Raspberry Pi USB-C Splitter HAT
Budget: €750 – €1,500 EUR
I want a Raspberry Pi HAT that accepts a single USB-C PD input and breaks it out into three or four downstream USB-C ports that carry both power and data. Each of the three outputs should be able to negotiate its own Power Delivery profile while maintaining a reliable high-speed data link to the Pi (think USB 3 where practical, at least USB 2 if trace lengths make higher speeds unfeasible).
Physical limits are the standard HAT outline, with decent thermal relief so the board can handle a fully-loaded 100W input without throttling. I am open to component choices.
The outputs range from 20V to 5V.
The Pi should get power from the HAT on the I/O pins.
Power over Ethernet as a power input would be great but it is not mandatory. If you can tuck in an PoE++ (60W, or even bt for 90W if possible) front end that feeds the same power rail.
If possible the raspberry Pi should be able to at least monitor if not control the PD sinks and sources so that we know if we are within budget
What I need from you
• Schematic capture with all controller, protection, and level-shifting devices
• Complete PCB layout (Gerber + drill + pick-and-place) that respects the Pi HAT spec
• Annotated BOM with orderable part numbers and projected lead times
• Any embedded code or configuration needed for the PD controllers, ready to compile and flash
• Brief bring-up / test plan so I can replicate your measurements on the first assembled boards
If that sounds doable, let me know how you would tackle the PD negotiation logic and whether you foresee any signal-integrity traps I should watch for.
Also looking for someone who can make custom cables and metal chassis for it in the future.
Physical limits are the standard HAT outline, with decent thermal relief so the board can handle a fully-loaded 100W input without throttling. I am open to component choices.
The outputs range from 20V to 5V.
The Pi should get power from the HAT on the I/O pins.
Power over Ethernet as a power input would be great but it is not mandatory. If you can tuck in an PoE++ (60W, or even bt for 90W if possible) front end that feeds the same power rail.
If possible the raspberry Pi should be able to at least monitor if not control the PD sinks and sources so that we know if we are within budget
What I need from you
• Schematic capture with all controller, protection, and level-shifting devices
• Complete PCB layout (Gerber + drill + pick-and-place) that respects the Pi HAT spec
• Annotated BOM with orderable part numbers and projected lead times
• Any embedded code or configuration needed for the PD controllers, ready to compile and flash
• Brief bring-up / test plan so I can replicate your measurements on the first assembled boards
If that sounds doable, let me know how you would tackle the PD negotiation logic and whether you foresee any signal-integrity traps I should watch for.
Also looking for someone who can make custom cables and metal chassis for it in the future.