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TPS22976: Rise Time, VIN=VBIAS=2.5V / 3.3V vs CT

Tamio Yokokura
Expert 3560 points
Part Number: TPS22976
Other Parts Discussed in Thread: TPS22975

Can you share the Rise Time data of VIN=VBIAS=2.5V or 3.3V vs CT?

Thanks

Tamio

  • 0
    TI__Genius 13470 points

    Hi Tamio,

    Thank you for reaching out to the E2E forum!

    Although we don't have the data for VBIAS=VIN=3.3V I was able to find data for VBIAS=VIN=2.5V for the following CT capacitors.

    CT (pF) Rise time (uS)
    0 225
    220 647
    470 1108
    1000 2116
    2200 4392
    4700 8998

    The accuracy of these values are not guaranteed by TI since they could be affected by the load resistance and process variation during manufacturing. These values can be used for design purposes. Customers will still need to test their design implementation to confirm system functionality.

    Regards,

    Andy Robles

  • 0 in reply to Andy Robles
    TI__Expert 3560 points

    Hi, Andy,

    Thank you for supporting.

    Your data was helpful for me to create TPS22975/22976 Turn-on time calculator.

    Thanks

    Tamio