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TCA9617B: TCA9511 and TCA9617 series connection

Penn Zhang
Intellectual 1180 points
Part Number: TCA9617B
Other Parts Discussed in Thread: TCA9511A,

Hello,

Could you help confirm if TCA9511 and TCA9617 could series connection?

Thanks.

  • 0
    TI__Mastermind 26806 points

    Penn,

    There are lots of "if's" in your question. It is possible for these to be set up in series, but there are still design considerations.

    For example:

    Are you using a backplane for the hot-swap TCA9511A? The SDAIN and SCLIN sides would need to face the backplane, and the TCA9617B would need to be on the board side - SDAOUT and SCLOUT.

    What would be downstream/upstream from the TCA9617B? Would you need to orient the device in a specific way to handle the buffered low offset?

    What are your bus voltages? Would you need to point the A-side a specific direction, or would your design handle either direction?

    These are some questions to consider in the design. Please let me know if you have any questions for me about this!

    Best,

    Danny

    *Please note that I'm assuming your question is asking specifically about the TCA9511A and the TCA9617B.