MP2678 1.7A Li-Ion Battery Charger Protection Circuit QFN-8
MP2678 1.7A Li-Ion Battery Charger Protection Circuit QFN-8

MP2678 1.7A Li-Ion Battery Charger Protection Circuit QFN-8

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pMPS MP2678 — Li-Ion Battery Charger Protection Circuit, 1.7 A output, QFN-8./p
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    MP2678 1.7A Li-Ion Battery Charger Protection Circuit QFN-8

    The MPS MP2678 is a Li-Ion Battery Charger Protection Circuit. It is rated for 1.7 A and handles 1s battery stacks. It is supplied in a QFN-8 package.

    The MP2678 is a high-performance, single-cell Li-ion and Li-polymer battery charger protection circuit with low-dropout mode.

    Key Specifications

    Part NumberMP2678
    FunctionLi-Ion Battery Charger Protection Circuit
    Output Voltage5 V
    Current Rating1.7 A
    Battery Cells1s
    PackageQFN-8
    Ordering CodesMP2678

    Features

    • Input Surge Up to 30V
    • 5V Regulated Output
    • Input Over-Voltage Protection (OVP)
    • MPS Proprietary Battery OVP
    • Output Short-Circuit Protection (SCP)
    • Soft-Stop to Prevent Voltage Spikes
    • Up to 1.7A Load Current
    • Thermal Monitoring
    • Thermal Shutdown
    • Enable (EN) Function

    Typical Application Circuit

    MP2678 typical application circuit
    MP2678 typical application circuit, as published in the MPS datasheet.

    Applications

    • Cell Phones
    • Smartphones
    • Personal Digital Assistants (PDAs)
    • MP3 Players
    • Digital Cameras

    Design Notes

    • Cell measurement accuracy is specified over temperature — calibrate the sense path if the gauge reports state of charge rather than raw voltage.
    • Balance current is limited by the bleed resistor and the pack wiring; check the resulting balance time for the capacity mismatch you expect.
    • Protection thresholds should sit inside the cell maker's absolute limits with margin for measurement error.
    • Keep the sense lines separate from the power path to avoid IR drop corrupting readings.

    Common Questions

    Which package and ordering codes apply to the MP2678?
    QFN-8; order codes include MP2678.
    What are the defining features of the MP2678?
    Input Surge Up to 30V 5V Regulated Output

    Shenzhen Gaorunxin Technology Co., Ltd

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