TPA6130A2 热保护

In the datasheet of TPA6130A2,

TA Operating free-air temperature range is  –40°C to 85°C

TJ Operating junction temperature range is  –40°C to 125°C

And in page 6 there are two parameters of Thermal shutdown, 1. Threshold 180 °C   2. Hysteresis 35 °C

这2个参数代表什么含义？

Thermal   A 1 on this bit indicates a thermal shutdown was initiated by the hardware. When the temperature

drops to safe levels, the device will start to operate again, regardless of bit status. This bit is

clear-on-read.

当温度降到正常值，IC会重新启动，（不管寄存器的值）；

温度降下来了，寄存器的值是否会自动变化？

该器件工作时的环境温度范围是–40°C to 85°C；对应的结温范围是–40°C to 125°C；

如果温度超过180°C，则会热保护；其迟滞是35°C（即当温度回落更低时解除过温保护，防止出现反复启停）

热保护的状态位不会自动清除，除非MCU读取状态后才自动清除。实际上，只要温度降下来器件会自动重启。