Tool/software:
Hello,
I'm designing a USB 2.0 switching circuit using a USB switch. In my case, the switch IC might have VCC = 0V, and I need at least one data path (e.g., port A) to remain connected (pass-through) by default under this condition.
In other words, the absence of VCC is actually my switching condition — if VCC = 0V, I want the USB path to stay active automatically.
My question is:
Does the TS3USB221A allow one data path to remain active (connected) by default when VCC = 0V?
Additionally:
-
Does it go into high-Z or isolate the lines when unpowered?
-
If not suitable, are there any TI-recommended USB switches that support this behavior?
Thanks in advance for your help.
Best regards,
[Abdullah DOGAN]