SLAA937 June   2020 TAS2110 , TAS2562 , TAS2563 , TAS2564

 

  1.   Advantages of Thermal Foldback on SmartAmps
    1.     Trademarks
    2. 1 Advantages of Thermal Foldback Feature
    3. 2 Temperature Monitor
    4. 3 Thermal Foldback Configuration
      1. 3.1 Temperature Threshold
      2. 3.2 Thermal Max Attenuation
      3. 3.3 Thermal Slope
      4. 3.4 Hold Time
      5. 3.5 Release Rate
    5. 4 Thermal Foldback Performance
      1. 4.1 Device Configuration
      2. 4.2 Thermal Foldback Disabled
        1. 4.2.1 Initial Temperature
        2. 4.2.2 Final Temperature
      3. 4.3 Thermal Foldback Enabled
        1. 4.3.1 Final Temperature
    6. 5 Conclusions

4.1 Device Configuration

This section shows how the device is configured for both thermal foldback disabled and enabled tests.

Initial device configuration for thermal foldback disabled sets the device in ROM mode and -4 dB attenuation on the volume control. This adjustment in gain allows to get an output signal without clipping as ROM mode does not control excursion, clipping or temperature on the speaker.

Thermal foldack enable configuration is the same but only adding settings from Figure 2 please note that at 105°C the attenuation is around -2.3 dB

Thermal-Foldback-Control-Panel-Enabled.jpgFigure 2. Thermal Foldback Settings