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Question, i.MX28 internal die temperature

Question asked by Masamichi Miyamoto on Jun 28, 2017
Latest reply on Jul 2, 2017 by Yuri Muhin

Dear team,


I would like to ask about i.MX28 internal temperature measurement.

My customer is now using i.MX28 and they are using internal die temperature sensing which is describing at 38.2.2 in your reference manual(MCIMX28RM, Rev.2).

Sometimes they can read the die temperature that is higher than the junction temperature range which is specified in your datasheet. But they believes that the temperature that is got from the sensing scheme includes some error from the actual die temperature. They think they should add the error value to the read temperature to avoid overheating.

Is it true?

If so, please let me know how they should consider to make decision of the threshold temperature value.