• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 56 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

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.

LM5143: Parallel devices distance

Darren DeBattista1
Intellectual 525 points
Part Number: LM5143

Tool/software:

Hi, 

I am considering the use of the LM5143 with interleaved operation. In my application, there is the possibility to have two LM5143 on two seperate PCBs which needs to be connected in parallel for 4-phase interleaved operation. Looking at the datasheet on page 31, I see that all the COMPx and SSx pins needs to be connected together. Since I will have those devices on two different PCBs which would connect their SYNC pins using wires, would it be so much of an issue if I also short the COMPx and SSx pins using wires from one board to the other?

Thanks

  • 0
    TI__Genius 11506 points

    Hi Darren

    Darren DeBattista1 said:
    I also short the COMPx and SSx pins using wires from one board to the other?

    As these are analog signal pins, they are susceptible to noise. I would recommend keeping wire as short possible and away from switching path. Additionally, take individual signal along with GND wire for each and make twisted pair connection. For eg.

    1. SS-AGND
    2. COMP-AGND   

    Hope this answers your question

    Thank you

    Regards

    Onkar Bhakare