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CAT3644

ON Semiconductor
Part Number CAT3644
Manufacturer ON Semiconductor
Description 4-Channel Ultra High Efficiency LED Driver
Published Oct 20, 2016
Detailed Description CAT3644 4-Channel Ultra High Efficiency LED Driver Description The CAT3644 is a high efficiency fractional charge pump ...
Datasheet PDF File CAT3644 PDF File

CAT3644
CAT3644

Overview
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...


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