03-23-2019, 01:11 PM
(03-23-2019, 11:59 AM)Rinaldi Wrote: Many thanks for the response Tim.
You clarified my doubt well, but eventually created another doubt ...
If idac2 power is the USB standard (0.5A) then it was not the low current that damaged the board, the high current of 1.2A of the RPi USB output may have been the cause to damage the dac ???
I want to buy an Uptone USB Regen to power the dac, but it would not be now, and until then I would use it directly in the RPi, but it seems that I will have to use only in the notebook.
Your device will only use as much current as it needs. The 1.2A current specification for the Pi-3B+ represents the total current availability across all 4 USB ports. For example, if your device is rated at 0.5A max current draw and its the only device connected it could draw up to 0.5A from the 1.2A total leaving 0.7A available to other USB devices.