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    CAT4004A

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     LED Driver, 4-Channel, with 32 Dimming Levels and Reset

    制造商:ON

    中文数据手册

    产品信息

    The CAT4004A provides four matched low dropout current sources to drive LEDs. The CAT400XA uses an external resistor RSET to set the current in the LED channels. Each LED channel includes an individual control loop allowing the device to handle a wide range of LED forward voltages while still maintaining tight current matching.
    The EN/DIM logic inputs supports device enable and a digital dimming interface for setting the LED channel current with 32 linear dimming levels.
    LEDs can be powered directly from a Lithium-ion battery due to the low dropout (50 mV at 20 mA) current sinks. The device is available in the tiny 8-pad UDFN 2 mm x 2 mm package with a max height of 0.55 mm.
    • Low Dropout Driver 50 mV at 20 mA
    • Dimming via 1-wire EZDim Interface
    • 2 and 4 LED Current Sinks with Tight Matching
    • 32 Dimming Levels
    • No Switching Noise
    • Shutdown Current less than 1 µA
    • LED Current set by External Resistor
    • Thermal Shutdown Protection
    • These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS Compliant

    在线购买

    型号制造商描述购买
    CAT4004AHU2-GT3ONCAT4002A和CAT4004A分别提供两个和四个匹配的低压差电流源,用于驱动LED。CAT400XA使用外部电阻RSET设置LED通道的电流。每个LED通道都有独立的控制环路,使该器件能够处理较宽范围的LED正向电压,同时仍保持精确的电流匹配。EN/DIM逻辑输入支持器件使能和数字调光接口,可设置LED通道电流,具有32级线性调光。由于采用低压差(20 mA时为50 mV)电流吸收器,LED可直接由锂离子电池供电。该器件有超小的8焊盘UDFN 2 mm x 2 mm封装(最大高度0.55 mm)以及6引脚SC - 70封装可选。 立即购买

    技术资料

    标题类型大小(KB)下载
    UDFN8, 2x2PDF33 点击下载
    Constant Current LED Driver with 32 Dimming Levels and RsetPDF165 点击下载

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