Posted on September 28, 2017 at 12:35 I did not have the esd protection chip on this board at all. What fixed it for me was enabling the battery charge detection circuit. Se my answer on stack overflow. https://electronics.stackexchange.com/q...
Posted on September 22, 2017 at 19:50I found that when USB is in low power the DM pin floats and that caused the around 200uA power draw. Pulling DM down removes the draw. Even a 1M pull down helps.I'm trying to find a way to handle this in software...
