YB8YB808FORMR16LED驱动应用方案YB808-MR16应用推荐使用的元件：RS精度大于1%RS=0.1/ILED，比如要输出350mA，则RS=0.1/0.35=0.2857OHM10uF(工作电压>30V)输出电流小于400mA1210陶瓷贴片电容CIN22uF(工作电压>30V)输出电流大于400mA1210陶瓷贴片电容SS14输出电流小于400mA推荐使用SS14，大于400mA推荐SS24DMBRS14（整流二极管）导通压降0.30V，有利于提高系统效率33-47uH(饱和电流>1.8A)输出电流在800mA到1200mAL47-68uH(饱和电流>1.2A)输出电流在400mA到800mA68-100uH(饱和电流>0.6A)输出电流小于400mAYB808DEMOMR16实物图08FORMR16LED驱动应用方案YB808-MR16应用推荐使用的元件：RS精度大于1%RS=0.1/ILED，比如要输出350mA，则RS=0.1/0.35=0.2857OHM10uF(工作电压>30V)输出电流小于400mA1210陶瓷贴片电容CIN22uF(工作电压>30V)输出电流大于400mA1210陶瓷贴片电容SS14输出电流小于400mA推荐使用SS14，大于400mA推荐SS24DMBRS14（整流二极管）导通压降0.30V，有利于提高系统效率33-47uH(饱和电流>1.8A)输出电流在800mA到1200mAL47-68uH(饱和电流>1.2A)输出电流在400mA到800mA68-100uH(饱和电流>0.6A)输出电流小于400mAYB808DEMOMR16实物图HighBrightnessLEDDriverWithHigh-SideCurrentSenseGENERALDESCRIPTIONr,designedfordrivingsingleormultipleseriesconnectedLEDefficientlyfromavoltagesourcehigherthantheLEDvoltage.Thedeviceoperatesfromaninputsupplybetween8Vand40Vandprovidesanexternallyadjustableoutputcurrentofupto1A.Dependinguponsupplyvoltageandexternalcomponents,thiscanprovideupto32wattsofoutputpower.gh-sideoutputcurrentsensingcircuit,whichusesanexternalresistortosetthenominal***erageoutputcurrent,andadedicatedDIMinputacceptseitheraDCvoltageorawiderangeofpulseddimming.Applyingavoltageof0.4VorlowertotheDIMpinturnstheoutputoffandswitchesthedeviceintoalowcurrentstandbystate.TheFEATURES◆Simplelowpartscount◆Wideinputvoltagerange:8Vto40V◆Upto1Aoutputcurrent◆Singlepinon/offandbrightnesscontrolusingDCvoltageorPWM◆Upto1MHzswitchingfrequency◆Typical5%outputcurrentaccuracy◆Inherentopen-circuitLEDprotection◆Highefficiency(upto95%)◆High-SideCurrentSense◆HystereticControl:NoCompensation◆AdjustableC***tantLEDCurrentAPPLICATI***◆LowvoltagehalogenreplacementLEDs◆Automotivelighting◆Lowvoltageindustriallighting◆LEDback-uplighting◆Illuminatedsigns◆Emergencylighting,SELVlighting◆LCDTVbacklighting)