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    首頁產(chǎn)品索引CAT32

    CAT32

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    ?White LED Driver

    制造商：ON

    中文數(shù)據(jù)手冊

    產(chǎn)品信息

    The CAT32 is a DC/DC step up converter that delivers a regulated output current. Operation at a constant switching frequency of 1.2MHz allows the device to be used with very small value external inductor and ceramic capacitors.
    The CAT32 is targeted to drive multiple white light-emitting diodes (LEDs) connected in series and provides the necessary regulated current to control the brightness and the color purity. An external resistor R
    controls the output current level. LED currents of up to 40mA can be supported over a wide range of input supply voltages from 2V to 7V, making the device ideal for battery-powered applications.
    A high voltage output stage allows up to 4 White LEDs to be driven in series. Series drive provides inherent current matching.
    LED dimming can be done by using a DC voltage, a logic signal, or a pulse width modulation (PWM) signal. The shutdown input pin allows the device to be placed in power-down mode with 'near zero' quiescent current.
    In addition to overcurrent limiting protection, the device also includes detection circuitry to ensure protection against open-circuit load fault conditions.
    The device is available in a low profile (1mm max height) 6-lead TSOT-23 package.
    • Low quiescent ground current (0.5 mA typical)
    • Power efficiency over 80%
    • Compatible pinout with LT1932
    • Adjustable output current (up to 40 mA)
    • High frequency 1.2 MHz operation
    • Input voltage operation down to 2.0 V
    • Low resistance (0.5Ω) high voltage power switch
    • Drives up to 4 White LEDs in series
    • Shutdown current less than 1μA
    • Load fault protection against open-circuits
    • Low value external components

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    型號制造商描述購買
    CAT32TDI-GT3ON 立即購買

    技術(shù)資料

    標(biāo)題類型大?。↘B）下載
    TSOT-23, 6 LeadPDF53 點(diǎn)擊下載
    CMOS White LED DriverPDF134 點(diǎn)擊下載
    CAT32 White LED Driver Efficiency and Inductor Value TradeoffsPDF154 點(diǎn)擊下載
    CAT32_PD.GIFUNKNOW8 點(diǎn)擊下載
    CAT32_AD.GIFUNKNOW9 點(diǎn)擊下載

    應(yīng)用案例更多案例

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