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TPA6138A2: How to describe output impedance

Hideki Hayashi1
Expert 7200 points
Part Number: TPA6138A2

Hi team,

I learn it from E2E, output impedance is defined by Po plot. What is the conversion equation from output power to output impedance?

Best regards,

Hideki

  • 0
    TI__Guru** 100965 points

    Hi Hayashi-san,

    To know the output impedance you would need to set a known load, then analyze ratio of change in output voltage compared to a change in load current.
    Perhaps Spice model can be used to get an estimated value.

    Best regards,
    -Ivan Salazar
    Applications Engineer