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[FAQ] Can the TPS2388 support "Perpetual POE" and "Fast POE?"

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Replies: 2

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Part Number: TPS2388

Dear Team,

Can TPS2388 support below functions?

  1. Perpetual POE
  2. Fast POE

Thanks.

BR

Kevin

  • Hi Kevin,

    The TPS2388 can support Perpetual PoE (sometimes called Persistent PoE) and Fast PoE at a system design level.

    For Perpetual PoE, if the switch is being updated from the host controller side, the MCU and PSE controller can continue to power and control each port based on the setting before the host controller is updated.

    If the switch is being updated on the MCU side, it is not required but it is recommended to do a power on reset of the PSE controller.

    For Fast PoE, as long as the state/setting on each port is saved in memory. At restart, the PSE system can be turned ON to the same setting it was set to before the power loss.

  • In reply to Darwin Fernandez:

    Dear Darwin,

    Thanks for the information!
    BR
    Keivn

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