NCL30160规格书

©SemiconductorComponentsIndustries,LLC,2012January,2012−Rev.11PublicationOrderNumber:NCL30160/DNCL301601.0AConstant-CurrentBuckRegulatorforDrivingHighPowerLEDsTheNCL30160isanNFEThystereticstep−down,constant−currentdriverforhighpowerLEDs.Idealforautomotive,industrialandgenerallightingapplicationsutilizingminimalexternalcomponents.TheNCL30160operateswithaninputvoltagerangefrom6.3Vto40V.ThehystereticcontrolgivesgoodpowersupplyrejectionandfastresponseduringloadtransientsandPWMdimmingtoLEDarraysofvaryingnumberandtype.AdedicatedPWMinput(DIM/EN)enableswiderangeofpulseddimmingandahighswitchingfrequencyupto1.4MHzallowstheuseofsmallerexternalcomponentsminimizingspaceandcost.Protectionfeaturesincluderesistor−programmedconstantLEDcurrent,shortedLEDprotection,under−voltageandthermalshutdown.TheNCL30160isavailableinaSOIC−8package.Features•Integrated1.0AMOSFET•VINRange6.3Vto40V•ShortLEDShutdownProtection•Upto1.4MHzSwitchingFrequency•NoControlLoopCompensationRequired•AdjustableLEDCurrent•SinglePinBrightnessandEnable/DisableControlUsingPWM•SupportsAll−CeramicOutputCapacitorsandCapacitor−lessOutputs•ThermalShutdownProtection•Capableof100%DutyCycleOperation•ThisisaPb−FreeDeviceTypicalApplication•LEDDriver•ConstantCurrentSource•AutomotiveLighting•GeneralIllumination•IndustrialLighting†ORDERINGINFORMATIONNCL30160DR2GSOIC−8(Pb−Free)2500/Tape&Reel†Forinformationontapeandreelspecifications,includingpartorientationandtapesizes,pleaserefertoourTapeandReelPackagingSpecificationsBrochure,BRD8011/D.SOIC−8NBCASE751MARKINGDIAGRAM30160ALYWX18A=AssemblyLocationL=WaferLotY=YearW=WorkWeek=Pb−FreePackage18PINCONNECTIONSCSCSGNDVCCLXVINROTDIM/ENABLENCL30160…PINFUNCTIONDESCRIPTIONPinPinNameDescriptionApplicationInformation1,2CSCurrentSensefeedbackpinSetthecurrentthroughtheLEDarraybyconnectingaresistorfromthispintoground.3GNDGroundPinGround.Referencepointforallvoltages4VCCOutputofInternal5VlinearregulatorTheVCCpinsuppliesthepowertotheinternalcircuitry.TheVCCistheoutputofalinearregulatorwhichispoweredfromVIN.A2uFceramiccapacitorisrecommendedforbypassingandshouldbeplacedascloseaspossibletotheVCCandAGNDpins.Donotconnecttoanexternalload.5ROTOff−TimeSettingResistorResistorROTfromthispintoVCCsetstheOff−Timerangeforthehystereticcontroller.6DIM/ENPWMDimmingControl&ENABLEConnectalogic−levelPWMsignaltothispintoenable/disablethepowerMOSFETandLEDarray7VINInputVoltagePinNominaloperatinginputrangeis6.3Vto40V.Inputsupplypintotheinternalcircuitryandthepositiveinputtothecurrentsensecomparators.Duehighfrequencynoise,a10FceramiccapacitorisrecommendedtobeplacedascloseaspossibletoVINandpowerground.8LXDrainofInternalPowerMOSFETTheLXpinconnectstotheinductorandprovidestheswitchingcurrentnecessarytooperateinhystereticmode.NCL30160−0.340VMOSFETDrainVoltagetoGNDLX−40VVCCtoGNDVCC−6VDIM/ENtoGNDDIM−0.36VCStoGNDCS−0.36VROTtoGNDROT−0.36VAbsoluteMaximumJunctionTemperatureTJ(MAX)150°COperatingJunctionTemperatureRangeTJ−40125°CMaximumLEDDriveCurrentILIM1.5AStorageTemperatureRangeTstg−55to+125°CThermalCharacteristicsSOIC−8PlasticPackageMaximumPowerDissipation@TA=25°C(Note1)ThermalResistanceJunction−to−Air(Note2)PDRJA1.11111.7W°C/WLeadTemperatureSoldering(10sec):Re−flow(SMDstylesonly)Pb−Free(Note3)TL260peak°CMoistureSensitivityLevel(Note4)MSL1−StressesexceedingMaximumRatingsmaydamagethedevice.MaximumRatingsarestressratingsonly.FunctionaloperationabovetheRecommendedOperatingConditionsisnotimplied.ExtendedexposuretostressesabovetheRecommendedOperatingConditionsmayaffectdevicereliability.1.Themaximumpackagepowerdissipationlimitmustnotbeexceeded.PDTJ(max)TARJA2.Whenmountedonamulti−layerboardwith35mm2copperarea,using1ozCu.3.60−180secondsminimumabove237°C.4.MoistureSensitivityLevel(MSL):1perIPC/JEDECstandard:J−STD−020A.NCL30160(Unlessotherwisenoted:VIN=12V,TA=25°C,unlessotherwisespecified.)SymbolCharacteristicsMinTypMaxUnitSYSTEMPARAMETERSVINInputSupplyVoltageRangeNormalOperation8.040VFunctional(Note5)6.3IQ_INQuiescentCurrentintoVIN1.5mAVCCInternalRegulatorOutput(Note6)5.0VVUV+Under−VoltageLock−outThreshold(VINRising)5.56.06.5VVUV−Under−VoltageLock−outThreshold(VINFalling)5.25.66.3VCURRENTLIMITANDREGULATIONVCS_ULCSRegulationUpperLimit(CSIncreasing,FETTurns−OFF)25°C213220226mV−40to125°C209231VCS_LLCSRegulationLowerLimit(CSDecreasing,FETTurns−ON)25°C174180186mV−40to125°C171189VOCPOverCurrentProtectLimit(ReferencetoCSPin)500mVFSWSwitchingFrequencyRange(Note7)1400kHzDIMINPUTVPWMH/LPWM(DIM/EN)highlevelinputvoltage1.4VVPWMLPWM(DIM/EN)lowlevelinputvoltage0.4VIDIM−PUDIM/ENPull−upCurrent50AfpwmPWM(DIM/EN)dimmingfrequencyrange0.120kHzdmaxMaximumDutyCycle(Note7)100%POWERMOSFETVBRDSSDrain−to−SourceBreakdownVoltage40VIDSSDrain−to−SourceLeakageCurrent(VGS=0V,VDS=40V)10ARDS(on)OnResistance(Id=500mA)55mVSDSource−DrainBodyDiode(ForwardOn−Vo