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TPD2E007: I confuse ESD protection and surge protection.

Inho Jeon
Expert 1452 points
Part Number: TPD2E007
Other Parts Discussed in Thread: TVS1401

Dear Ti,

Below this schematics is connector of RS485.RS422,RS232.

Fire_Connector_SCH.pdf

422 connector.pdf

That schematics applied ESD & surge protection.

That protection parts refer to below this application note. 

For Mass production, I search replace ESD & surge protection part.

TPD2E007 is for RS485.RS422,RS232 like below this application schematics.

  

Other companies' reference circuit diagrams are applied as ESD parts and surge parts, but TI is a bit confusing because it was applied as one part.

So, I have a question.

Is TPD2E007 for just ESD protector? or it is ESD and Surge protector? 

Please, reply for my question.

Thank you.

Best Regards,

Inho Jeon

  • +1
    TI__Expert 8486 points

    Hello Inho,

    TPD2E007 has both ESD and surge protection capabilities. If you look at the datasheet, you will see two standards listed: IEC 61000-4-2 (ESD) and IEC 61000-4-5 (surge). For surge, this device is rated to withstand up to 4.5 A of surge current, per IEC 61000-4-5. You can see the surge waveform in figure 7 below: 

    However, if you need a device with a higher surge rating, I would recommend TVS1401.

    Please let me know if I need to clarify anything.

    Regards,

    Matt Smith