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    首頁(yè)產(chǎn)品索引NCP1288

    NCP1288

    購(gòu)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 NCP1288 is a new generation of the NCP12xx fixed-frequency current-mode controllers featuring a high-voltage start-up current source, pin to pin compatible with the previous generation. Due to its proprietary Soft-Skip? mode combined with frequency foldback, the controller exhibits excellent efficiency in light load condition while still achieving very low standby power consumption. This Soft-Skip feature also dramatically reduces the risk of acoustic noise, which enables the use of inexpensive transformers and capacitors in the clamping network. Internal frequency jittering, ramp compensation, and a versatile latch input make this controller an excellent candidate for converters where ruggedness and components cost are the key constraints. In addition, the controller includes a new high voltage circuitry that combines a startup current source and a brown-out / line OVP detector able to sense the input voltage either from the rectified ac line or the dc filtered bulk voltage. Finally, due to a careful design, the precision of critical parameters is well controlled over the entire temperature range (-40°C to +125°C), enabling easier design and increased safety (e.g. ±5% for the peak current limit, ±7% for the oscillator).
    • Timer-Based Overload Protection with AutoRecovery (Option B) or Latched (Option A) Operation
    • Frequency Jittering
    • Frequency Foldback transitioning into Soft-Skip
    • High-Voltage Current Source with Built-in Brown-out and Line Overvoltage Protections
    • Fixed-Frequency Current-Mode Operation with Built-in Ramp Compensation
    • Adjustable Overpower Compensation
    • Latch-off Input for Severe Fault Conditions, with Direct Connection of an NTC for Overtemperature Protection (OTP)
    • Protection Against Winding Short-Circuit
    • 65 kHz Oscillator (100 kHz and 133 kHz Versions Available Upon Request)
    • V
    • Operation up to 28 V
    • Increased Precision on Critical Parameters
    • ±1.0 A Peak Current Drive Capability
    • 4.0 ms Soft-Start
    • Internal Thermal Shutdown with Hysteresis
    • These Devices are Pb-Free, Halogen Free/BFR free and are ROHS compliant

    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
    NCP1288BD65R2GONNCP1288是一款新一代的NCP12xx固定頻率電流模式控制器,具有高電壓?jiǎn)?dòng)電流,與上一代引腳兼容。通過(guò)專有的Soft-SkipTM模式和頻率折返,該控制器在輕負(fù)載條件下表現(xiàn)出色的效率,同時(shí)實(shí)現(xiàn)非常低的待機(jī)功耗。此外,該控制器還包括新的高壓電路,結(jié)合啟動(dòng)電流源和欠壓/線路過(guò)壓保護(hù)檢測(cè),能夠感應(yīng)來(lái)自整流交流線路或直流濾波大容量電壓的輸入電壓。設(shè)計(jì)精良,關(guān)鍵參數(shù)在整個(gè)溫度范圍內(nèi)控制良好,使設(shè)計(jì)更簡(jiǎn)單且更安全。 立即購(gòu)買

    技術(shù)資料

    標(biāo)題類型大?。↘B）下載
    Stability Analysis in Multiple Loop SystemsPDF213 點(diǎn)擊下載
    Controller, Fixed Frequency, Current Mode, for Flyback ConvertersPDF270 點(diǎn)擊下載
    32 W, 32 V Universal Input AC-DC Printer Adapter using the NCP1237PDF331 點(diǎn)擊下載
    SOIC 7 CASE OUTLINEPDF60 點(diǎn)擊下載
    NCP1288_PO.PNGUNKNOW6 點(diǎn)擊下載
    NCP1288_PD.PNGUNKNOW51 點(diǎn)擊下載
    NCP1288_AD.PNGUNKNOW24 點(diǎn)擊下載

    應(yīng)用案例更多案例

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