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ESD Protection for battery pack

Jared Becker
Genius 11865 points

Other Parts Discussed in Thread: TPD1E10B09

Hi team,

I discovered a great resource for the correct ESD diodes to use with the proper interface: 

However, this sheet does not provide a recommendation for ESD protection for a battery pack that is being plugged into a charger. Is there a recommendation for that application?

Thank you,

Jared

  • 0
    TI__Expert 3500 points

    Jared-

    Thanks for your question! We don't specifically highlight that application because it depends heavily on the specifics of the application. If you could answer the following questions I'd be happy to offer guidance:

    • What are the max voltage and current?
    • Is there any need for overvoltage or overcurrent protection, or just ESD protection?
    • Will there be bidirectional current flow on the line or just unidirectional?

    Let me know and I'll recommend you a solution!

    Thanks,

    Alec

  • 0 in reply to Alec Forbes
    TI__Genius 11865 points

    Hi Alec,

    What are the max voltage and current?

    9V9 @ up to 30A

    Is there any need for overvoltage or overcurrent protection, or just ESD protection?

    How about an option for both overvoltage/overcurrent + ESD and ESD only

    Will there be bidirectional current flow on the line or just unidirectional?

    The battery will need to be recharged, so bidirectional

    Thank you!

    Jared

  • 0 in reply to Jared Becker
    TI__Expert 3500 points

    Hey Jared-

    We can provide ESD protection for your power bus, but we unfortunately don't have any devices that will provide overcurrent and overvoltage protection that are rated to 30A DC.

    My recommendation would be to use the TPD1E10B09. This TVS diode has minimal leakage currents and a reverse working voltage of 9V which will be good for your rail, and will break down just above that during an ESD event to clamp the voltage and protect your downstream system. Hopefully that will be good for your system, please let me know if you have any follow up questions!

    Thanks,
    Alec