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TI公司的TPL7407L是七路高压大电路NMOS晶体管阵列,每路输出电流高达600mA,输出电压40V,输出漏电流小于10nA,控制逻辑1.8V-5.0V,主要用混合电力汽车电池管理,电动汽车充电器,马达控制,太阳能逆变器,家用电器,打印机,示波器,通信/服务器电源等.本文介绍了TPL7407L主要特性,简化电路图和多种应用电路.以及评估板TPL7407LEVM主要特性,单路电路图和完整电路图与PCB元件布局图.AlpsElectricAnalogDevicesIR(InternationalRectifier)JRC/NJRKECOTAXRFMDSamsungElectro-MechanicsSeoulSemiconductorTI(TexasInstruments)WalsinTechnologyTheTPL7407Lisahigh-voltage,high-currentNMOStransistorarray.ThisdeviceconsistsofsevenNMOStransistorsthatfeaturehigh-voltageoutputswithcommon-cathodeclampdiodesforswitchinginductiveloads.Themaximumdrain-currentratingofasingleNMOSchannelis600mA.NewregulationanddrivecircuitryaddedtogivemaximumdrivestrengthacrossallGPIOranges(1.8V-5.0V).Thetransistorscanbeparalleledforhighercurrentcapability.TheTPL7407L’skeybenefitisitsimprovedpowerefficiencyandlowerleakagethanaBipolarDarlingtonImplementation.WiththelowerVOLtheuserisdissipatinglessthanhalfthepowerthantraditionalrelaydriverswithcurrentslessthan250mAperchannel.TPL7407L主要特性:600mA-RatedDrainCurrent(PerChannel)CMOSPin-to-PinImprovementof7-channelDarlingtonArray(e.g.ULN2003A)PowerEfficient(VerylowVOL)LessThan4TimesLowerVOLat100mAThanDarlingtonArrrayVeryLowOutputLeakage10nAPerChannelExtendedAmbientTemperatureRange:TA=–40℃to125℃High-VoltageOutputs40VCompatiblewith1.8Vto5.0VMicro-controllersandLogicInterfaceInternalFree-wheelingDiodesforInductiveKick-backProtectionInputPull-downResistorsAllowsTri-statingtheInputDriverInputRC-SnubbertoEliminateSpuriousOperationinNoisyEnvironmentInductiveLoadDriverApplicationsESDProtectionExceedsJESD222kVHBM,500VCDMAvailablein16-pinSOICandTSSOPPackages傲壹电子—电子元器件分销商官网：中文网：主要应用:BatteryManagement:HighCellCountforHEVEVHEVCharger:Level3MotorControl:ACInductionMotorControl:BrushlessDCMotorControl:PermanentMagnetOscilloscopePrinterSolarPowerInvertersWashingMachine:Low-EndEVHEVCharger:Level1&2HVAC-Heating,Ventilating,andAirConditioningMotorControl:BrushedDCMotorControl:Low-VoltageMotorControl:StepperMotorPower:Telecom/ServerAC/DCSupply:DualController:AnalogRefrigeratorWashingMachine:High-End图1.TPL7407L简化电路图图2.TPL7407L步进马达驱动电路图图3.TPL7407L多用图沉驱动电路图图4.TPL7407L24V继电器驱动电路图评估板TPL7407LEVMTheTPL7407LEVMis7-ChannelrelayandInductiveloadsinkdriverevaluationmodulethatdemonstratestheintegratedcircuitTPL7407LDR.TheTPL7407LDRisahigh-performanceperipheraldriverdesignedtodriveloadsofmanytypesincludingrelays,steppermotors,lamps,andlightemittingdiodes.ThisEVMisconfiguredwithsevenpushbuttonsthatsupplyinputtotheTPL7407LdriverandsevenrelaysaredrivenbytheTPL7407Loutputs.Afourterminalblockmustbeconnectedtoexternalpowersuppliestoprovideinputandrelaypower.AlloftheTPL7407Linputandoutputpinsareaccessibleforexternalconnection.图5:评估板TPL7407LEVM外形图评估板TPL7407LEVM主要特性:Sevennumberedpush-buttonscontrolinputforeasybasicdevicetestingThree0.1”spacedpostconnectorportsallowaccesstoallinputandoutputpinsandrelaycontactsThreeopenlocationsperchanneloncircuitboardforusersuppliedcomponentsOnboardrelayloadscanbedisconnectedbyremovingsurfacemountzeroohmresistorsDeviceclearanceareaislargetoallowuseofsmallprofiletemperatureforcingequipment评估板TPL7407LEVM主要指标:图6:评估板TPL7407LEVM单路电路图图7:评估板TPL7407LEVM电路图图8:评估板TPL7407LEVMPCB元件布局图