchematicCircuitCircuitschematiccanhelpustounderstandbetterabouthowacomponentorchipisusedandworkedincircuits.Itsareferencetomakethemworkinanactualcircuit.ThefollowingLM317Tcircuitschematicisasampleforreference.LM317TSpecificationsProductAttributeAttributeValueManufacturer:STMicroelectronicsProductCategory:LinearVoltageRegulatorsMountingStyle:ThroughHolePackage/Case:TO-220-3NumberofOutputs:1OutputPolarity:PositiveOutputVoltage:1.2Vto37VOutputCurrent:1.5AOutputType:AdjustableInputVoltageMAX:40VInputVoltageMIN:4.2VMinimumOperatingTemperature:0CMaximumOperatingTemperature:+125CLoadRegulation:0.5%LineRegulation:0.04%/VSeries:LM317Packaging:TubeHeight:9.15mmLength:10.4mmOperatingTemperatureRange:0Cto+125CWidth:4.6mmBrand:STMicroelectronicsPSRR/RippleRejection-Typ:80dBProductType:LinearVoltageRegulatorsFactoryPackQuantity:1000Subcategory:PMIC-PowerManagementICsUnitWeight:0.081130ozLM317TCADModelsPartSymbolFootprint3DModelLM317TApplicationsLM317Tvoltageregulatorisusedinawiderangeincircuits,themostcommonapplications:UsedforPositivevoltageregulationsUsedinmotorcontrolcircuitsCommonlyusedinDesktopPC,DVDandotherconsumerproductsVariablepowersupplyCurrentlimitingcircuitsReversepolaritycircuitsLM317TPackageLM317TCircuitThisishowaLM317TregulatorwouldlookwhenconnectedtoacircuitsothatitsuppliesaconstantDCvoltageoutput.Inthiscircuit,weaddaDCvoltagesupplytotheVINpinoftheregulator.Thisisthepinwhich,again,receivesincomingvoltagewhichthechipwillthenregulatedown.Thevoltagewhichentersthispinmustbelargerthanthevoltageitisfeedingout.Remember,voltageregulatorsarejustdevicesthatregulatevoltagedowntoacertainlevel.Theydonotandcannotcreatevoltageontheirown.Therefore,inordertoagetavoltage,VOUT,VINmustbegreaterthanVOUT.Inthiscircuit,wewantaregulated5VDCasoutput.Therefore,VINmustbegreaterthan5volts.Generally,withregulators,unlesstheyarelowdropoutregulators,youwanttheinputvoltagetobeabout2voltshigher.Sotherefore,sincewewant5voltsasoutput,wewillfeedintothisregulator7volts.Nowthatwevedealtwiththeinputpin,wemustnowdealwiththeadjustablepin(Adj).Thisisthepinwhichallowsustoadjustthevoltagetothelevelwewant.Sincewewant5voltstobeoutput,wemustcalculatewhichvalueofR2willyieldanoutputof5volts.Usingtheformulafortheoutputvoltage,VOUT=1.25V(1+R2/R1).BeingthatR1=240Ω,ourequationisnow5V=1.25V(1+R2/240Ω),soR2=720Ω.SowithR2beingavalueof720Ω,theLM317willoutput5Viffedaninputvoltagegreaterthan5volts.IfyouneedtocalculateoutputvoltagesorwhichresistorR2valueyouwouldneedforacircuit,seeLM317Calculatoronline.Thiscanhelpyoufindtheexactresistorvalueneededforacircuit.ThelastpinoftheLM317istheoutputpin.Thisiswheretheregulatedvoltage(inthiscase,5volts)willcomeout.Tofeedacircuittheregulated5volts,wejustconnectittotheoutputpin.LM317TFunctionalEquivalentsPartNumberDescriptionManufacturerLM317T#PBFPOWERCIRCUITSICVREG1.2V-37VADJUSTABLEPOSITIVEREGULATOR,PSFM3,PLASTIC,TO-220,3PIN,AdjustablePositiveSingleOutputStandardRegulatorLinearTechnologyLM317T2POWERCIRCUITS1.2V-37VADJUSTABLEPOSITIVEREGULATOR,PSFM3,PLASTIC,TO-220,3PINMotorolaMobilityLLCLM317KCSPOWERCIRCUITS1.5-A,40-V,adjustablelinearvoltageregulator3-TO-2200to125TexasInstrumentsLM317T/NOPBPOWERCIRCUITSICVREG1.2V-37VADJUSTABLEPOSITIVEREGULATOR,PSFM3,ROHSCOMPLIANT,PLASTIC,TO-220,3PIN,AdjustablePositiveSingleOutputStandardRegulatorNationalSemiconductorCorporationLM317KCPOWERCIRCUITS3/4Pin1.5AAdjustablePositiveVoltageRegulator3-TO-2200to125TexasInstrumentsLM317PPOWERCIRCUITS1.2Vto37VadjustablevoltageregulatorsSTMicroelectronicsLM317BT4POWERCIRCUITS1.2V-37VADJUSTABLEPOSITIVEREGULATOR,PSFM3,PLASTIC,TO-220,3PINMotorolaMobilityLLCLM317BTPOWERCIRCUITS1.2V-37VADJUSTABLEPOSITIVEREGULATOR,PSFM3,PLASTIC,TO-220,3PINONSemiconductorLM317BTGPOWERCIRCUITSLinearVoltageRegulator,1.5A,HighPSRR,Adjustable,PositiveTJ=-40to+125C,TO-220,SINGLEGAUGE,3-LEAD,50-TUBEONSemiconductorLM317KCE3POWERCIRCUITS3/4Pin1.5AAdjustablePositiveVoltageRegulator3-TO-2200to125TexasInstrumentsLM317TPopularitybyRegionLM317TMarketPriceAnalysisLM317TManufacturerSTMicroelectronics(SGS-THOMSON,ST)groupwasestablishedin1987bythemergerofSGSMicroelectronicsinItalyandThomsonSemiconductorinFrance.InMay1998,SGS-THOMSONMicroelectronicschangeditscompanynametoSTMicroelectronicsCo.,Ltd.STMicroelectronicsisoneoftheworldslargestsemiconductorcompanies.Itaimstobethemarketleaderinmultimediaapplicationintegrationandpowersolutions.STMicroelectronicshastheworldsmostpowerfulproductlineup,includingdedicatedproductswithhighintellectualpropertyrights.Products,therearealsoinnovativeproductsinmanyfields,suchasdiscretedevices,high-performancemicrocontrollers,securitysmartcardchips,andmicro-electromechanicalsystems(MEMS)devices.ComponentDatasheetLM317TDatasheet

LM7805isa5VoutputpositivevoltageregulatorIC.ItistheICofLM78xxpositivevoltageregulatorseries.ItismanufacturedinTO-220andotherpackages.ThisICisquitereliableduetowhichitiswidelyusedincommercialequipmentandeducationalproject.Thisblogmainlyintroducethepinout,specification,applicationcircuitsandotherusefulinformationofLM7805,includinghowtousethisdeviceproperbly.CatalogLM7805PinoutLM7805FeaturesLM7805ApplicationsLM7805FunctionalBlockDiagramLM7805FunctionalEquivalentsLM7805TypicalApplicationsLM7805PackageHowtoSafelyLongRunLM7805inaCircuitLM7805ManufacturerComponentDatasheetLM7805PinoutPinNumberPinNameDescription1Input(V+)UnregulatedInputVoltage2Ground(Gnd)ConnectedtoGround3Output(Vo)OutputsRegulated+5VLM7805FeaturesOutputCurrentupto1.5AAvailableinFixed5-V,12-V,and15-VOptionsOutputVoltageTolerancesof2%atTJ=25C(LM340A)LineRegulationof0.01%/Vofat1-ALoad(LM340A)LoadRegulationof0.3%/A(LM340A)InternalThermalOverload,Short-CircuitandSOAProtectionAvailableinSpace-SavingSOT-223PackageOutputCapacitanceNotRequiredforStabilityLM7805ApplicationsIndustrialPowerSuppliesSMPSPostRegulationHVACSystemsACInventorsTestandMeasurementEquipmentBrushedandBrushlessDCMotorDriversSolarEnergyStringInvertorsLM7805FunctionalBlockDiagramLM7805FunctionalEquivalentsPartNumberDescriptionManufacturerLM7805A-220MR1POWERCIRCUITS5VFIXEDPOSITIVEREGULATOR,PSFM3,METAL,TO-220,3PINTTElectronicsPowerandHybrid/SemelabLimitedLM7805A-220MPOWERCIRCUITSFixedPositiveStandardRegulator,5VPSFM3,METAL,TO-220,3PINTTElectronicsResistorsLM340T-5POWERCIRCUITSFixedPositiveStandardRegulator,5VBIPolar,PSFM3,PLASTIC,SFM-3MotorolaSemiconductorProductsUA7805CKCSPOWERCIRCUITS5VFIXEDPOSITIVEREGULATOR,PSFM3,ROHSCOMPLIANT,PLASTIC,TO-220,3PINRochesterElectronicsLLCMC7805AECTPOWERCIRCUITSFixedPositiveStandardRegulator,5VBIPolar,TO-220,3PINFairchildSemiconductorCorporationMC7805ECTPOWERCIRCUITSFixedPositiveStandardRegulator,5VBIPolar,TO-220,3PINFairchildSemiconductorCorporationMC7805ACTBUPOWERCIRCUITSFixedPositiveStandardRegulator,5VBIPolar,PSFM3,TO-220,3PINFairchildSemiconductorCorporationMC7805CT-BP-HFPOWERCIRCUITSFixedPositiveStandardRegulator,MicroCommercialComponentsUPC7805AHF-AZPOWERCIRCUITSFixedPositiveStandardRegulator,5VBIPolar,PSFM3,ISOLATED,PLASTIC,TO-220,SIP-3NECElectronicsAmericaIncKA7805TSTUPOWERCIRCUITSFixedPositiveStandardRegulator,5VPSFM3,TO-220,3PINFairchildSemiconductorCorporationLM7805TypicalApplicationsDownbelowisatypicalapplicationcircuitoftheLM7805IC,whichLM7805workas+5Vvoltageregulator.Wejustneedtwocapacitorsofvale33ufand0.1uftogetthisICworking.Theinputcapacitor0.33uFisaceramiccapacitorthatdealswithinputinductanceproblemandtheoutputcapacitor0.1uFisalsoaceramiccapacitorthataddstothestabilityofthecircuit.Thesecapacitorsshouldbeplacedclosetotheterminalsforthemtoworkeffectively.Alsotheyshouldbeofceramictype,sinceceramiccapacitorsarefasterthanelectrolytic.LM7805canalsoactasanadjustableoutputvoltageregulator,meaningyoucanalsocontroltheoutputvoltageforyourdesiredvalueusingthebelowcircuit.Here,theinputvoltagecanbeanywherebetween9V-25V,andtheoutputvoltagecanbeadjustedusingthevalueofresistanceR1andR2.Thevaluecanbecalculatedusingthebelowformulae.Where,Vxx=5,IQ=5*10-3LM7805PackageTO-263PackageTO-220PackageFormoreLM7805packages,pleasecheckthedatasheetatthebottomofthepage.HowtoSafelyLongRunLM7805inaCircuitLM7805isusedbymanyelectronicshobbyistsandtinkerersintheirprojectsduetoitslowcost,easytouseandlowexternalcomponents.TheIChasmanybuiltinfeatureswhichmakeitidealtouseinvarietyofelectronicapplicationslikethe1.5Aoutputcurrent,overloadprotectionfunction,overheatprotection,lowquiescentcurrentetc.So,howtomakeitworksafelyandpersistantlywhenitwasusedinacircuit?Forstableandlongtermperformanceconsideration,LM7805issuggestedtonotoperateloadmorethan1.5A,andmakesurealwaysuseasuitableheatsinkwithit,alwayscheckpinoutbeforeusinginyourapplication,anddonotoperateintemperaturebelow0degreeCelsiusandabove+125degreeCelsius,whatsmore,alwaysstoreitintemperatureabove-65degreeCelsiusandbelow+150degreeCelsius.LM7805ManufacturerTexasInstrumentsIncorporated(TI)isanAmericantechnologycompanyheadquarteredinDallas,Texas,thatdesignsandmanufacturessemiconductorsandvariousintegratedcircuits,whichitsellstoelectronicsdesignersandmanufacturersglobally.Itisoneofthetop10semiconductorcompaniesworldwidebasedonsalesvolume.Thecompanysfocusisondevelopinganalogchipsandembeddedprocessors,whichaccountformorethan80%ofitsrevenue.TIalsoproducesTIdigitallightprocessingtechnologyandeducationtechnologyproductsincludingcalculators,microcontrollersandmulti-coreprocessors.Thecompanyholds45,000patentsworldwideasof2016.ComponentDatasheetLM7805DatasheetTIP31Cisabipolarpowertransistorwhichdesignedforuseingeneralpurposeamplifierandswitchingapplications.Thisblogmainlyintroducepinout,equivalents,applicationsandotherdetailedinformationaboutTIP31C.DownbelowisavideoshowshowtouseTIP31Ctomakeanaudioamplifier.UsingTIP31CMakingPowerfulAudioAmplifierCatalogTIP31CPinConfigurationandFunctionsTIP31CFeaturesTIP31CApplicationsTIP31CPackageWheretoUseTIP31CHowtoUseTIP31CTIP31CFunctionalEquivalentsTIP31CPopularitybyRegionTIP31CMarketPriceAnalysisTIP31CManufacturerComponentDatasheetOrderingQuantityTIP31CPinConfigurationandFunctionsLikeanyothertransistorithasthreepinsnamelyEMITTER,BASEandCOLLECTOR.ThepinconfigurationofTIP31Cisgivenbelow.PinNumberPinNameDescription1Base(B)NormallyusedasTRIGGERtoturnONtheTRANSISTOR.2Collector(C)NormallyconnectedtoLOAD3Emitter(E)NormallyconnectedtoGROUNDTIP31CFeaturesNewenhancedseriesHighswitchingspeedhFEimprovedlinearityhFEGroupingTIP31CApplicationsDCmotorspeedcontrolLightingsystemsPWMapplicationsRelaydriversSwitchmodepowersupplyAudioAmplifiersSignalAmplifiersTIP31CPackageWheretoUseTIP31CTIP31Ccanbeusedinthesituationsbelow:Situation1:Whenyouwantasimpleswitchingdeviceformediumpowerloads.TIP31CisoneofthebasicTRANSISTORSouttherewhichareeasilyavailableandcheap.Withelectricalcharacteristicssuitingmanyapplicationsitisfairlypopular.Sothecomponentisbestsuitedwhenchoosingarandomswitchingdevice.Situation2:Whenyouwantamplifyasignal.TheamplifyingfactorofTIP31Cisfairlygoodandtheimportantthingisgainisalmostlinear.SothesecharacteristicsmakeTIP31Coneofbestcontenderforamplifyingapplications.Situation3:TIP31Ccanbecontrolledbymicrocontrollerpulsesbecauseofitsgainandhighspeedresponse.Soitcanbeusedinhighspeedswitchingapplications.HowtoUseTIP31CTIP31Ccanbeusedlikeanyotherpowertransistor.HerewearegoingtouseTIP31Cincommonemitterconfigurationtounderstanditsworking.InthecircuitaboveweareusingTIP31Casasimpleswitchingdevice.AsshowinfigureweareusingasmallDCMOTORastheLOAD.TheTRIGGERforturningONtheTRANSISTORisprovidedbyCONTROLUNIT(NOTMICROCONTROLLERasMICROCONTROLLERcannotdeliver300mA).Thecontrolunitprovides+5VpulsestobaseofTRANSISTOR.TheCONTROLUNITGROUNDmustbeconnectedtoTRANSISTOREMITTERcompulsorily.The10ΩresistorisprovidedforlimitingthecurrentthroughBASE.ThisBASEcurrentlimitingresistorisimportant.Couldbechosenaccuratelybycalculating:MaximumcurrentthroughBASE=1AmpChooseBASEcurrent=0.9AmpMaximumVoltageacrossBASEandEMITTER=5VoltChooseVbe=4.5VoltageacrossresistorR=CONTROLUNITVOLTAGEOUTPUT4.5=XXVResistorR=XX/0.9=YYΩ.PutYYΩresistanceinserieswithbaseasshownincircuit.UndernormalconditionstheTRANSISTORwillbeOFFasthesewillbenoBASEcurrent.WhentheCONTROLUNITvoltagepulsesreachesBASEthencurrentflowsthroughBASEofTRANSISTOR.WithBASEcurrentflow,TRANSISTORgetsturnedON.WiththattherewillbeCOLLECTORcurrentwhichflowsthroughMOTOR.SotheMOTORrotates.TheMOTORwillbekeeprotatinguntiltherewillbeBASEcurrent.WhentheCONTROLUNIToutputgoesLOWtheBASEcurrentbecomesZERO.TheTRANSISTORgetsturnedOFFwhentheBASEcurrentbecomesZERO.SotheCOLLECTORcurrentalsobecomesZERO,bringingMOTORtoSTOP.ThiswaywecanuseTIP31Casaswitchingdevice.Thecircuitusedaboveisasimpletestingcircuitandisnotanapplicationcircuit.UsingitwithoutarrangementslikeHEAKSINK,FLYBACKDIODEetc,willdamagethedevice.ForusingtheTIP31Casanamplifieroneneedstoconsidercurrentgaincharacteristics.SowewillintroducetheCURRENTGAINgraphofTIP31Cforbetterunderstanding.ThetypicalDCGAINgraphofTIP31Cisgivenbelow.FromgraphtheGAINisalmost100whenCOLLECTORcurrentis1000mAor1A.AndGAINdropsto60whenCOLLECTORcurrentis2000mAor2A.WhenCOLLECTORcurrentgoesbeyond2AtheGAINisalmostlinear.ThisparametervalueisimportantforAPLIFIERS.Bytakingtheserangesintoconsiderationwecanmakeappropriatearrangementsforbetterperformance.TIP31CFunctionalEquivalentsTIP31CPopularitybyRegionTIP31CMarketPriceAnalysisTIP31CManufacturerFairchildSemiconductorInternational,Inc.wasanAmericansemiconductorcompanybasedinSanJose,California.Foundedin1957asadivisionofFairchildCameraandInstrument,itbecameapioneerinthemanufacturingoftransistorsandofintegratedcircuits.TheCompanyoffersloadswitches,transistors,sensors,drivers,transceivers,andautomotiveproducts.InSeptember2016,FairchildwasacquiredbyONSemiconductor.ComponentDatasheetTIP31CDatasheet

访客,请您发表评论:

Powered By Tkool Electronics

Copyright Your WebSite.sitemap