LED driver provides oscillator for microcontroller


Posted on Aug 29, 2012

The major building blocks for a white-LED driver are an oscillator, a charge pump, and a regulated current source. National Semiconductor (www.national.com) produces a device that contains all these building blocks in the highly integrated LM2791/2 IC. You usually use white-LED drivers in tandem with cellular baseband controllers or microcontrollers. You can easily adapt the LM2791/2 to provide a clock source.






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