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    首頁產(chǎn)品索引NCP1200

    NCP1200

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    ?PWM Controller, Fixed Frequency, Flyback, Current Mode

    制造商：ON

    中文數(shù)據(jù)手冊(cè)

    產(chǎn)品信息

    Housed in SO-8 or DIP-8 package, the NCP1200 represents a major leap toward ultra-compact Switch-Mode Power Supplies. Thanks to a novel concept, the circuit allows the implementation of a complete offline battery charger or a standby SMPS with few external components. Furthermore, an integrated output short-circuit protection lets the designer build an extremely low-cost AC/DC wall adapter associated with a simplified feedback scheme.
    With an internal structure operating at a fixed 40 kHz, 60 kHz or 100 kHz, the controller drives low gate-charge switching devices like an IGBT or a MOSFET thus requiring a very small operating power. Thanks to current-mode control, the NCP1200 drastically simplifies the design of reliable and cheap offline converters with excellent audio- susceptibility and inherent pulse-by-pulse control.
    When the current setpoint falls below a given value, e.g. the output power demand diminishes, the IC automatically enters the so-called skip cycle mode and provides excellent efficiency at light loads. Because this occurs at low peak current, no acoustic noise takes place.
    Finally, the IC is self-supplied from the DC rail, eliminating the need of an auxiliary winding. This feature ensures operation in presence of low output voltage or shorts.
    • No Auxiliary Winding Operation
    • Internal Output Short-Circuit Protection
    • Extremely Low No-Load Standby Power
    • Current-Mode with Skip-Cycle Capability
    • Internal Leading Edge Blanking
    • 250 mA Peak Current Source/Sink Capability
    • Internally Fixed Frequency at 40 kHz, 60 kHz and 100 kHz
    • Direct Optocoupler Connection
    • Built-in Frequency Jittering for Lower EMI
    • SPICE Models Available for TRANsient and AC Analysis
    • Internal Temperature Shutdown
    • Pb-Free Packages are Available

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    在線購買

    型號(hào)制造商描述購買
    NCP1200P40GON 立即購買
    NCP1200D100R2GON 立即購買
    NCP1200P60GON 立即購買
    NCP1200P100GON 立即購買
    NCP1200D40R2GON 立即購買
    NCP1200D60R2GON用于低功耗通用離線電源的PWM電流模式控制器 立即購買

    技術(shù)資料

    標(biāo)題類型大?。↘B）下載
    A Simple Low-Cost Non-Isolated Universal Input Off-Line ConverterPDF139 點(diǎn)擊下載
    PWM Controller, Fixed Frequency, Flyback, Current ModePDF281 點(diǎn)擊下載
    A 70 W Low Standby Power Supply w/NCP120x SeriesPDF178 點(diǎn)擊下載
    Tips and Tricks to Build Efficient Circuits with NCP1200PDF139 點(diǎn)擊下載
    Implementing Constant Current Constant Voltage AC Adapter by NCP1200 and NCP4300APDF62 點(diǎn)擊下載
    NCP1200 Design WorksheetXLS220 點(diǎn)擊下載
    NCP1200 OrCAD Templates.zipRAR67 點(diǎn)擊下載
    NCP1200 uCap Templates.zipRAR279 點(diǎn)擊下載

    應(yīng)用案例更多案例

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