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TMS570LC4357: CPU gets very hot due to unknown cause

Part Number: TMS570LC4357
May 11 I purchased the Hercules Safety MCU Development Kit.
And I used it well until yesterday.
Using the TMS570 today suddenly caused the CPU temperature to rise significantly due to an unknown problem.


I tried to disconnect the pin from the external circuit and see if the problem was resolved, but the temperature was still high.
The mcu device may be damaged.
I heard that TI has a three-month warranty period.
How much does it cost to replace or repair? Is it free replacement possible? I wonder
I want to know the procedure if repair or replacement is possible
We would appreciate it if you could mail to dbtjd1102@naver.com.

 did not join this site when I bought it
If you need a receipt, we will send it to you immediately.
So please contact us as soon as possible.


  • Hello Yoosung,

    If you bought the board from TI Estore, the TI Estore will handle your request.

    If you plug the power supply to the board, are there any LEDs turned on? Did you probe the power supply to MCU? 1.2V for core, and 3.3V for IO.