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TPS23881: Can TPS23881 replace TPS23880 without SW effort

Anson Ma
Prodigy 30 points
Part Number: TPS23881
Other Parts Discussed in Thread: TPS23880,

Hi,

1. Now I use TPS23880 and MCU for the project, can I use TPS23881 to replace it and remove MCU?

2. The application is PSE injector, can TPS23881 work in auto mode without MCU?

Thank you

  • 0
    TI__Expert 3700 points

    Hi, 

    Thank you for your question. The TPS23881 can be used to replace the TPS23880 and this is recommended. Here are the main differences between the two devices as can be found Table 1 of the TPS23881 datasheet:

    As shown, the TPS23881 does support resistor selectable autonomous mode which eliminates the need for an MCU. This mode is not supported in the TPS23880.

    Please let me know if you have any other questions and thank you for considering Texas Instruments PoE devices. 

    Best Regards,

    Brett Colteaux