所需E币: 5
时间: 2020-1-9 14:42
大小: 202.03KB
DCtoDC升壓IC應用NCP1450APWMStepupDCDCControllerTheNCP1450AseriesarePWMstep-upDC-DCswitchingcontrollerthatarespeciallydesignedforpoweringportableequipmentfromoneortwocellsbatterypacks.TheNCP1450Aserieshaveadriverpin,EXTpin,forconnectingtoanexternaltransistor.LargeoutputcurrentscanbeobtainedbyconnectingalowON-resistanceexternalpowertransistortotheEXTpin.Thedevicewillautomaticallyskipswitchingcyclesunderlightloadconditiontomaintainhighefficiencyatlightloads.Withonlysixexternalcomponents,thisseriesallowsasimplemeanstoimplementhighlyefficientconverterforlargeoutputcurrentapplications.Eachdeviceconsistsofanon-chipPWM(PulseWidthModulation)oscillator,PWMcontroller,phase-compensatederroramplifier,s……