CP2122 - Step-Up White-LED Driver

Product Overview

CHIP

Part number	CP2122
Manufacturer	CHIP
File Size	146.52 KB
Description	Step-Up White-LED Driver
Datasheet	CP2122 Datasheet
Additional preview pages of the CP2122 datasheet.

The CP2122 is a step-up DC/DC converter specifically designed for driving white LEDs with a constant current.

an internal soft start to eliminate inrush current during startup. Equipped with built-in over-voltage protection function, the device enters a very low power operating mode during the “OPEN LED” fault conditions. The CP2122 is available in SOT23-5L package. SOT23-5L -40℃~85℃ Features y y y y y y y y Switch current limit 700mA Drives LED strings up to 34V Up to 84% efficiency Soft start “in-rush” current limiting Fast 1.4 MHz switching frequency Built-in over-voltage protection Shutdown curren.

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Published: May 22, 2009 |