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TXB0104-Q1: The load capacitance

Tomoaki Yoshida91
Genius 5255 points
Part Number: TXB0104-Q1

Hi team,

It is written as this device is designed to drive capacitive loads up to 70pF.

I want to know what happens when it is unintentionally over 70pF.

Does it mean that the characteristics of the data sheet can not be satisfied?

Can I think the 70pF as the guaranteed value?

Best regards,

Tomoaki Yoshida

  • 0
    TI__Guru* 96591 points
    Hi Yoshida-san,
    70pF is more of a recommended maximum.

    The TXB0104-Q1 uses 4kohm resistors to limit the output current of the device. It is best to minimize capacitance with the TXB0104-Q1 -- a 5pF load is ideal. The larger the capacitive load, the worse the signal integrity will be.

    If you must drive a line with 70pF load, I would recommend using a line driver, not a TXB translator.