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TXS0108E: TXS0108E change 3.3v to 1.8v

Frank Xiao
Genius 12055 points
Part Number: TXS0108E

Hi team,

My customer is using the TXS0108E now. They have finished the layout. But the datasheet says the VCCA <VCCB. Can we use the device with VCCA(3.3V), VCCA(1.8v)? Thanks.

BR

Frank 

  • 0
    Guru 244350 points
    The datasheet says so not just to annoy users, but for technical reasons.
    As far as I can see, if VCCB < VCCA, a current will flow through the pass transistor's body diode, and the two pull-up resistors will form a voltage divider.