Hi, I know there have been several topics created about this, but I was unable to find a clear answer. I often hear that 500ma is the maximum that can be drawn (due to the fuse on the USB VCC line), but looking at the at the datasheet for the Atmega16U2, 200ma is the absolute maximum rating for it…

Maximum Current Draw from Arduino Mega 2560

Grumpy_Mike February 14, 2013, 7:38am 7

It comes out the 200mA limited pin on the 16U2.

ScottAS what makes you think that?