MC7808ABD2T,MC7800,NCV7800,规格书,技术资料,datasheet,PDF

©SemiconductorComponentsIndustries,LLC,2009September,2009−Rev.201PublicationOrderNumber:MC7800/DMC7800,MC7800A,MC7800AE,NCV78001.0APositiveVoltageRegulatorsThesevoltageregulatorsaremonolithicintegratedcircuitsdesignedasfixed−voltageregulatorsforawidevarietyofapplicationsincludinglocal,on−cardregulation.Theseregulatorsemployinternalcurrentlimiting,thermalshutdown,andsafe−areacompensation.Withadequateheatsinkingtheycandeliveroutputcurrentsinexcessof1.0A.Althoughdesignedprimarilyasafixedvoltageregulator,thesedevicescanbeusedwithexternalcomponentstoobtainadjustablevoltagesandcurrents.Features•OutputCurrentinExcessof1.0A•NoExternalComponentsRequired•InternalThermalOverloadProtection•InternalShortCircuitCurrentLimiting•OutputTransistorSafe−AreaCompensation•OutputVoltageOfferedin1.5%,2%and4%Tolerance•AvailableinSurfaceMountD2PAK−3,DPAK−3andStandard3−LeadTransistorPackages•NCVPrefixforAutomotiveandOtherApplicationsRequiringSiteandControlChanges•Pb−FreePackagesareAvailableMAXIMUMRATINGS(TA=25°C,unlessotherwisenoted)RatingSymbolValueUnit369C221A936InputVoltage(5.0−18V)(24V)VI3540VdcPowerDissipationPDInternallyLimitedWThermalResistance,Junction−to−AmbientRJA9265Figure15°C/WThermalResistance,Junction−to−CaseRJC5.05.05.0°C/WStorageJunctionTemperatureRangeTstg−65to+150°COperatingJunctionTemperatureTJ+150°CStressesexceedingMaximumRatingsmaydamagethedevice.MaximumRatingsarestressratingsonly.FunctionaloperationabovetheRecommendedOperatingConditionsisnotimplied.ExtendedexposuretostressesabovetheRecommendedOperatingConditionsmayaffectdevicereliability.*ThisdeviceseriescontainsESDprotectionandexceedsthefollowingtests:HumanBodyModel2000VperMIL_STD_883,Method3015.MachineModelMethod200V.TO−220−3TSUFFIXCASE221AB1D2PAK−3D2TSUFFIXCASE93623Seedetailedorderingandshippinginformationinthepackagedimensionssectiononpage23ofthisdatasheet.ORDERINGINFORMATIONHeatsinksurfaceconnectedtoPin2.Pin1.Input2.Ground3.OutputHeatsinksurface(shownasterminal4incaseoutlinedrawing)isconnectedtoPin2.13STANDARDAPPLICATIONAcommongroundisrequiredbetweentheinputandtheoutputvoltages.Theinputvoltagemustremaintypically2.0Vabovetheoutputvoltageevenduringthelowpointontheinputripplevoltage.XX,MC78XXInputCin*0.33FCO**OutputThesetwodigitsofthetypenumberindicatenominalvoltage.Cinisrequiredifregulatorislocatedanappreciabledistancefrompowersupplyfilter.COisnotneededforstability;however,itdoesimprovetransientresponse.Valuesoflessthan0.1Fcouldcauseinstability.***Seegeneralmarkinginformationinthedevicemarkingsectiononpage30ofthisdatasheet.DEVICEMARKINGINFORMATIONDPAK−3DTSUFFIXCASE369C://onsemi.com2R15680R18100kD1ZenerR110.66kR21.56kR179.0kQ7QNPNLATQ17Q9QNPN2Q8QNPNQ14QNPNQ6QNPNQ5QNPN2LAT3AQ18R54.5kR61.0kQ13QNPNQ2QNPN4SUBQ112R1115kQNPN6Q1R714kR31.8kR85.0kDiodeQ16Q4QNPNN+C130PC23.0PR93.0kR16600R2017500Q15QNPNQ10QNPNR22100Q12QNPNR24501.0PR21600R230.2R1927.5kD2ZenerQ19QNPNR141.0kQ20QNPNR289.0kR279.0kR299.0kR256.0kR263.0kR123.0kR103340-(3316ACT)R3018kSenseVout5.01VinR1311660Q3QNPNMC7800C3Figure1.RepresentativeSchematicDiagramThisdevicecontains22activetransistors.ON0755-28269789://onsemi.com3ELECTRICALCHARACTERISTICS(Vin=10V,IO=500mA,TJ=Tlowto125°C(Note1),unlessotherwisenoted)CharacteristicSymbolMC7805B,NCV7805MC7805CUnitMinTypMaxMinTypMaxOutputVoltage(TJ=25°C)VO4.85.05.24.85.05.2VdcOutputVoltage(5.0mA≤IO≤1.0A,PD≤15W)7.0Vdc≤Vin≤20Vdc8.0Vdc≤Vin≤20VdcVO−4.75−5.0−5.254.75−5.0−5.25−VdcLineRegulation(Note4)7.5Vdc≤Vin≤20Vdc,1.0A8.0Vdc≤Vin≤12VdcRegline−−5.01.310050−−0.50.82010mVLoadRegulation(Note4)5.0mA≤IO≤1.0A5.0mA≤IO≤1.5A(TA=25°C)Regload−−1.30.1510050−−1.31.32525mVQuiescentCurrentIB−3.28.0−3.26.5mAQuiescentCurrentChange7.0Vdc≤Vin≤25Vdc5.0mA≤IO≤1.0A(TA=25°C)IB−−−−−0.5−−0.30.081.00.8mARippleRejection8.0Vdc≤Vin≤18Vdc,f=120HzRR−68−6283−dBDropoutVoltage(IO=1.0A,TJ=25°C)VI−VO−2.0−−2.0−VdcOutputNoiseVoltage(TA=25°C)10Hz≤f≤100kHzVn−10−−10−V/VOOutputResistancef=1.0kHzrO−0.9−−0.9−mShortCircuitCurrentLimit(TA=25°C)Vin=35VdcISC−0.2−−0.6−APeakOutputCurrent(TJ=25°C)Imax−2.2−−2.2−AAverageTemperatureCoefficientofOutputVoltageTCVO−−0.3−−−0.3−mV/°C1.Tlow=0°CforMC78XXC,MC78XXAC,=40°CforNCV78XX,MC78XXB,MC78XXAB,andMC78XXAEB2.Loadandlineregulationarespecifiedatconstantjunctiontemperature.ChangesinVOduetoheatingeffectsmustbetakenintoaccountseparately.Pulsetestingwithlowdutycycleisused.ON0755-28269789://onsemi.com4ELECTRICALCHARACTERISTICS(Vin=10V,IO=1.0A,TJ=Tlowto125°C(Note3),unlessotherwisenoted)MC7805AB/MC7805AC/NCV7805ABCharacteristicSymbolMinTypMaxUnitOutputVoltage(TJ=25°C)VO4.95.05.1VdcOutputVoltage(5.0mA≤IO≤1.0A,PD≤15W)7.5Vdc≤Vin≤20VdcVO4.85.05.2VdcLineRegulation(Note4)ReglinemV7.5Vdc≤Vin≤25Vdc,IO=500mA−0.5108.0Vdc≤Vin≤12Vdc,IO=1.0A−0.8128.0Vdc≤Vin≤12Vdc,IO=1.0A,TJ=25°C−1.34.07.3Vdc≤Vin≤20Vdc,IO=1.0A,TJ=25°C−4.510LoadRegulation(Note4)RegloadmV5.0mA≤IO≤1.5A,TJ=25°C−1.3255.0mA≤IO≤1.0A−0.825250mA≤IO≤750mA−0.5315Qu