ESC as powersupply for Axon

[An3]

Hi. I'm temporary using an ESC (HPI EN-1) as powersupply for Axon. The datasheet for Axon says that the absolute minimum required voltage for Axon is 5,35V. The ESC supplies my Axon with only 5 volt.  Axon works perfectly fine. How is that possible? 

[Razor Concepts]

The regulator is running out of spec, so basically it is delivering less than 5 volts to the mega640. The mega640 can actually run at slightly lower than 5 volts, so it still works.

I usually run the Axon at ~4.8v (4 cell nicd battery) so the axon gets even less than that, and it still works. Its just that it won't be running at the voltage it is designed for.

[An3]

thanx for answer From the ATmega640 datasheet: ATmega640: 0 - 16 MHz @ 4.5 - 5.5V. The "datasheet" for Axon could be more spesific

[chelmi]

thanx for answer From the ATmega640 datasheet: ATmega640: 0 - 16 MHz @ 4.5 - 5.5V. The "datasheet" for Axon could be more spesific

It is already very specific. It says 5,35V minimum because a lower value is not enough for the regulator to work. It could work but this is definitely not recommended since the regulator does not regulate anything anymore.

[Admin]

Are you sure the ESC is actually outputting 5V? (ie did you measure it)

Once you go below spec of the regulator, the voltage on the Axon will no longer be properly regulated. That means the clock timing isn't guaranteed, the ADC will not give as reliable of values, and mcu reset becomes very likely.