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CAT4238

Part Number	CAT4238
Manufacturer	ON Semiconductor
Description	High Efficiency 10 LED Boost Converter
Published	Oct 21, 2016
Detailed Description	CAT4238 High Efficiency 10 LED Boost Converter Description The CAT4238 is a DC/DC step−up converter that delivers an ac...
Datasheet	CAT4238 PDF File

Overview

CAT4238 High Efficiency 10 LED Boost Converter Description 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 1 MHz 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.
LED currents up to 40 mA can be supported over a wide range of input supply voltages up to 5.
5 V, making the device ideal for battery−powered applications.
The CAT4238 high−voltage output stage is perfect for driving mid−size and large panel displays containing up to ten white LEDs in series.
LED di...

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