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    首頁產(chǎn)品索引NCP1256

    NCP1256

    購買收藏
    ?Low Power Offline PWM Current Mode Controller with Brown-Out Protection

    制造商：ON

    中文數(shù)據(jù)手冊

    產(chǎn)品信息

    The NCP1256 includes everything to build cost-effective switch mode power supplies ranging from a few watts up to several tens of watts. Housed in a tiny TSOP-6 package, the part can be supplied up to 30 V. It hosts a jittered 65 or 100-kHz switching circuitry operated in peak current mode control. When the power in the secondary side starts to decrease, the controller automatically folds back its switching frequency down to a minimum level of 26 kHz. As the power further goes down, the part enters skip cycle while limiting the peak current. NCP1256 comes with several protection features such as a timer-based auto-recovery short circuit protection, lossless OPP, and an easily adjustable Brown Out (BO) pin. Two inputs are provided to latch off the part in a practical way, for instance with OVP and OTP events. Several options exists to chose latch or auto-recovery.
    • Frequency Foldback down to 26 kHz and Skip?cycle in Light Load Conditions
    • 70?ms Timer?based Auto?recovery Short?circuit Protection
    • Frequency Jittering in Normal and Frequency Foldback Modes
    • +500 mA/ ?500 mA Source/Sink Drive Capability
    • Pb?Free Device
    • Fixed?frequency 65?kHz or 100?kHz Current?mode Control Operation
    • Adjustable Over Power Protection (OPP) Circuit, Disabled at Low Line
    • Adjustable Brown Out Level
    • Internally?fixed Slope Compensation Ramp
    • Internally?fixed 4?ms Soft?start
    • Double Hiccup Auto?recovery Short?circuit Protection
    • Pre?short Ready for Latched OCP Option
    • Latched OVP Protection on Vcc
    • Latched Inputs for Improved Robustness (OVP and OTP implementations)
    • EPS 2.0 Compliant

    在線購買

    型號制造商描述購買
    NCP1256BSN65T1GONNCP1256 包括構(gòu)建幾瓦到幾十瓦成本高效開關(guān)模式電源所需的一切功能。該零件采用微型 TSOP-6 封裝，供電范圍高達(dá) 30 V，具有帶抖動的 65 kHz 或 100 kHz 開關(guān)電路，在峰值電流模式控制下運行。當(dāng)輔助側(cè)功率開始降低時，該控制器將其開關(guān)頻率自動折回至最低 26 kHz 的水平。當(dāng)功率進(jìn)一步下降時，該零部件進(jìn)入跳過周期，同時對峰值電流進(jìn)行限制。 NCP1256 帶有若干保護(hù)功能，如基于計時器的短路保護(hù)、無損耗 OPP 和易于調(diào)節(jié)的欠電壓 (BO) 引腳。提供了兩個輸入，以可行方式鎖存關(guān)斷該零件，例如使用 OVP 和 OTP 事件。有若干選項用來選擇鎖存或自動恢復(fù)。 立即購買
    NCP1256BSN100T1G-- 立即購買
    NCP1256ASN65T1G-- 立即購買
    NCP1256ASN100T1G-- 立即購買

    技術(shù)資料

    標(biāo)題類型大?。↘B）下載
    TSOP-6PDF62 點擊下載
    A 60 W AC-DC Demonstrator with NCP1256PDF367 點擊下載
    Standby Power Performance of NCP1256PDF428 點擊下載
    The NCP1256, a Tiny Controller for Offline ConvertersPDF829 點擊下載
    Low Power Offline PWM Current Mode Controller with Brown-Out ProtectionPDF392 點擊下載
    NCP1256B60WGEVB Bill of Materials ROHS CompliantPDF254 點擊下載
    NCP1256B60WGEVB SchematicPDF313 點擊下載
    NCP1256B60WGEVB Gerber layout Files (Zip Format)RAR233 點擊下載

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