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I want to build the cricuit like on the image below: Circuit Image

  • V1 - Is a 14S LiPo battery(there would be fuse in real life between positive battery terminal and "BATTERY+"
  • M1 - PMOS acting as a load switch
  • LOAD - Place where the load should be(DC Motor controller)
  • CTRL - pin turning the LOAD on/off

Q. What would happen if by mistake higher voltage than the battery would be connected where the LOAD is? I assume M1 Body diode would conduct causing overheating and potentialy burn the M1.

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  • \$\begingroup\$ And the other problem is that your PMOS needs a VGSmax of -48V \$\endgroup\$
    – RoyC
    Commented Dec 16, 2020 at 19:20
  • \$\begingroup\$ Sure, the Zener diode should be placed! \$\endgroup\$
    – Bip
    Commented Dec 17, 2020 at 11:11

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I assume M1 Body diode would conduct causing overheating and potentially burn the M1

enter image description here

Yes it could.

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