Does anyone have a good circuit for driving an LED backlight? I have a CFAG240128L-YYH-TZ that has an LED backlight rated at 900ma. This needs to be backlit for an automotive application, but running a resistor to supply 13W of power for the backlight will be big, hot and nasty, not to mention pretty inelegant. Anyone have a chopper drive circuit or something that can drive the LED without so much heat? I was thinking maybe if I can't find anything else I might try a stepper motor chopper drive and put a choke in line. Any help would be appreciated.
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Norm
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Norm
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