TEA1733全新原装现货13724201506李生。***:2629331408.NXP公司的TEA1733T,TEA1733P,TEA1733LT和TEA1733LP是低成本GreenChipIII75瓦开关电源(***PS)控制器，适用于反激拓扑。采用固定频率模式和频率抖动，以降低EMI。输入电压12V到30V，保护包括过功率保护(OPP)，输入欠压保护(UVP)和过压保护(OVP)，输出OVP和超温保护(OTP)。控制功率达75W。本文介绍了TEA1733x主要特性，方框图以及典型配置图和典型应用电路图。TEA1733(L)T;TEA1733(L)PGreenChipIII***PScontrolICTheTEA1733T,TEA1733P,TEA1733LTandTEA1733LParelowcostSwitchedModePowerSupply(***PS)controllerICsintendedforflybacktopologies.Theyoperateinfixedfrequencymode.ToreduceELectroMagneticInterference(EMI),frequencyjitterhasbeenimplemented.SlopecompensationisintegratedforContinuousConductionMode(CCM)operation.TheTEA1733(L)includesOverPowerProtection(OPP).Thisenablesthecontrollertooperateunderoverpowersituati***foralimitedamountoftime.Twopins,VINSENSEandPROTECT,arereservedforprotectionpurposes.InputUnderVoltageProtection(UVP)andOverVoltageProtection(OVP),outputOVPandOverTemperatureProtection(OTP)canbeimplementedusingaminimalnumberofexternalcomponents.Atlowpowerlevelstheprimarypeakcurrentissetto25%ofthemaximumpeakcurrentandtheswitchingfrequencyisreducedtolimitswitchinglosses.Thecombinationoffixedfrequencyoperationathighoutputpowerandfrequencyreductionatlowoutputpowerprovideshigh-efficiencyoverthetotalloadrange.TheTEA1733seriesenableslowcost,highlyefficientandreliablesuppliesforpowerrequirementsupto75Wtobedesignedeasilyandwithaminimumnumberofexternalcomponents.TEA1733x主要特性：***PScontrollerICenablinglow-costapplicati***Largeinputvoltagerange(12Vto30V)Verylowsupplycurrentduringstart-upandrestart(typically10μA)Lowsupplycurrentduringnormaloperation(typically0.5mAwithoutload)Overpowerorhigh/lowlinecompensationAdjustableoverpowertime-outAdjustableoverpowerrestarttimerFixedswitchingfrequencywithfrequencyjittertoreduceEMIFrequencyreductionwithfixedminimumpeakcurrenttomaintainhigh-efficiencyatlowoutputpowerlevelsSlopecompensationforCCMoperationLowandadjustableOverCurrentProtection(OCP)triplevelAdjustablesoftstartoperationTwoprotectioninputs(e.g.forinputUVPandOVP,OTPandoutputOVP)ICovertemperatureprotectionTEA1733应用：Allapplicati***requiringefficientandcost-effectivepowersupplysoluti***to75)