Part Number: TUSB7320
Hello Everyone,
we've got a power issue with our TUSB7320. Its works, but it gets quite hot, even if nothing is connected. From the thread (https://e2e.ti.com/support/interface/f/138/p/365370/2319299?tisearch=e2e-sitesearch&keymatch=TUSB7320#2319299) I took the idea to observe the SSTXP/M signals. It could mean the device is in "compliant mode". I did that and here's the result is below. On USB1 there's no activity, on USB2 there a pulses with a frequency of about 186Hz.
Furthermore I observed the Data-lines of USB2 after that and they showed no activity.
Below is another screenshot that shows the pulse-form of those seen periodically in the upper image:
Can you tell us where to look next?
best regards
Maximilian Welsch
