CAT3644 4-Channel Ultra High Efficiency LED Driver Description The CAT3644 is a high efficiency fractional charge pump that can drive up to four LEDs programmable by a one wire digital interface.
The inclusion of a 1.
33x fractional charge pump mode increases device efficiency by up to 10% over traditional 1.
5x charge pumps with no added external capacitors.
Low noise input ripple is achieved by operating at a constant switching frequency which allows the use of small external ceramic capacitors.
The multi−fractional charge pump supports a wide range of input voltages from 2.
5 V to 5.
5 V.
The EN/DIM logic input functions as a chip enable and a digital dimming interface for current setting of...

Since 2006. D4U Semicon,
Electronic Components Datasheet Search Site. (Privacy Policy & Contact)