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    首頁產(chǎn)品索引MIC2843

    MIC2843

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    6 Channel Linear WLED Driver with Ultra-Fast? PWM Control

     

    產(chǎn)品信息

    The MIC2843 is a high efficiency linear White LED (WLED) driver designed to drive up to six WLEDs, greatly extending battery life for portable display backlighting keypad backlighting, and camera flash in mobile devices. The MIC2843 provides the highest possible efficiency as this architecture has no switching losses present in traditional charge pumps or inductive boost circuits. The MIC2843 provides six linear drivers which maintain constant current for up to six WLEDs. It features a typical dropout of 40mV at 20mA. This allows the WLEDs to be driven directly from the battery eliminating switching noise/losses present with the use of boost circuitry.

    The six channels are matched better than ±3% typical, ensuring uniform display illumination under all conditions. The brightness is controlled through an Ultra Fast PWM? interface operating down to less than 1% duty cycle.

    The MIC2843 is available in the 10-pin 2mm x 2mm Thin MLF??leadless package with a junction temperature range of -40°C to +125°C.

      High efficiency (no voltage boost losses)

      Ultra Fast PWM? control (200Hz to 500kHz)

      Input voltage range: 3.0V to 5.5V

      Dropout of 40mV at 20mA

      Matching better than ±3% (typical)

      Current accuracy better than ±1.5% (typical)

      Maintains proper regulation regardless of how many channels are utilized

      Available in a 10-pin 2mm x 2mm Thin MLF??package

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    型號制造商描述購買
    MIC2843YMT-TRPanasonic - BSG 立即購買

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