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CAT4240

Part Number	CAT4240
Manufacturer	Catalyst Semiconductor
Description	6 Watt Boost LED Driver
Published	Aug 14, 2007
Detailed Description	www.DataSheet4U.com CAT4240 6 Watt Boost LED Driver FEATURES Switch Current Limit 750mA Drives H...
Datasheet	CAT4240 PDF File

Overview

www.
DataSheet4U.
com CAT4240 6 Watt Boost LED Driver FEATURES Switch Current Limit 750mA Drives High Voltage LED strings (38V) Up to 87% Efficiency Low Quiescent Ground Current 0.
6mA 1MHz Fixed Frequency Low noise Operation Soft start “in-rush” current limiting Shutdown current less than 1μA Open LED Overvoltage Protection Automatic Shutdown at 1.
9V (UVLO) Thermal overload protection Thin SOT23 5-Lead (1mm max height) DESCRIPTION The CAT4240 is a DC/DC step-up converter that delivers an accurate constant current ideal for driving LEDs.
Operation at a fixed switching frequency of 1MHz allows the device to be used with small value external ceramic capacitors and inducto...

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