Sebi said:
Yes, when the output +5V, the device OFF. Output zero volt: device is ON. The load between drain and GND.
So my MCU would have to send the output high at all times to keep the MOSFET from turning on? Hmm, so in the event that the MCU (Atmel in this case) fails the MOSFET goes straight through?
I'm sort of confused as with the N-channel MOSFET it would stay off when the gate was off, which seems kind of logical to me. The pfet is inverted even in this case?
Also, shouldn't it be relative to the source voltage (12V in my case)?