CAT4238 Datasheet High Efficiency 10 Led Boost Converter

Manufacturer: Catalyst Semiconductor

Datasheet Details

Part number	CAT4238
Manufacturer	Catalyst Semiconductor
File Size	318.22 KB
Description	High Efficiency 10 Led Boost Converter
Download	CAT4238 Download (PDF)

The CAT4238 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 inductor.

LEDs connected in series are driven with a regulated current set by the external resistor R1.

www.DataSheet4U.com CAT4238 High Efficiency 10 LED Boost Converter.

Drives High Voltage LED strings (38V) Up to 87% Efficiency Low Quiescent Ground Current 0.6mA Adjustable Output Current 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).

Brand Logo	Part Number	Description	Manufacturer
	CAT4238	High Efficiency 10 LED Boost Converter	ON Semiconductor

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