CAT3604 white LED driver circuit diagram

Published:2011/8/12 2:41:00 Author:Lucas | Keyword: white LED driver | From:SeekIC

CAT3604 is the charge pump which works in 1x, 1.5x mode, and adjusting the current of each white LED pin (it has total four white LED pins) can regulate the brightness uniformity. CAT3604 work in a fixed frequency of 1MHz, it uses low-value ceramic capacitors. The enable input pin can make CAT3604 enter the power-down mode with input quiescent current which almost zero . CAT3604 can drive parallel white LEDs to provide tightly matched regulated current. The external resistor RSET controls the output current. CAT3604 is suitable for single-cell lithium-ion battery-powered portable electronic devices.



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