I have a circuit a programmable timer based on 555 timer as shown in the attached picture. But this circuit drains a lot of current from my 5V supply depending on the value of P1 and the consumption varies as high as 200mA sometimes. Is there something wrong with this circuit or is it common? I even had P1 go bad on one of the boards. The input to this is a TTL signal. I had a 1K pot connected to X6.
thanks
thanks