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Aug 18, 2023 at 1:48 comment added Simon Fitch @MarcoBresson You're welcome! I also debated with myself about D1, even if it's necessary at all. 3.6V would reduce current drawn from the GPIO by a milliamp or so, and would still offer protection, so yes, 3.6V seems OK
Aug 17, 2023 at 15:41 comment added Marco Bresson Thank you also for the proposed circuit with Q1 ! I han't thought of it ! Really thank you for your time, I really appreciate it.
Aug 17, 2023 at 15:40 comment added Marco Bresson For D1, should I pick 3.6V since I think the GPIO would be safe between 3.3 and 3.6?
Aug 17, 2023 at 15:38 vote accept Marco Bresson
Aug 17, 2023 at 15:38 comment added Marco Bresson Thank you so much for your amazingly detailed answer ! I don't understand how I missed the graph of the datasheet, that will be a lesson for me. If I read the datasheet's figure 4 correctly, that would give me 5A for 20V, which is perfect for what I want (thanks for bringing this figure to my attention).
Aug 15, 2023 at 4:45 history edited Simon Fitch CC BY-SA 4.0
Thermal issues
Aug 15, 2023 at 4:30 history edited Simon Fitch CC BY-SA 4.0
edited body
Aug 15, 2023 at 3:48 history edited Simon Fitch CC BY-SA 4.0
added 50 characters in body
Aug 15, 2023 at 3:38 history edited Simon Fitch CC BY-SA 4.0
High side switch
Aug 15, 2023 at 2:50 history edited Simon Fitch CC BY-SA 4.0
added 101 characters in body
Aug 15, 2023 at 2:42 history edited Simon Fitch CC BY-SA 4.0
Address speed
Aug 15, 2023 at 2:13 history answered Simon Fitch CC BY-SA 4.0