SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
There is also a comparator block responsible for the thermal shutdown (TSHUT) function of the CTRL_MODULE_CORE thermal management logic. This comparator block is also composed of two comparators. One dedicated to low TSHUT threshold and the other one to high TSHUT threshold. Because of the five temperature sensors there are also five comparator blocks. The comparator outputs for the low and high TSHUT thresholds of each comparator block are connected to a logic which then generates a single TSHUT signal. All five TSHUT signals are tied to the PRCM and used as warm reset sources. For details, see Figure 18-5.
The values of the five low and high TSHUT thresholds are fixed and can be neither overridden nor read by software. The value for the high TSHUT threshold is 123°C (assuming ±2°C temperature sensor accuracy), and the low TSHUT threshold is 105°C.
When the high TSHUT threshold is reached, the TSHUT output is activated. To deactivate each TSHUT output, the temperature must go below the value of each low TSHUT threshold.
Each of the five TSHUT signals is used as an overheat protection.
Figure 18-7 shows the behavior of the TSHUT logic.