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TLIN1028-Q1: Schematic review

Ivy Jin
Expert 5845 points

Part Number: TLIN1028-Q1

Hi team,

My customer is evaluating TLIN10283DRQ1 in their project. Below is their schematic, could you please help review and give some comments?

Thanks!

Regards,

Ivy

  • 0
    TI__Expert 5845 points

    Hi team,

    Do you have any comments? Thank you!

    Regards,

    Ivy

  • +1
    TI__Guru 53535 points

    Hi Ivy,

    Sorry for the delay.

    This schematic looks good. I only have a few questions that may lead to a small change. See my notes below.

    • Decoupling capacitors on Vsup and Vcc.
      • 100nF capacitor is recommended on Vsup input (C20? or C29?).
      • Vsup filter circuit looks good otherwise.
    • 220pF on LIN bus with no external pull-up is appropriate for responder node - no issue. 
    • ESD protection on LIN and Vsup lines with ESD2CAN is appropropriate. 
      • Consider ESD1LIN if smaller form factor 1-channel ESD is desired.
    • Series and biasing  resistors on digital lines look good - no issue. 

    Regards,
    Eric Schott