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Hello,
I'm powering up a new board using the TUSB2036 hub with three TPS2044BDR power distribution switches.
My problem is that all 3 of the PWRON signals stay high, disabling the TPS2044BDR devices.
I've found that the OC overcurrent signals from the TPS2044BDR devices are always low, seeming to indicate an overcurrent conditions. However, I don't have anything plugged into the USB connectors so I can't see how an overcurrent condition could be occurring.
Some other forum posts reference this problem, like this: https://e2e.ti.com/support/interface/digital_interface/f/130/p/530702/1934206#1934206 but the answers don't seem to apply to my setup.
What things should I check?
Thanks
edit: having trouble posting a PDF of the schematic, it won't display properly. Here is a parital JPEG:
