I need to measure DC current in the range of +/- 250mA and I need some kind of short cut protection.
I use an 1 Ohm shunt and measure the voltage drop with the ADC of an ATtiny24. I have 4 IOs left for free useage.
Can anybody suggest a short cut protection which triggers somewhere in the range of 250 to 500mA and operates in the temperature range of -40Â°C to +125Â°C.
It seems like standard fuses won't work here.
Thanks for any idea!