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Gjain.1
Gjain.1
Associate II
Oct 20, 2021 4:28 AM UTC
Solved

Why 2 P-channels MOSFET have been used In Vbus_EN_SRC? Can we use just one?

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    Peter BENSCH
    Peter BENSCHBest answer
    ST Technical Moderator
    Oct 20, 2021 9:11 AM UTC

    The two MOSFETs are important to be able to control the current flow in both directions. It is entirely possible that there is a power source on both sides, so that with only one MOSFET the current can flow through the parasitic body diode of the switched-off MOSFET.

    Good luck!

    If the problem is resolved, please mark this topic as answered by selecting Select as best. This will help other users find that answer faster.

    /Peter

    In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
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    1 reply

    Peter BENSCH
    Peter BENSCHBest answer
    ST Technical Moderator
    Oct 20, 2021 9:11 AM UTC

    The two MOSFETs are important to be able to control the current flow in both directions. It is entirely possible that there is a power source on both sides, so that with only one MOSFET the current can flow through the parasitic body diode of the switched-off MOSFET.

    Good luck!

    If the problem is resolved, please mark this topic as answered by selecting Select as best. This will help other users find that answer faster.

    /Peter

    In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
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