USB PD Sourcing: Connectors & GaN Charger ICs
2 resources tagged with "Usb Pd"
USB Power Delivery spans both the USB-C connector that carries it and the GaN charger ICs that drive it, and sourcing the two from China is tightly linked. PD 3.1 Extended Power Range (EPR) pushes up to 240W at 48V, which needs a connector and IC chosen for that envelope — Navitas, Innoscience, and Power Integrations are the common GaN suppliers. The frequent mistake is pairing a high-wattage controller with a connector that cannot carry 5A, or fitting fake GaN ICs that lose the efficiency and thermal advantage.
When you source a USB PD system from China, match the connector current rating, the GaN IC authenticity, and UL 62368-1 safety together. We verify the IC markings against the vendor, check connector pin rating, and test PD negotiation and thermals on samples.
Wiki (2)
FAQ
What is the maximum power for USB PD 3.1?
PD 3.1 EPR reaches 240W (48V/5A). Both the USB-C connector and the GaN charger IC must be rated for that, or the system overheats or fails to negotiate the higher profiles.
How do I avoid counterfeit GaN ICs in a China PD charger?
Verify the IC part marking against the vendor (Navitas, Innoscience, Power Integrations), and confirm efficiency and thermals on samples. Fakes look identical but lose the GaN performance and can fail UL 62368-1.
Why pair connector and IC selection for USB PD?
A 240W controller is useless behind a connector rated for less current. Specify both for the same power envelope so the weakest link is not a hidden bottleneck or a safety risk.
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