DLPC6401: The temperature issue for DLPC6401

Part Number: DLPC6401

Tool/software:

Hi,

We use the DLPC6401ZFF in our project ,and now, we heat up to 60-70 degrees. The indicator light turns red the fourth time the machine is turned on and off, which is a problem.

and we change the new device in the board, the temperature we heat up tp 60-70 degress is OK for the 10 times turned on and off,

Can you help to advise why it happen for temperature issue, thanks.