• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 20 subscribers
  • Views 566 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TXB0104 Drive Strength

Fahd Albinali
Intellectual 490 points
Other Parts Discussed in Thread: TXB0104, TXS0104E

I am using TXB0104 to translate between 3.3v and 1.8v the driving system has max output drive of 1mA when I prototyped, everything seems to be fine. I am concerned though about the following statement from the TXB0104 datasheet 

TXB0104 Data Sheet - “For proper operation, the device driving the data I/Os of

the TXB0104 must have a drive strength of at least ±2 mA."

Any advice on what are the implications? Also, are there any other options that TI recommends? Thanks.

  • 0
    TI__Genius 16510 points
    Hello Fahd,

    Thanks for the question.

    The main issues that could result by not having the full 2 mA drive strength, is that the device may not recognize a low or a high. THere is a series 4k resistor that must be overcome by the device connected to the TXB device. If it doesn't have a strong enough drive, then the TXB will not recognize the input as a high or low.

    For weak drive strength, I would recommend taking a look at the TXS0104E instead. You can see some of the differences highlighted in this post: e2e.ti.com/.../321307