PT4115是一款連續(xù)電感電流導通模式的降壓恒流源，用于驅動一顆或多顆串聯(lián)LED。PT4115輸入電壓范圍從6伏到30伏，輸出電流可調，最大可達1.2安。根據(jù)不同的輸入電壓和外部器件，PT4115可以驅動高達數(shù)十瓦的LED。PT4115內置功率開關，采用高端電流采樣設置LED平均電流，并通過DIM引腳可以接受模擬調光和很寬范圍的PWM調光。當DIM的電壓低于0.3伏時，功率開關關斷，PT4115進入極低工作電流的待機狀態(tài)。PT4115采用SOT89-5封裝和ESOP8封裝。 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...