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    首頁(yè)產(chǎn)品索引HV9921

    HV9921

    購(gòu)買收藏
    SWITCH MODE LED LAMP DRIVER IC

     

    中文數(shù)據(jù)手冊(cè)

    產(chǎn)品信息

    The HV9921 is a pulse width modulated (PWM) high-efficiency LED driver control IC. It allows efficient operation of LED strings from voltage sources ranging up to 400VDC. The HV9921 includes an internal high voltage switching MOSFET controlled with fixed off-time (TOFF) of approximately 10.5μs. The LED string is driven at constant current, thus providing constant light output and enhanced reliability. The output current is internally fixed at 20mA for HV9921. The peak current control scheme provides good regulation of the output current throughout the universal AC line voltage range of 85 to 265VAC or DC input voltage of 20 to 400V.

      Constant output current: 20mA

      Universal 85 - 265VAC operation

      Fixed off-time buck converter

      Internal 475V power MOSFET

    電路圖、引腳圖和封裝圖

    在線購(gòu)買

    型號(hào)制造商描述購(gòu)買
    HV9921N8-GATSHEATSINK30X30X10MMR-TABT766 立即購(gòu)買
    HV9921N3-GATSHEATSINK30X30X10MML-TABT766 立即購(gòu)買

    應(yīng)用案例更多案例

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