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CAT4139 22V High Current Boost

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  • 上传时间:2021-12-11
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  • 标      签: CAT413 LED

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CAT4139 pdf,datasheet 22V High Current Boost White LED Driver The CAT4139 is a DC/DC step-up converter that delivers anaccurate constant current ideal for driving LEDs. OperaTIon at a fixedswitching frequency of 1 MHz allows the device to be used with smallvalue external ceramic capacitors and inductor. LEDs connected inseries are driven with a regulated current set by the external resistorR1. The CAT4139 is ideal for driving parallel strings of up to fivewhite LEDs in series or up to 22 V.
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