LED的线性亮度控制器有64个TAPS

摘要：在这个电路中，数字电位器（DS1869）有助于提供手动控制LED亮度的LED驱动IC（MAX16800）。该电路还提供了对过热和过载条件下的热保护。

Maxim>AppNotes>DigitalPotentiometersDisplayDriversKeywords:LEDdrivers,linearbrightnesscontrollers,digitalpotentiometersJan10,2011APPLICATIONNOTE4561LinearBrightnessControllerforLEDsHas64TapsBy:AhmadAyarAbstract:Inthiscircuit,adigitalpotentiometer(DS1869)aidsanLED-driverIC(MAX16800)inprovidingmanualcontroloftheLEDbrightness.Thecircuitalsoprovidesthermalprotectionagainstexcessiveheatandoverloadconditions.AsimilarversionofthisarticleappearedintheMarch15,2007issueofEDNmagazine.ApplicationsthatincludeLEDsbutnomicrocontroller(orotherformofcontrolintelligence)canbenefitfromasimplecircuitthatprovidesmanualcontroloftheLED'slightintensity.Amon