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Original question:

TAS5825M: Heat Dissipation Issues With Custom Board

TAS5825M: limited power dissipation

Kazuto Tatsumi
Intellectual 2820 points
Part Number: TAS5825M

Hello team,

OTE_THRES of TAS5825M is 160C, but how much is the power dissipation limit determined by package?

Additionally, how about the case that PCB follows 'Layout Guideline' (or EVM)?

Regards,
Kazuto

  • 0
    TI__Mastermind 19080 points

    Hi Tatsumi-san,

    Datasheet chapter 7.4 has the thermal resistance of the TAS5825. You can use the efficiency curve to get the power dissipation, and then estimate the case temperature.

    Power dissipation limit is only reflected by the die temperature.

    Thanks!

    Regards,

    Sam