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    首頁產(chǎn)品索引NCP1244

    NCP1244

    購買收藏
    ?Controller, Fixed Frequency, Current Mode, for Flyback Converters

    制造商：ON

    中文數(shù)據(jù)手冊(cè)

    產(chǎn)品信息

    The NCP1244 is a new fixed-frequency current-mode controller featuring Dynamic Self-Supply. This function greatly simplifies the design of the auxiliary supply and the Vcc capacitor by activating the internal startup current source to supply the controller during start-up, transients, latch, stand-by etc. This device contains a special HV dtector which detects the application unplug from the AC input line and triggers the X2 discharge current.
    It features a timer-based fault detection that ensures the detection of overload and an adjustable compensation to help keep the maximum power independent of the input voltage.
    Due to frequency foldback, the controller exhibits excellent efficiency in light load condition while still achieveing very low standby power consumption. Internal frequency jittering, ramp compensation, and a versatile latch input make this controller an excellent candidate for the robust power supply designs.
    A dedicated OFF mode allows to reach the extremely low no load input power consumption via sleeping whole device and thus minimze the power consumption of the control circuitry.
    This product is IEC60950 compliant. Please see the test report and certification in the Conformance report section below.
    • Frequency Foldback and Skip Mode
    • Timer-Based Overload Protection with Latched (Option A) or Auto-Recovery (Option B) operation
    • High voltage current source with Dynamic Self Supply (DSS)
    • Internal Frequency Jittering
    • Adjustable overpower protection
    • Dedicated latch off input
    • Integrated X2 capacitor discharge
    • Power saving off mode when used with NCP4353 or NCP4354

    電路圖、引腳圖和封裝圖

    在線購買

    型號(hào)制造商描述購買
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    NCP1244BD065R2GONIC OFF-LINE CNTRLR PWM CM 7SOIC 立即購買

    技術(shù)資料

    標(biāo)題類型大小（KB）下載
    Fixed Frequency Current Mode Controller for Flyback ConvertersPDF1381 點(diǎn)擊下載
    SOIC 7 CASE OUTLINEPDF60 點(diǎn)擊下載
    NCP1244_PO.PNGUNKNOW6 點(diǎn)擊下載
    NCP1244_MS.PNGUNKNOW11 點(diǎn)擊下載
    NCP1244_PD.PNGUNKNOW3 點(diǎn)擊下載
    NCP1244_AD.PNGUNKNOW27 點(diǎn)擊下載
    IEC 60950 Test Certificate for NCP1244, NCP1246, NCP1247, NCP1248, NCP1240PDF343 點(diǎn)擊下載
    Design Approach to Light-Load Effective Power Supply Utilizing the NCP1244/46 PWM ControllersPDF1697 點(diǎn)擊下載

    應(yīng)用案例更多案例

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