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    首頁(yè)產(chǎn)品索引CAT3604A

    CAT3604A

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    ?White LED Driver, 4-Channel, Regulated Charge Pump

    制造商:ON

    中文數(shù)據(jù)手冊(cè)

    產(chǎn)品信息

    The CAT3604A is a charge pump operating in either 1x (LDO) mode or 1.5x fractional mode regulating current through each of the 4 LED pins. Operation at a fixed high frequency of 1 MHz typical allows the use of very small value ceramic capacitors.
    The CAT3604A drives white light-emitting diodes (LEDs) connected in parallel and provides tightly matched regulated current to achieve uniformity of brightness in LCD backlighting applications. An external resistor R
    controls the output current level. LED currents of up to 30 mA are supported over a range of input supply voltages from 3 V to 5.5 V, making the device ideal for battery-powered applications.
    LED dimming can be accomplished by several methods including using a DC voltage to set the RSET pin current, applying a PWM signal on the Control signals, or adding a switched resistor in parallel with RSET. The Enable input pin allows the device to be placed in power-down mode with ''zero'' quiescent current.
    The CAT3604A features short circuit and overcurrent limiting protection. The device is available in a 16-pad TQFN package with a max height of 0.8 mm.
    • Drives Individually up to 4 LEDs
    • Output Current up to 30 mA per LED
    • Compatible with Supply Voltage of 3 V to 5.5 V
    • Power Efficiency up to 93%
    • 2 Modes of Operation 1x and 1.5x
    • LED On/Off by Control Lines
    • High-frequency Operation at 1 MHz
    • Low Value Ceramic Capacitors
    • 604 Compatible Pinout
    • Soft Start and Current Limiting

    電路圖、引腳圖和封裝圖

    在線購(gòu)買(mǎi)

    型號(hào)制造商描述購(gòu)買(mǎi)
    CAT3604AHV4-T2ON 立即購(gòu)買(mǎi)

    技術(shù)資料

    標(biāo)題類型大?。↘B)下載
    TQFN16, 4x4PDF55 點(diǎn)擊下載
    4-Channel Regulated Charge Pump White LED DriverPDF223 點(diǎn)擊下載
    CAT3604A_PD.GIFUNKNOW3 點(diǎn)擊下載
    CAT3604A_AD.GIFUNKNOW17 點(diǎn)擊下載

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