In the data sheet, supply current is said to be 460mA/VDD11 and 135mA/VDD33, or a total of about 0,95W when running high speed US-connection and no DS connections. When trying the TUSB8040, both on the eval-board and on a newly constructed board it seems that the total consumtion of the hub itself is >3W under the same conditons. It seems to be very much power to do nothing, am I missing something?
Gunnar