[原创] Maxim MAX16813高效高亮(HB)LED四路驱动方案

Maxim公司的MAX16813是四路高效高亮LED(HB LED)驱动器,其集成的电流模式开关控制器驱动DC/DC转换器,可驱动多串HB LED.输入电压4.75V-40V, LED电流在20mA到150mA内可调整,200Hz时的PWM调光10000:1,可编程开关频率200kHz到2MHz,主要用在汽车显示LED背光源,汽车RCL,DRL,前位和雾灯,LCD TV和台式显示器LED背光源,建筑,工业和环境照明.本文介绍了MAX16813优势和主要特性,框图和多种应用电路以及MAX16813优势和主要特性,电路图,材料清单和PCB设计图.

The MAX16813 high-efficiency, high-brightness LED (HBLED) driver provides four integrated LED current-sinkchannels. An integrated current-mode switching controller drives a DC-DC converter that provides the necessaryvoltage to multiple strings of HB LEDs. The deviceaccepts a wide 4.75V to 40V input voltage range andwithstands direct automotive load-dump events. Thewide input range allows powering HB LEDs for small- tomedium-sized LCD displays in automotive and generallighting applications.
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