Voltage Range 5V +/-

[Fohnbit]

Hello,

which Range is supported at the USB and power jack input?

5V or cource ... but in which range before the board will be damaged?

4.5 - 5.5V ?

Thank you!

[Graham]

The USB specification requires that it will operate between 4.5 and 5.5 Volts.

For the 5 Volt power jack, the PMIC will operate between 4.5 and 5.5 Volts.

BUT, the PMIC will shut down and go into self protection above or below

those Voltages.  So, in order to allow for some noise and Voltage spikes,

so that you have margin against the shut down points, I recommend that

you operate the Power Jack and USB between 4.75 and 5.25 Volts.

Physical damage will not occur until at least 7 Volts, but it will self protect

(turn itself off) starting at 5.50 Volts

If you question has to do with running the BBB from batteries, I suggest that

you have an external boost/buck converter, so that the power to the 

BBB stays at a safe and comfortable 4.75 to 5.25 Volts, no matter what the

battery is doing.

--- Graham

==

[Fohnbit]

Hello Graham,

thank you!