MAX1576 high-power white LED driver circuit diagram

Published:2011/9/12 19:58:00 Author:Lucas | Keyword: high-power, white LED driver | From:SeekIC

The circuit includes the charge pump regulator (IC1) which is suitable for camera flash applications, and the device can provide current regulation for 8 white LEDs. The LED1 ~ LED8 connected in parallel can provide 480mA current for a single IW, LUXE * tar high-power white LED module. When open drain input (ENM1/ENM2 or ENF1/ENF2) is pulled to ground, IC1 gets into shutdown mode. The circuit uses a thermistor (R2) and dual open-drain comparator (IC2) with internal reference to constitute a compact space and very low-cost thermal shutdown circuit.



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