Comment on Driving a logic level MOSFET with an ATtiny 3224
jeinzi@discuss.tchncs.de 3 days ago
I don’t know how serious your project is and how much reliability and predictability you need; but regarding
I would need a 2-300ohm resistor in series to protect the microcontroller
I will just say: I have yet to kill an AVR.
I haven’t used any gate drivers yet, but I remember an introductory video about MOSFET control that helped me a lot, and at about 7:40 he shows his go-to setup.
And again, I don’t know your requirements, but my default logic level MOSFET is the SI2302. It’s available from a bunch of different manufacturers, has a threshold voltage less than 1V and can conduct several amps continuously.
I’m hoping to end up with a pcb that has the features of an obsolete ecig that my spouse and I prefer. I’ve probably purchased a dozen of them over the years. The switches always fail.
Given the politcal climate towards ecigs (What about the children???), my particular harm reduction method continues to become more difficult to source. So, I’m just going to future proof things and build my own. I doubt the design will be worth any money so I’ll probably open source it if it works.
So pretty serious about durablility, it would be a tool for daily use. I plan for switches to be on a daughter board so I can just change them out.
I’ll be checking out the video this evening.
Thanks!