Hello all,
I’m just trying to understand Mosfets, but one thing I do not quite understand. I hope maybe someone here can help me. The ADC of the Dev Board, to measure the voltage, is connected to an AO7801 p-Mosfet. But the Lipo voltage could be 4.2V while the gate is switched with 3.3v. So the mosfet does not close at this point? Am I missing something? According to the data sheet of the AO7801 the VGS(th) is starting at -0.5v. So the GPIO must be able to output at least 3.7V.