Other Parts Discussed in Thread: TPD6S300
Hello,
I am using the TPS65987D for a docking station circuit which:
- Can provide Power (20V 65W; Source-Mode) over USB-C to a Tablet or Laptop PC.
- can be powered from the Laptop in passive mode when the docking is not self-powered (5V/1A Sink mode).
- in both modes the docking should provide USB-ports (only USB20) for external devices (Laptop is the Host) like USB- mass-storage, keyboard, mouse.
My custom circuit and the firmware configured with the Application Customization Tool is working so far.
Powering and charging the Tablet/Laptop is working well.
In passive mode (without extern power) the Tablet/Laptop powers the docking and the USB is working well in this mode.
But in Source mode (the docking is powering the Laptop/Tablet) USB is not working.
I tried very much with the settings in the Firmware but nothing is working. Do you have an idea what goes wrong.
The project file is attached.
The USB-port is routed directly from USB-C port over a TPD6S300 to the USB-Hub. The TPS65987D is not connected to the USB-lines.
Regards Markus