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CAT3647 - 3-Channel Ultra High Efficiency Quad-Mode LED Driver

General Description

The CAT3647 is a high efficiency quad-mode fractional charge pump that can drive up to three LEDs programmable by a one wire digital interface.

Key Features

  • High efficiency 1.33x charge pump Quad-mode charge pump: 1x, 1.33x, 1.5x, 2x Drives up to 3 LEDs at 30mA each 1-wire EZDim™ 32 linear steps 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 RoHS-compliant 16-pad TQFN packag.

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Datasheet Details

Part number CAT3647
Manufacturer Catalyst Semiconductor
File Size 330.52 KB
Description 3-Channel Ultra High Efficiency Quad-Mode LED Driver
Datasheet download datasheet CAT3647 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.DataSheet4U.com CAT3647 3-Channel Ultra High Efficiency Quad-Mode™ LED Driver with 32 Dimming Levels FEATURES „ „ „ „ „ „ „ „ „ „ „ „ „ „ „ High efficiency 1.33x charge pump Quad-mode charge pump: 1x, 1.33x, 1.5x, 2x Drives up to 3 LEDs at 30mA each 1-wire EZDim™ 32 linear steps 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 RoHS-compliant 16-pad TQFN package LCD Display Backlight Cellular Phones Digital Still Cameras Handheld Devices DESCRIPTION The CAT3647 is a high efficiency quad-mode fractional charge pump that can drive up to three LEDs programmable by a one wire digital interface. The inclusion of a 1.