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