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TPD2E009: To support hot plug feature in high speed differential lines with intel Cyclone V device

Karthik B
Expert 1310 points
Part Number: TPD2E009

Hi team,


We want to provide an hot plug feature in our board for which we are looking for TVS diode and found TPD2E009 part. 

Since intel Cyclone V series transceivers don't support hotplug feature, we are planning to protect the FPGA by making a small adaptor card by providing the ESD protection at the connector side, I have attached a block diagram of our requirement FYR.

Let me now whether TPD2E009 part can handle the surges, ESD and also can I use it for Hotplug feature?

There is only data Tx+/- & Rx+/- lines will be hotpluged no power is involved.

Please let me know if there are any concerns or any better alternate options with similar formfactor, to support Hotplug feature?

Regards,
KarthikHotplug-1.pptx

  • 0
    TI__Genius 13760 points

    Hi Karthik,

    Welcome to E2E!

    In order to find out if the device can provide protection for the hot-plug event we would need a better understanding of the transient event. The TPD2E009 is tested against the IEC 61000-4-2 ESD protection standard being able to withstand +/- 8kV, and rated for up to 5A against the IEC 61000-4-5 surge rating standard. The device also has a clamping voltage of 8V with a 1A transient current. Closer to the 5A rating the clamping voltage will be higher. If the transients the system will encounter are within these standards, and the clamping voltage of the device is at good level to protect the transceiver then the device may be used.

    To learn more about the tests for TI's protection devices please refer the following application report: IEC 61000-4-x Tests for TI’s Protection Devices

    Best regards,

    Andy Robles