HP 15-fc0007ca Charger Cycling On/Off with Hot MOSFET – Need Component Info

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  • Tomylee
    Member
    • Oct 2024
    • 33
    • Canada
    #1

    HP 15-fc0007ca Charger Cycling On/Off with Hot MOSFET – Need Component Info

    Hello,
    I have an HP 15-fc0007ca that works normally, but when I plug in the charger while the laptop is powered on, the charging cycles on and off repeatedly—it starts charging, stops, then starts again.

    Using a thermal camera, I identified a MOSFET that is overheating, along with a small 2R2 resistor next to it that gets even hotter than the MOSFET.

    I also hear a “zpzpzpzp” type noise, but the noise is not coming from the same area as the hot MOSFET. I will include a photo with the exact spot where the noise is coming from highlighted.

    I searched online for information on this MOSFET (exact reference, equivalent parts, and its role on this AMD-based board), but I wasn't able to find anything.
    If anyone can identify this MOSFET or provide a Digikey link or an Amazon Canada link, it would be greatly appreciated.

    Thanks!
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    Tags: None
    • reformatt
      Badcaps Legend
      • Feb 2020
      • 1549
      • Australia
      #2
      AON6996. Maybe it's the battery FET given it's location. Check your input MOSFET's first - does it use USB-C or barrel jack for charging?

      You should also post motherboard part number and schematic/boardview link if available.

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