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THVD1520: THVD1520 typ schematic TVS suggestion solution

Jimmy WANG
Genius 4475 points

Part Number: THVD1520
Other Parts Discussed in Thread: TPD2E007, TPD1E10B09,

Hi team,

Does TI has TVS solution like below typ schematic?  CDSOT23-SM712

Thanks!

  • 0
    TI__Guru 74302 points

    Jimmy,

    I'm moving this thread to be supported by our MPD team as they own our ESD protection diode devices. From what I know though, I don't believe we have something directly comparable, but I will let the MPD team respond further.

    Regards,

  • 0
    TI__Genius 12796 points

    Hi Jimmy,

    Thank you for bringing us this opportunity! For this RS-485 transceiver, I would recommend either TPD2E007 or TPD1E10B09. TPD2E007 is a 2 channel bidirectional part with a 13 V Vrwm. TPD1E10B09 is a single channel bidirectional part, however it has a Vrwm of 9 V which is closer to the normal operating voltage of the transceiver. Please let me know if either of these parts work for you.

    Regards,

    Matt Smith

  • 0 in reply to Matt Smith
    Genius 4475 points

    Hi Matt,

    As I know THVD1520 include ESD protection. What different with TPD1E10B09?

    Thanks!

  • 0 in reply to Jimmy WANG
    TI__Genius 12796 points

    Hi Jimmy,

    Excellent question. The internal ESD diodes for THVD1520 are only rated for 8kV according to the IEC 61000-4-2 standard. This means that if an ESD event over 8 kV happens, the internal diodes will most likely burn up. The TPD1E10B09 is rated for 20 kV, therefore making it a more robust protection solution.

    Regards,

    Matt Smith