MAX1578／MAX1579 white LED driver circuit diagram

Published:2011/8/11 4:22:00 Author:Lucas | Keyword: white LED driver | From:SeekIC

MAX1578/MAX1579 offer 4-way adjustable output, which can provide voltage for small active-matrix TFT-LCD display in portable electronic devices, and each device contains three charge pumps for LCD bias power and a boost converter, this converter can drive eight white LEDs for the backlight configuration. MAX1578/MAX1579 input voltage range is 2.7 ~ 5.5V. MAX1578 can adjust constant white LED current in the whole temperature range. MAX1579 has a cooling function to avoid to drive white LEDs in too high temperature environment.



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