价格:未填
供应:99999
发货:3天内
GeneralDescriptionTheSN3350isacontinuousmodeinductivestep-downconverter,designedfordrivingasingleLEDormultipleseriesconnectedLEDsefficientlyfromavoltagesourcehigherthantheLEDvoltage.Thedeviceoperatesfromaninputsupplybetween6Vand40Vandprovidesanexternallyadjustableoutputcurrentofupto750mA.Dependinguponsupplyvoltageandexternalcomponents,thiscanprovideupto30wattsofoutputpower.TheSN3350includesanintegratedoutputswitchandahigh-sideoutputcurrentsensingcircuit,whichusesanexternalresistortosetthenominalaverageoutputcurrent.OutputcurrentcanbeadjustedlinearlybyapplyinganexternalcontrolsignaltotheADJpin.TheADJpinwillaccepteitheraDCvoltageoraPWMwaveform.Thiswillprovideeitheracontinuousoragatedoutputcurrent.Applyingavoltageof0.2VorlowertotheADJpinturnstheoutputoffandswitchesthedeviceintoalowcurrentstandbystate.ThedeviceisassembledinSOT23-5andSOT89-5package.SOT23-5isavailablefor350mAoutputcurrentapplication;SOT89-5isavailablefor700mAoutputcurrentapplication.