4 ms·
> The Switch was fine. The fault was entirely in the dock. ... and now those of us who design things with USB-C ports have a very clear market study in "should
by InitialLastName 5y ago
> The Switch was fine. The fault was entirely in the dock.
... and now those of us who design things with USB-C ports have a very clear market study in "should we shell out the $ to protect the CC pins against a short to VBUS?"
- mschuster91 5y agoOut of random interest, how would one go to do that? Zener diodes?
- bloggie 5y agoTI's solution that they offer in the TPD6S300A is to monitor voltage on the CC pins and cut its connection using a fet if an overvoltage condition is detected.
- InitialLastName 5y agoThere were a few specialized IC solutions floating around for this when the max VBUS was at 20V, but now that the 2.1 spec brings it up to almost 50V, it's not clear what the best answer will be.
- Kirby64 5y agoZener diodes will burn out mighty quickly if shorted to an actual supply. Would help for a leakage path, but an actual short you need a real solution. That said, the Switch dock issue is due to poor implementation... not an accidental short.