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    首頁(yè)產(chǎn)品索引MIC4827

    MIC4827

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    180V EL Driver

     

    中文數(shù)據(jù)手冊(cè)

    產(chǎn)品信息

    Micrel's MIC4827 is a high output voltage, DC to AC converter, designed for driving electroluminescent (EL) lamps. The device operates from an input voltage range of 1.8V to 5.5V, making it suitable for 1-cell Li-Ion and 2- or 3-cell alkaline/NiCad/NiMH battery applications. The MIC4827 converts a low voltage DC input to a 180VPP AC output signal that drives the EL lamp.The MIC4827 is comprised of two stages: a boost stage, and an H-bridge, lamp driver stage. The boost stage steps the input voltage up to +90V. The H-bridge stage then alternately switches the +90V output to each terminal of the EL lamp, thus creating a 180VPP AC signal to drive the EL lamp and generate light.The MIC4827 features separate oscillators for the boost and H-bridge stages. External resistors independently set the operating frequency of each stage. This flexibility allows the EL lamp circuit to be optimized for maximum efficiency and brightness.The MIC4827 uses a single inductor and a minimum number of external components, making it ideal for portable, space-sensitive applications.The MIC4827 is available in an 8-pin MSOP package with an ambient temperature range of -40°C to +85°C.

      1.8V to 5.5V DC input voltage

      180VPP?regulated AC output waveform

      Independently adjustable EL lamp frequency

      Independently adjustable boost converter frequency

      0.1μA shutdown current

    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
    MIC4827YMM-TRVishay Sprague鉭電容 軸向 立即購(gòu)買
    MIC4827YMMSII Semiconductor CorporationICVOLTDETECTOR 立即購(gòu)買

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