Post Go back to editing

Thermal shutdown on ADuC845

Thread Summary

The user experiences a 'partial hold' state in the ADuC 845 when the internal temperature sensor reads 127°C, affecting ADC and external interrupt functionality. The final answer confirms there is no thermal shutdown feature in the ADuC 845, and the issue may be due to the device failing at temperatures significantly above 125°C.
AI Generated Content

Hi,

I was looking into ADuC 845 manual but I do not found anything about it.

In my application because of system inertia, temperature can reach 128 to 129 degC for short period of time.

I am using ADuC 845 internal temp sensor, whenever reading is 127 degC (maximum for this sensor), ADuC itself is going into same how "partial hold", (DAC is working, PWM also, but ADC and external interrupt not)as soon as reading is 126 everything is back to order. This "freezing" happend regardles I am reading data from  internal temp sensor or not.

Can I do something  to disable this "Thermal shutdown" option?

Regards

Slawek

Before You Switch


Switching languages will make ADI Explorer unavailable. Resume your session by switching back to English and reopening ADI Explorer.