I am working on a project in which I have very little power. Every mA is important.
So I did some measurements checking how much power the ATmega328P Microcontroller needs. I accomplished this by building it up as standalone microcontroller and measuring a voltage drop at a 1Ohm shunt in the 5V supply line.
The Chip needed 15mA of Current at 5V. This was a normal program, nothing fancy, just switching some outputs, using the three timers. While measuring, no outputs were connected.
Yesterday my voltageregulator broke so the ATmega got 15V supplyvoltage. I dont know for how long, but after I changed the voltageregulator everything was still running as usual, so it doesnt seem its broken.
But after that I checked power consumption again (same configuration as last time )and now the ATmega draws 30mA current.
Is it possibly that the Chip still works as expected but drwas much more current after it was overloaded like I my case?
Looking forward to your replies and many thanks in advance! -Thomas