• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 63 subscribers
  • Views 87 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

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.

BQ24072T: operational temperature

Pawel Kleszczewski
Prodigy 10 points
Part Number: BQ24072T

Hi,
what is operational temperature of BQ24072T? In datasheet there is information that absolute maximum temperature is -40 to 150 and operational is 0 to 125, the diffrence is quite big, isnt that mistake?
The information in table, during part search, is that operational temperature is -40 to 125, whats more BQ24072R, which is almost same charger, has operational temperature -40 to 125. So which values are valid? 

Thanks in advance,
Pawel

  • 0
    TI__Mastermind 21675 points

    Hi Pawel, 

    For the BQ24072T the absolute temperature range listed of -40 C to 150 C indicates if the device is operated outside of said range the IC may get permanent damage. When the datasheet states the operational range is up to 125 C this is because of the thermal regulation feature. Thermal regulation monitors the die temperature and stops normal operation  by reducing charge current when the temperature rises above 125 C and shuts down the device if temperature reaches 150 C.

    Both devices you mention have been tested to operate down to -40 C, but the minimum temperature a Li-Ion battery should be charged at is 0 C. These reasons are why the recommended operational temperature range is 0 C to 125 C, but the absolute maximum range in -40 C to 150 C. 

    Regards,

    Garrett