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    首頁(yè)產(chǎn)品索引NCP4305

    NCP4305

    購(gòu)買(mǎi)收藏
    ?Secondary Side Controller, Synchronous Rectification, for High Efficiency SMPS Topologies

    制造商：ON

    中文數(shù)據(jù)手冊(cè)

    產(chǎn)品信息

    The NCP4305 is high performance driver tailored to control asynchronous rectification MOSFET in switch mode power supplies.Thanks to its high performance drivers and versatility, it can be used invarious topologies such as DCM or CCM flyback, quasi resonantflyback, forward and half bridge resonant LLC.
    The combination of externally adjustable minimum off-time andon-time blanking periods helps to fight the ringing induced by the PCBlayout and other parasitic elements. A reliable and noise less operationof the SR system is insured due to the Self Synchronization feature.The NCP4305 also utilizes Kelvin connection of the driver to theMOSFET to achieve high efficiency operation at full load and utilizesa light load detection architecture to achieve high efficiency at lightload.
    The precise turn?off threshold, extremely low turn?off delay timeand high sink current capability of the driver allow the maximumsynchronous rectification MOSFET conduction time and enablesmaximum SMPS efficiency. The high accuracy driver and 5 V gateclamp enables the use of GaN MOSFETs.
    • Precise True Secondary Zero Current Detection with Adjustable Threshold
    • Typically 20 ns Turn off Delay from Current Sense Input to Driver
    • Zero Current Detection Pin Capability up to 200 V
    • Optional Ultrafast (7ns) Trigger Input
    • Disable Input
    • Adjustable Minimum ON Time and Minimum OFF Time
    • Self Synchronization
    • 8 A Sink, 4 A Source Drive capability
    • Light Load Detection with Modulated Gate Drive
    • 4.5 V & 9 V UVLO Options and 36 V(Max)

    在線購(gòu)買(mǎi)

    型號(hào)制造商描述購(gòu)買(mǎi)
    NCP4305DMNTWGONNCP4305 是一款高性能驅(qū)動(dòng)器，專(zhuān)門(mén)為控制開(kāi)關(guān)模式電源中的同步整流 MOSFET 而設(shè)計(jì)。由于其高性能驅(qū)動(dòng)器和多功能性，可用于多種拓?fù)浣Y(jié)構(gòu)，如 DCM 或 CCM 反激、準(zhǔn)諧振反激、正向和半橋諧振 LLC。外部可調(diào)最短開(kāi)關(guān)時(shí)間間隔時(shí)段的組合有助于抵御 PCB 布局和其他寄生元件產(chǎn)生的振鈴。SR 系統(tǒng)的可靠低噪音運(yùn)行由于自同步功能而得以保證。NCP4305 還利用 MOSFET 的驅(qū)動(dòng)器開(kāi)爾文連接，實(shí)現(xiàn)了滿(mǎn)負(fù)載下的高能效運(yùn)行，利用輕負(fù)載檢測(cè)結(jié)構(gòu)實(shí)現(xiàn)了輕負(fù)載下的高能效。該驅(qū)動(dòng)器精確的關(guān)斷閾值、極低的關(guān)斷延遲時(shí)間和高接受電流功能可實(shí)現(xiàn)最長(zhǎng)的同步整流 MOSFET 導(dǎo)通時(shí)間以及最高的 SMPS 能效。這種高準(zhǔn)確性驅(qū)動(dòng)器和 5V 門(mén)極箝位實(shí)現(xiàn)了 GaN MOSFET 的使用。 立即購(gòu)買(mǎi)
    NCP4305QDR2G-- 立即購(gòu)買(mǎi)
    NCP4305AMTTWG-- 立即購(gòu)買(mǎi)
    NCP4305DMTTWG-- 立即購(gòu)買(mǎi)
    NCP4305ADR2G-- 立即購(gòu)買(mǎi)
    NCP4305DDR2G-- 立即購(gòu)買(mǎi)

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