• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Subscribers 64 subscribers
  • Views 198 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS62933: The thermal shutdown temperature(165℃) of TPS62933 is higher than the junction temperature（150℃）

q h
Intellectual 260 points
Part Number: TPS62933

Tool/software:

HI ti team

           I am checking the data sheet of TPS62933 and I see that the hot shutdown temperature of TPS62033 is 165 ℃, but its highest junction temperature is 150 ℃. If the temperature of the component exceeds the junction temperature but does not reach the thermal shutdown temperature, will it damage the component during use? How can TI prevent this situation from happening? I am checking the datasheet of TPS62933 and I see that the thermal shutdown temperature of TPS62933 is 165 ℃, but its maximum junction temperature is 150 ℃ Will there be any damage to the components during use if the component temperature exceeds the junction temperature but does not reach the thermal shutdown temperature? How does TI prevent this situation from occurring?

  • 0
    TI__Genius 16960 points

    Hi,

    Bella is OoO today, she will give you feedback tomorrow.

    Aurora

  • 0 in reply to Aurora Tie
    Intellectual 260 points

    Hi

         OK ,I will wait fou your answer

  • +1 in reply to q h
    TI__Genius 16960 points

    Hi,

    The junction temperature at shutdown is higher than the absolute maximum value for Tj because after accounting for hysteresis of thermal shutdown (15 deg C), we lie within the recommended operating area range. What this means is that until Tj equals 150 deg C, the device performs as advertised. From 150 - 165, the device won't undergo catastrophic failure but performance will diminish and sustained operation in this rage will negatively impact reliability. At Tj = 165 deg C, the device will undergo thermal shutdown and won't turn on until temperature drops by 30 deg C.

    Hope this can help. Thanks.

    Aurora