CAT3644 - 4-Channel Ultra High Efficiency Quad-Mode TM LED Driver

Name: CAT3644
SKU: CAT3644-577834

Catalyst Semiconductor

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Datasheet Details

Part number	CAT3644
Manufacturer	Catalyst Semiconductor
File Size	318.87 KB
Description	4-Channel Ultra High Efficiency Quad-Mode TM LED Driver
Datasheet	CAT3644_CatalystSemiconductor.pdf

CAT3644 Product details

Description

The CAT3644 is a high efficiency quad-mode fractional charge pump that can drive up to four LEDs programmable by a one wire digital interface. tional 1.5x charge pumps with no added external capacitors.

Features

High efficiency 1.33x charge pump.
Quad-mode charge pump: 1x, 1.33x, 1.5x, 2x.
Drives up to 4 LEDs at 25mA each.
1-wire EZDim™ LED current programming.
Power efficiency up to 92%.
Low noise input ripple in all modes.
“Zero” current shutdown mode.
Soft start and current limiting.
Short circuit protection.
Thermal shutdown protection.
3mm x 3mm, 16-lead TQFN package.

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Other Datasheets by Catalyst Semiconductor

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Published: Apr 18, 2007 |