首页产品索引CAT3648

    CAT3648

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     LED Driver, 4-Channel with 32 Dimming Levels

    制造商:ON

    中文数据手册

    产品信息

    The CAT3648 is a high efficiency fractional charge pump that can drive up to four LEDs programmable by a one wire digital interface. The inclusion of a 1.33x fractional charge pump mode increases device efficiency by up to 10% over traditional 1.5x charge pumps with no added external capacitors.
    Low noise input ripple is achieved by operating at a constant switching frequency which allows the use of small external ceramic capacitors. The multi-fractional charge pump supports a wide range of input voltages from 2.4 V to 5.5 V.
    The EN/DIM logic input functions as a chip enable and a digital dimming interface for setting the current in all the LED channels. The 1-wire pulse-dimming interface supports 32 linear steps from full-scale down to zero current.
    • High efficiency 1.33x charge pump
    • Quad-mode charge pump: 1x, 1.33x, 1.5x, 2x
    • Drives up to 4 LEDs at 25 mA each
    • 1-wire EZDim™ 32 linear steps
    • Power efficiency up to 92%
    • Low noise input ripple in all modes
    • 'Zero' current shutdown mode
    • Soft start and current limiting
    • Short circuit protection
    • Thermal shutdown protection

    电路图、引脚图和封装图

    在线购买

    型号制造商描述购买
    CAT3648HV3-GT2ONIC LED DRIVER RGLTR DIM 16TQFN 立即购买

    技术资料

    标题类型大小(KB)下载
    TQFN16, 3x3PDF54 点击下载
    LED Driver, 4-Channel with 32 Dimming LevelsPDF203 点击下载
    CAT3648_PD.GIFUNKNOW16 点击下载
    CAT3648_AD.GIFUNKNOW10 点击下载

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