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    首頁產(chǎn)品索引HV9803B

    HV9803B

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    HV9803B

     

    產(chǎn)品信息

    The HV9803B is an open loop average-mode current control LED driver IC operating in a constant off-time mode. The IC features ±2% current accuracy, tight line and load regulation of the LED current without any need for loop compensation or high-side current sensing. Its auto-zero circuit cancels the effect of both the input offset voltage and the propagation delay in the current sense comparator.The HV9803B can be powered from a 7.0 to 16V supply. The IC features fast PWM dimming response. The linear dimming input LD can accept a reference voltage from 0 to 3.0V.The IC is equipped with a current limit comparator for hiccup-mode output short circuit protection. It also features a programmable input under-voltage shutdown.

      Fast average current control

      Correction for propagation delay and offset voltage

      Fixed off-time switching mode

      Linear dimming input

      PWM dimming input

      Output short circuit protection with programmable skip mode

      Input under-voltage shutdown

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    型號(hào)制造商描述購買
    HV9803BLG-GSiTime有源晶振 50MHz 3V ±25ppm SMD2016_4P 立即購買

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