MP5921 4-16V, 50A Hot-Swap Intelli-Fuse Solution QFN-28
MP5921 4-16V, 50A Hot-Swap Intelli-Fuse Solution QFN-28

MP5921 4-16V, 50A Hot-Swap Intelli-Fuse Solution QFN-28

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pMPS MP5921 — Hot-Swap Intelli-Fuse Solution, 4-16V input, 50 A output, QFN-28./p
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    MP5921 4-16V, 50A Hot-Swap Intelli-Fuse Solution QFN-28

    The MPS MP5921 is a Hot-Swap Intelli-Fuse Solution. It operates from a 4 V to 16 V input and is rated for 50 A. It is supplied in a QFN-28 package.

    The MP5921 is a monolithic, integrated controller and switch that contains a high-side MOSFET and other circuitries that enable it to work in standalone operation or to be controlled by a hot-swap controller.

    Key Specifications

    Part NumberMP5921
    FunctionHot-Swap Intelli-Fuse Solution
    Input Voltage4 V to 16 V
    Current Rating50 A
    PackageQFN-28
    Ordering CodesMP5921

    Features

    • 4V to 16V Operating Input Range
    • Maximum 50A Output Current
    • Supports 60A of Output Current with Air Flow
    • Integrated Switch with 1mΩ RDS(ON)
    • Built-In MOSFET Driver
    • 3.0V LDO Output
    • Integrated Current Sensing with Sense Output
    • Separate Current Sensing Output Used to Program Over-Current Value
    • Built-In Insertion Delay
    • Adjustable Soft Start (SS)

    Typical Application Circuit

    MP5921 typical application circuit
    MP5921 typical application circuit, as published in the MPS datasheet.

    Applications

    • Hot Swap
    • PC Cards
    • Disk Drives

    Design Notes

    • The current-limit threshold must stay inside the SOA of the pass device at the applied voltage, including startup inrush.
    • Hot-swap inrush control is set by the slew rate on the gate or the dV/dt capacitor — too fast trips the upstream supply.
    • Reverse-current blocking behaviour differs between ideal-diode and load-switch topologies; pick the one that matches the fault you are protecting against.
    • Route the fault flag to a pin the firmware actually polls; a latch-off protection with no report looks like a dead board in the field.

    Common Questions

    What input voltage does the MP5921 support?
    4 V to 16 V. The rated output is 50 A.
    Which package and ordering codes apply to the MP5921?
    QFN-28; order codes include MP5921.
    What are the defining features of the MP5921?
    4V to 16V Operating Input Range Maximum 50A Output Current

    Shenzhen Gaorunxin Technology Co., Ltd

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