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SN75DP139: Help to review the schematics

Rannie Zhou
Expert 4840 points
Part Number: SN75DP139


Hi team,

Could you please help to review the schematics? The main platform is ADL-S for HDMI 1.4.

20260126_TI_SN75DP139RGZR for DDIB_HDMI1.4b -SCH.pdf 

BRs,

Rannie

  • 0
    TI__Mastermind 21446 points

    Hi
    Below are the comments:
    1. ESD diode clamping voltage is 9V. This may cause the redriver to die in case of an ESD event because of too high clamping voltage. 


    Best,
    J

  • 0 in reply to J
    TI__Expert 4840 points

    Hi J,

    Could you please help to advise what's the maximum ESD clamping voltage? VCC+0.3V?

    Should customer need to replace the four ESDs of D1 D2 D3 D4? Can you confirm in detail how D1 D2 D3 D4 is replaced? Thanks!

    BRs,

    Rannie

  • 0 in reply to Rannie Zhou
    TI__Mastermind 21446 points

    Hi Rannie,

    I apologize for being unclear. I meant for D2 and D3. It would be ideal to keep clamping voltage as close as possible to Vcc+0.3V to prevent our device dying and HDMI to ideally work even when there is an ESD event.

    Best,
    J