Compact USB-C PD Sink PCB -- 2

Project Scope Design a PCB that accepts three USB-C power-only inputs and provides one USB-C output. All USB-C connectors will be off-board and connected to the PCB via wires (no USB-C connectors mounted directly on the PCB). Only one charger will be used at a time, but the design must be safe if two inputs are accidentally connected. Input power paths must use ideal-diode MOSFET OR-ing to prevent back-feeding. Output must act as a USB-C PD sink, negotiating 5 V/3 A and 9 V/3 A (up to 27 W) for smartphone charging. No firmware or MCU required. Deliverables I am expecting: • Schematic (PDF + editable format) • BOM with manufacturer part numbers and at least one in-stock source for each line item • Production-ready Gerber and drill files • Brief design notes that highlight the OR-ing scheme and PD negotiation method I will run a DFM check and drop the files straight to my assembler, so clarity and correctness are essential. Technical Requirements USB-C PD sink controller (preferred: STUSB4500 or equivalent). 2-layer PCB, 1.6 mm FR-4, 1 oz copper. Solid ground plane; VBUS traces sized for 3 A. Full protection: TVS diodes, ESD on CC lines. Ultra-low profile design: total PCB + components height ≤ 3 mm (excluding USB-C connectors). Suitable for enclosure in neutral-cure silicone.

ID-ul proiectului: 40121449