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TPS546D24A: Inquiry on usage efficiency

JH Shin
Mastermind 8495 points
Part Number: TPS546D24A

Hello,

My customer has requested accurate efficiency information for the usage conditions below.

Please provide usage efficiency values.

Device Input Voltage Input Current Output Voltage Output Current Efficiency (%) Dissipated Power
(V) (A) (V) (A) 25 ℃ 80 ℃ (W)
TPS546D24A 12 1.28 0.85 16.5 　 　 1.39

Thank you.

JH

  • 0
    TI__Guru 52195 points

     

    For an estimate of the efficiency at a specific operating point, I would recommend using WeBench and matching the design components selection, then using it's efficiency estimator. This is important since efficiency is affected by external component selection, such as input and output capacitors, and more heavily by the selected switching frequency.

    Since your above data provides an Input Voltage and Current along with an output voltage and current, I calculate that efficiency at 91.3%

    For measured efficiency data, the TPS546D24AEVM can be configured for single-phase operation (instructions in the EVM User's Guide) for single phase design testing.

    https://www.ti.com/tool/TPS546D24AEVM