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    HV9922

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    SWITCH MODE LED LAMP DRIVER IC

     

    产品信息

    The HV9922 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 HV9922 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 50mA for HV9922. 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: 50mA

      Universal 85 - 265VAC operation

      Fixed off-time buck converter

      Internal 475V power MOSFET

    电路图、引脚图和封装图

    在线购买

    型号制造商描述购买
    HV9922N8-GATSHEATSINK30X30X15MML-TABT412 立即购买
    HV9922N3-GATSHEATSINK45X45X10MMXCUTT766 立即购买

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