TMUXHS221: Device selection

Kailun Liu

Expert 3043 points

Part Number: TMUXHS221
Other Parts Discussed in Thread: TMUX1072, TMUX1574

Tool/software:

Hi team,

Can you suggest a device in notebook docking hub which could support:

1. USB2.0 1:2 expand.

2. 5V/3.3V/1.8V

3. Overcurrent protection

Thanks!

1 month ago

0 Rami Mooti1 1 month ago

TI__Mastermind 35218 points

Hi Kailun,

How much current are you anticipating? We don't currently have a device that can do overcurrent protection but maybe we can find something that can handle the current requirements

Thanks,
Rami

0 Kailun Liu 1 month ago in reply to Rami Mooti1

TI__Expert 3043 points

Thanks Rami,

I am checking with customer about item3. Does TMUXHS221 meet item1&2?

0 Rami Mooti1 1 month ago in reply to Kailun Liu

TI__Mastermind 35218 points

Hi Kailun,

Partially. The device support only a voltage of 3-3.6V for the supply. It can handle then anything below so we can still support 1.8V signals.
5V will not be supported.

For 5V we could try the TMUX1072, which has overvoltage protection. Or we could do TMUX1574 (4 channel 2:1 device)

-Rami

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TMUXHS221: Device selection