PT4115是一款连续电感电流导通模式的降压恒流源，用于驱动一颗或多颗串联LED。PT4115输入电压范围从6伏到30伏，输出电流可调，最大可达1.2安。根据不同的输入电压和外部器件，PT4115可以驱动高达数十瓦的LED。PT4115内置功率开关，采用高端电流采样设置LED平均电流，并通过DIM引脚可以接受模拟调光和很宽范围的PWM调光。当DIM的电压低于0.3伏时，功率开关关断，PT4115进入极低工作电流的待机状态。PT4115采用SOT89-5封装和ESOP8封装。 Description:Thisdocumentisageneralproductdescriptionandissubjecttochangewithoutnotice.HynixElectronicsdoesnotassumeanyresponsibilityforuseofcircuitsdescribed.Nopatentlicensesareimplied.Rev02/Apr.2001HynixSemiconductorApplications:Theoutputconnection(J7)forthePT4115ParallelReferenceBoardisastandard2pin,.156Molexheader.TheoutputoftheTK2050isdifferential;theoutputhasapositiveoutput(OUT1+)andanegativeoutput(OUT1-).PleaserefertotheBoardConnectionDiagramfortheconnectorlocations...Features:(4)Theproductsdescribedinthismaterialareintendedtobeusedforstandardapplicationsorgeneralelec-tronicequipment(suchasofficeequipment,communicationsequipment,measuringinstrumentsandhouse-holdappliances).Consultoursalesstaffinadvanceforinformationonthe...