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Who
Daniel Puratich Architecture & Management
Kenny Na EE Designer, Documentation
What
A USB-C PD sink where the output voltage can be selected with resistors
DNP and fitted resistors, should be foolproof 0805s
Intent for requesting 20V 65W when debugging https://uwarg-docs.atlassian.net/wiki/spaces/EL/pages/2701197313/RPi+Interface+Rev+C?atl_f=content-tree setup without the full drone, but should support 12V and 5V as well for testing other boards
Use a USB-C PD chip and the associated required FETs that are required for negotiation
Ideally does not require a microcontroller, due to cost constraints
USB-C input connector / XT30 output connector
don't worry about board area too much but it can be tiny
no buck converter
Resources
https://warg.365.altium.com/designs/3632AC73-B56E-4D37-AF3C-AC41E42112CCUSB-C Sink | Altium 365
https://www.youtube.com/watch?v=W13HNsoHj7A&t=615s
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https://www.ti.com/interface/usb/type-c-and-power-delivery/products.html#1241=PD%20controller& https://www.ti.com/lit/an/slvaf82b/slvaf82b.pdf
TI | ESD and Surge Protection for USB Interfaces
https://www.usb.org/usb-charger-pd
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