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    首頁產(chǎn)品索引NCP1216

    NCP1216

    購買收藏
    ?PWM Controller, Fixed Frequency, Current Mode

    制造商：ON

    中文數(shù)據(jù)手冊

    產(chǎn)品信息

    Housed in an SOIC-8 or DIP-7 package, the NCP1216 represents an enhanced version of NCP1200-based controllers. Due to its high drive capability, NCP1216 drives large gate-charge MOSFETs, which together with internal ramp compensation and built-in frequency jittering, ease the design of modern AC/DC adapters.
    With an internal structure operating at different fixed frequencies, the controller supplies itself from the high-voltage rail, avoiding the need of an auxiliary winding. This feature naturally eases the designer task in some particular applications, e.g. battery chargers or TV sets. Current-mode control also provides an excellent input audio-susceptibility and inherent pulse-by-pulse control. Internal ramp compensation easily prevents sub-harmonic oscillations from taking place in continuous conduction mode designs.
    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 a user adjustable low peak current, no acoustic noise takes place.
    The NCP1216 features an efficient protective circuitry, which in presence of an overcurrent condition disables the output pulses while the device enters a safe burst mode, trying to restart. Once the default has gone, the device auto-recovers.
    • No auxiliary winding operation
    • Current-mode control with adjustable skip-cycle capability
    • Internal ramp compensation
    • Built-in frequency jittering for better EMI signature
    • Auto-recovery internal output short circuit protection
    • Extremely low no-load standby power
    • 500mA peak current capability
    • Fixed frequency versions at 65 kHz, 100 kHz, 133 kHz
    • Internal temperature shutdown
    • Direct optocoupler connection
    • SPICE models available for TRANsient and AC analysis
    • Pin-to-pin compatible with NCP1200 series
    • Internal 1ms Soft Start (A version Only)
    • Limited Duty Cycle to 50% (A Version Only)
    • Pb-Free packages are available

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    在線購買

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    技術(shù)資料

    標(biāo)題類型大?。↘B）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
    Implementing the NCP1200 in Low-Cost AC/DC ConvertersPDF369 點(diǎn)擊下載
    Conducted EMI Filter Design for the NCP1200PDF534 點(diǎn)擊下載
    PWM Current-Mode Controller for High-Power Universal Off-Line SuppliesPDF391 點(diǎn)擊下載
    Implementing a DC/DC Single-Ended Forward Converter with the NCP1216APDF99 點(diǎn)擊下載
    Offline Buck Converter with Tapped Inductor Improves PerformancePDF100 點(diǎn)擊下載

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