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BQ40Z50-R2: Question for charging current degradation

Chih wei Huang
Prodigy 50 points
Part Number: BQ40Z50-R2

Hi All :

I have a question about bq40z50-r2 as below.

The new function of bq40z50-r2 has charging current degradation by cycle count /SOH.

Could charging current degradation be set to only active for temperature range(15~45 deg C) ?

 

Example :

1. When cycle count lower than 50 and charge current set to 0.7C during 15~45 degC.

2. When cycle count over than 50 and charge current return to 0.5C during 15~45 degC.

 

Thanks.

  • 0
    TI__Intellectual 2381 points

    Supposedly you just need one mode to control charging current degradation.

    You can leverage the followings to meet your requirement.

    1. The initial charging current is set in advance charging algorithm.

    2. Set DEGRAGE_CC and CYCLE_DEGRATE bit activate this feature in Charging Configuration.

    3. Set Cycle Threshold is 50 and Current degradation is 20 in Degrade Mode 1.

    4. Set Cycle Threshold too huge to entry mode 1 and mode 2. Ex. 5000.

     

  • 0 in reply to Beginner
    TI__Intellectual 2381 points
    This is a general setting for all temp and cannot activate within temperature range. The degradation should happens all temp.
    If you inisist to have, maybe it can think to adjust normal CC to meet.