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About operation temperature of LTC3221

Category: Datasheet/Specs
Product Number: LTC3221

Operation Temperature Range of LTC3221 is define as -40 °C to 85 °C in datasheet.

but Temperature Range is define as -40 to 125°C in the part page.


I  would like to be confirmed the following:

1. What is the difference between Operation temperature Range and Temperature Range?

2. Could the part be useable in an ambient temperature of 110 °C?

  • Hello,

    I do not know if this is a data entry issue on the web page. I am looking into that. The operating temp for this part is -40°C to 85°C. The maximum junction temperature is 125°C. The ambient temperature of the part including what the board warms up to plus the temp rise created from the power dissipation in the part * ΘJA (80°C/W providing good board connection and thermal vias.) should not cause the junction temp to rise above 125°C. The temperature specifications in the datasheet are also for the operating temperature range. We do not advise operating above the operating temperature range. 

  • Hi Marty,

    Thank you for the reply.

    I understood that the operating temperature range and the temperature range are not the same and ambient temperature of the operating environment is guaranteed at the operating temperature.