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    首页产品索引NCP4308

    NCP4308

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     Synchronous Rectifier Controller

    制造商:ON

    中文数据手册

    产品信息

    The NCP4308 is a synchronous rectifier controller for switch modepower supplies. The controller enables high efficiency designs forflyback, quasi resonant flyback and LLC topologies.
    Externally adjustable minimum off−time and on−time blankingperiods provides flexibility to drive various MOSFET package typesand PCB layout. A reliable and noise less operation of the SR system isinsured due to the Self Synchronization feature. The NCP4308 alsoutilizes Kelvin connection of the driver to the MOSFET to achieve highefficiency operation at full load.
    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. The highaccuracy driver and 5 V gate clamp make it ideally suited for directlydriving GaN devices.
    To provide more flexibility in PCB layout there are two versions of this product.
    NCP4308 does NOT have LLD function
    NCP43080 has LLD function
    • Self−Contained Control of Synchronous Rectifier in CCM, DCM and QR for Flyback or LLC Applications
    • Precise True Secondary Zero Current Detection
    • Rugged Current Sense Pin (up to 150 V)
    • Adjustable Minimum ON−Time
    • Adjustable Minimum OFF-Time with Ringing Detection
    • Adjustable Maximum ON−Time for CCM Controlling of Primary QR Controller
    • Operating Voltage Range up to VCC = 35 V
    • 8 A / 4 A Peak Current Sink / Source Drive Capability
    • GaN Transistor Driving Capability (options A and C)
    • Low Startup Current Consumption
    • Maximum Operation Frequency up to 1 MHz
    • Improved Robust Self Synchronization Capability
    • SOIC-8 and DFN−8 (4x4) and WDFN8 (2x2) Packages
    • These are Pb−Free Devices

    在线购买

    型号制造商描述购买
    NCP4308ADR2GONICSECONDARYSIDECTRLR8SOIC 立即购买
    NCP4308DDR2GONICSECONDARYSIDECTRLR8SOIC 立即购买
    NCP4308QDR2GONICSECONDARYSIDECTRLR8SOIC 立即购买
    NCP4308DMTTWG-- 立即购买
    NCP4308DMNTWG-- 立即购买
    NCP4308AMTTWG-- 立即购买

    技术资料

    标题类型大小(KB)下载
    SOIC-8 Narrow BodyPDF61 点击下载
    8 PIN DFN, 4x4PDF59 点击下载
    WDFN8 2x2, 0.5PPDF59 点击下载
    Synchronous Rectifier ControllerPDF376 点击下载

    应用案例更多案例

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