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TXS0102 for I2C isolation

Justin Thomas
Prodigy 100 points
Other Parts Discussed in Thread: TXS0102

We are using TXS0102 for I2C isolation. VCCA and VCCB are 3.3V.

If VCCA is greater than VCCB (due to regulator tolerance drop) what will happen?

Whether device will stop or any issues in communication voltage levels?

Thanks

RajanV

  • 0
    TI__Genius 9860 points

    Hi RajanV,

    I am moving to the Voltage Translation forum for support.

    -Ryan

  • 0
    TI__Expert 4705 points

    Hi, RajanV

    Could you please let me know the range for the VCCA and VCCB?

    Actually, if both VCCA and VCCB are at 3.3V power supply, if VccB less than VccA within 0.4V , should not have the influence for the function. it will work well.

    The only influence will be a little more current drawn for the VccA. will not much.  the less different between VccA and VccB, the less influence for the current of the VccA.

     

    BR
    Junjie