So I haven't really done anything using a proper battery operated design, thus I'm wildly ignorant in regard to the proper use of the BOD. The question I have for you guys is how close can the operating voltage be to the BOD level without risking extraneous resets? I'm currently playing with an attiny13a, and I see that the 1.8V BOD level ranges from 1.7-2.0V between chips, and there's 50mV of hysteresis. Would that mean I'm fine operating at 2.1V using a plain old linear regulator, or would I be asking for pain and suffering? How much wiggle room should I allow myself? Might it be possible to go as low as 2.0V if I can guarantee the voltage is allowed to rise past 2.05V when the MCU is in reset, or would that just be madness? I realize this may be splitting hairs to try to go that low, but I figure as long as I'm already asking the question, let's go nuts!
Joined: Fri. Jun 26, 2015
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Location: Camarillo, California