What am I possibly missing here?
at 5V between GS and DS, they are theoretically supposed to provide about 500ma,
Pulse test: PW v80 ms duty cycle < or = 1%.
Whereas, putting higher voltages on the gate turns the transistor rather rapidly fully on beginning with about 6,5V.
Do you think a simple level conversion pulling the arduino outputs up to 12V would be a suitable solution?
@Wawa: As stated, I apply 5V to the Drain and Gate, i.e., there is 5V between Gate and Source as well as Drain and Source. I have put the load between the FET Source and GND in order to not have any voltage applied to the load all time.Switching this to the undesired "always on voltage" version works quite well - probably due to significantly higher voltage at the Gate in comparison to the remainder voltage at the Drain.
Ah, that is the point. Thanks for clarification. I simply did not think about that - d'oh ;-).With this regard, the topic may be closed.E.g. I would like to run the cheap moisture sensors. Applying a potential to them all time would lead to increased oxidation of the electrodes - therefore, it would be beneficial having them totally cut off.Still, what do you think about the idea of using the "level shift" for a higher gate voltage to use the N-channel devices anyway?