2
\$\begingroup\$

I got my hands on some USB type-c Male connectors, but when I tore one apart I saw that there is no pin on CC1 or CC2 and thus no pull-up or pull-down. After doing some research I'm not sure I know if this connector can draw power or source power.

What behavior is defined in this instance?

\$\endgroup\$
2
\$\begingroup\$

CC1 and CC2 open means nothing is connected

\$\endgroup\$
  • \$\begingroup\$ as in no power flow either way? \$\endgroup\$ – Legen Diary Jun 1 at 20:19
  • \$\begingroup\$ Most likely not. The device would not see that anything is plugged in. So it would not know what to do, provide power or consume power. \$\endgroup\$ – Justme Jun 1 at 21:16
1
\$\begingroup\$

Unlike the classic USB Type-A-B connectivity (where the USB host always have VBUS on), the default state of VBUS power on Type-C connector is always OFF until the Type-C receptacle sees any (valid) signaling on CC lines. If CC are not connected, it means that nothing is connected, and none of "partner's ports" would output any power. So there will be no way for any power.

\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.