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TAS5825M: Details regarding the parameters of the thermal foldback feature.

Toshihiro Segawa
Prodigy 15 points
Part Number: TAS5825M


Thermal foldback has the following two parameters. Could you provide a detailed explanation for each?

・Temperature scale (dB)

・Temperature time constants (ms)

  • 0
    TI__Genius 15260 points

    Hello Toshiro

    • Temperature Scale: When the temperature exceeds OTW, a threshold of (defined AGL threshold + Temp_Scale) will be applied to AGL threshold. Then smaller one of the User’s set AGL threshold and (set AGL threshold + Temp_Scale) will be applied as final AGL threshold to limit the output power. So if you feel your system is at risk of OTSD you can add a more aggressive temperature scale/time constant/attack to avoid OTSD
    • Temperature time constant: this is the time window of the smoothing done by the Alpha filter on the real-time temperature data

    best regards,
    Luis