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    首頁產(chǎn)品索引CAT3648

    CAT3648

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    ?LED Driver, 4-Channel with 32 Dimming Levels

    制造商：ON

    中文數(shù)據(jù)手冊

    產(chǎn)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

    電路圖、引腳圖和封裝圖

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    型號制造商描述購買
    CAT3648HV3-GT2ON 立即購買

    技術資料

    標題類型大小（KB）下載
    TQFN16, 3x3PDF54 點擊下載
    LED Driver, 4-Channel with 32 Dimming LevelsPDF203 點擊下載
    CAT3648_PD.GIFUNKNOW16 點擊下載
    CAT3648_AD.GIFUNKNOW10 點擊下載

    應用案例更多案例

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