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Original question:

TS5A623157: switch for 75mhz with AC signal

TMUX1072: RON When VI/O grater than VCC

RJ
Intellectual 2550 points
Part Number: TMUX1072

Hi Team,

I'm looking at the TMUX1072 for an application where the VI/O will be as high as 5.5V while VCC is lower (3.6 or 2.5V). I am hoping that TI has data on this internally. The part appears to support this, but the RON data is only supplied for cases where VI/O is between 0 and VCC (highlighted below).

Maybe a long shot, but do you have any data on RON when VI/O is greater than VCC?

Regards,

RJ

  • 0
    TI__Mastermind 35388 points

    Hey RJ,

    After some digging, I found some old test data that shows results with 5.5V I/O and Vcc = 3.3V. Based on the data here the Ron @ 25C was ~9.75ohms and across temperature up to 12ohms max so it holds close to the datasheet electrical characteristics. Keep in mind though that this is not a full characterization of the chips behavior and is not a guarantee of performance. This was simply a test done across a small batch of devices that can help you get a good feel of what we've seen in testing. Testing this on your own would be a recommended step here as well to ensure that it works for your system with the Vcc range and I/O's you'll be using.  
    Hope this helps.

    Thanks,
    Rami