MC7909中文资料

©2002FairchildSemiconductorCorporation•OutputCurrentinExcessof1A•OutputVoltagesof-5,-6,-8,-9,-10,-12,-15,-18and-24V•InternalThermalOverloadProtection•ShortCircuitProtection•OutputTransistorSafeOperatingAreaCompensationDescriptionTheMC79XX/MC79XXA/LM79XXseriesofthreeterminalnegativeregulatorsareavailableinTO-220packageandwithseveralfixedoutputvoltages,makingthemusefulinawiderangeofapplications.Eachtypeemploysinternalcurrentlimiting,thermalshutdownandsafeoperatingareaprotection,makingitessentiallyindestructible.TO-2201.GND2.Input3.Output1VinInternalBlockDigramVOLTAGEREFERENCE+-PROTECTIONCIRCUITRYR1R2RscGNDI1I2OutInQ1Q2OutputInputMC79XX/MC79XXA/LM79XX3-Terminal1ANegativeVoltageRegulatorMC79XX/MC79XXA/LM79XX2AbsoluteMaximumRatingsNote:1.ThermalresistancetestboardSize:76.2mm*114.3mm*1.6mm(1S0P)JEDECstandard:JESD51-3,JESD51-72.AssumenoambientairflowElectricalCharacteristics(MC7905/LM7905)(VI=-10V,IO=500mA,0°C≤TJ≤+125°C,CI=2.2µF,CO=1µF,unlessotherwisespecified.)Note3.Loadandlineregulationarespecifiedatconstantjunctiontemperature.ChangesinVOduetoheatingeffectsmustbetakenintoaccountseparately.Pulsetestingwithlowdutyisused.ParameterSymbolValueUnitInputVoltageVI-35VThermalResistanceJunction-Case(Note1)RθJC5°C/WThermalResistanceJunction-Air(Note1,2)RθJA65OperatingTemperatureRangeTOPR0~+125°CStorageTemperatureRangeTSTG-65~+150°CParameterSymbolConditionsMin.Typ.Max.UnitOutputVoltageVOTJ=+25°C-4.8-5.0-5.2VIO=5mAto1A,PO≤15WVI=-7Vto-20V-4.75-5.0-5.25LineRegulation(Note3)∆VOTJ=+25°CVI=-7Vto-25V-35100mVVI=-8Vto-12V-850LoadRegulation(Note3)∆VOTJ=+25°CIO=5mAto1.5A-10100mVTJ=+25°CIO=250mAto750mA-350QuiescentCurrentIQTJ=+25°C-36mAQuiescentCurrentChange∆IQIO=5mAto1A-0.050.5mAVI=-8Vto-25V-0.10.8TemperatureCoefficientofVD∆Vo/∆TIO=5mA--0.4-mV/°COutputNoiseVoltageVNf=10Hzto100kHzTA=+25°C-40-µVRippleRejectionRRf=120Hz∆VI=10V5460-dBDropoutVoltageVDTJ=+25°CIO=1A-2-VShortCircuitCurrentISCTJ=+25°C,VI=-35V-300-mAPeakCurrentIPKTJ=+25°C-2.2-AMC79XX/MC79XXA/LM79XX3ElectricalCharacteristics(MC7906)(Continued)(VI=-11V,IO=500mA,0°C≤TJ≤+125°C,CI=2.2µF,CO=1µF,unlessotherwisespecified.)Note1.Loadandlineregulationarespecifiedatconstantjunctiontemperature.ChangesinVOduetoheatingeffectsmustbetakenintoaccountseparately.Pulsetestingwithlowdutyisused.ParameterSymbolConditionsMin.Typ.Max.UnitOutputVoltageVOTJ=+25°C-5.75-6-6.25VIO=5mAto1A,PO≤15WVI=-9Vto-21V-5.7-6-6.3LineRegulation(Note1)∆VOTJ=+25°CVI=-8Vto-25V-10120mVVI=-9Vto-13V-560LoadRegulation(Note1)∆VOTJ=+25°CIO=5mAto1.5A-10120mVTJ=+25°CIO=250mAto750mA-360QuiescentCurrentIQTJ=+25°C-36mAQuiescentCurrentChange∆IQIO=5mAto1A-0.050.5mAVI=-8Vto-25V-0.11.3TemperatureCoefficientofVD∆Vo/∆TIO=5mA--0.5-mV/°COutputNoiseVoltageVNf=10Hzto100kHzTA=+25°C-130-µVRippleRejectionRRf=120Hz∆VI=10V5460-dBDropoutVoltageVDTJ=+25°CIO=1A-2-VShortCircuitCurrentISCTJ=+25°C,VI=-35V-300-mAPeakCurrentIPKTJ=+25°C-2.2-AMC79XX/MC79XXA/LM79XX4ElectricalCharacteristics(MC7908)(Continued)(VI=-14V,IO=500mA,0°C≤TJ≤+125°C,CI=2.2µF,CO=1µF,unlessotherwisespecified.)Note1.Loadandlineregulationarespecifiedatconstantjunctiontemperature.ChangesinVOduetoheatingeffectsmustbetakenintoaccountseparately.Pulsetestingwithlowdutyisused.ParameterSymbolConditionsMin.Typ.Max.UnitOutputVoltageVOTJ=+25°C-7.7-8-8.3VIO=5mAto1A,PO≤15WVI=-10Vto-23V-7.6-8-8.4LineRegulation(Note1)∆VOTJ=+25°CVI=-10.5Vto-25V-10160mVVI=-11Vto-17V-580LoadRegulation(Note1)∆VOTJ=+25°CIO=5mAto1.5A-12160mVTJ=+25°CIO=250mAto750mA-480QuiescentCurrentIQTJ=+25°C-36mAQuiescentCurrentChange∆IQIO=5mAto1A-0.050.5mAVI=-10.5Vto-25V-0.11TemperatureCoefficientofVD∆Vo/∆TIO=5mA--0.6-mV/°COutputNoiseVoltageVNf=10Hzto100kHzTA=+25°C-175-µVRippleRejectionRRf=120Hz∆VI=10V5460-dBDropoutVoltageVDTJ=+25°CIO=1A-2-VShortCircuitCurrentISCTJ=+25°C,VI=-35V-300-mAPeakCurrentIPKTJ=+25°C-2.2-AMC79XX/MC79XXA/LM79XX5ElectricalCharacteristics(MC7909)(Continued)(VI=-15V,IO=500mA,0°C≤TJ≤+125°C,CI=2.2µF,CO=1µF,unlessotherwisespecified.)Note:1.Loadandlineregulationarespecifiedatconstantjunctiontemperature.ChangesinVOduetoheatingeffectsmustbetakenintoaccountseparately.Pulsetestingwithlowdutyisused.ParameterSymbolConditionsMin.Typ.Max.UnitOutputVoltageVOTJ=+25°C-8.7-9.0-9.3VIO=5mAto1A,PO≤15WVI=-1.5Vto-23V-8.6-9.0-9.4LineRegulation(Note1)∆VOTJ=+25°CVI=-11.5Vto-26V-10180mVVI=-12Vto-18V-590LoadRegulation(Note1)∆VOTJ=+25°CIO=5mAto1.5A-12180mVTJ=+25°CIO=250mAto750mA-490QuiescentCurrentIQTJ=+25°C-36mAQuiescentCurrentChange∆IQIO=5mAto1A-0.050.5mAVI=-11.5Vto-26V-0.11TemperatureCoefficientofVD∆Vo/∆TIO=5mA--0.6-mV/°COutputNoiseVoltageVNf=10Hzto100kHzTA=+25°C-175-µVRippleRejectionRRf=120Hz∆VI=10V5460-dBDropoutVoltageVDTJ=+25°CIO=1A-2-VShortCircuitCurrentISCTJ=+25°C,VI=-35V-300-mAPeakCurrentIPKTJ=+25°C-2.2-AMC79XX/MC79XXA/LM79XX6ElectricalCharacteristics(MC7910)(Continued)(VI=-17V,IO=500mA,0°C≤TJ≤+125°C,CI=2.2µF,CO=1µF,unlessotherwisespecified.)Note:1.Loadandlineregulationarespecifiedatconstantjunctiontemperature.ChangesinVOduetoheatingeffectsmustbetakenintoaccountseparately.Pulsetestingwithlowdutyisused