Had a few issues with a high side using darlingtons etc - what would be simplist 3v3 logic driven hi side (12V output) driver (I'm thinming fet) that can handle 1-2A for running a solenoid, as a switch - frquncy is VERy low like on for 10 mins, off for 5 etc. tia
Use a P channel MOSFET like this: -
Taken from my answer to this Q and A
You have multiple options:
- P channel fet.
- N channel fet with gate driver.
- PNP transistor.
- NPN transistor with base driver.
Or, a you can get a smart high side power switch. Eg: ITS4142N.
Which basically is an N channel fet with booster circuit or even diagnostics and sensing in one package.