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A718,pdf,datasheet (HIGH POWER

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  • 上传时间:2021-12-03
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  • 标      签: lcd供电电源芯片 LED

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The A718 is a monolithic switching regulator designed todrive high power LEDs with constant current and is suitable forautomoTIve, industrial, and general lighTIng applicaTIons. Thestep-down (Buck) regulator contains a high-side N-channelMOSFET switch with a current limit of 1.5A in typical.HystereTIc controlled on-time and an external resistor allow theconverter output voltage to adjust as needed to deliver aconstant current to series and series-parallel connected LEDarrays of varying number and type.A718 provides broken/open LED protection, low-powershutdown protection and thermal shutdown protection. LEDdimming control can be accomplished by pulse widthmodulation (PWM) via DIM pin.
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