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BQ27010: If the PKCFG[0]=1, does the IMIN decrease by 25% per degree below Toff of 12 degrees?

Statham Su
Genius 4990 points
Part Number: BQ27010

Hello Sir:

We have question on BQ27010, when operating in low temperature the tape current threshold is changed.

If the PKCFG[0]=1, does the IMIN decrease by 25% per degree below Toff of 12 degrees?

Please help to provide recommendations for us.

Thanks a lot.

  • 0
    TI__Guru** 104905 points

    Hello Statham,

    It will modify the DCGN value by 25%, not the IMIN directly.

    Sincerely,

    Wyatt Keller

  • 0 in reply to Wyatt Keller
    Genius 4990 points

    Hello Wyatt:

    Previously, according to the datasheet of Bq27010, it was mentioned that IMIN would change due to low temperature.

    The results of our experiments also found that IMIN does indeed become lower at low temperatures.

    But your feedback is not to change directly, but it changes DCGN,.

    Then how does DCGN affect the value of IMIN?

    As we know DCGN (discharge rate compensation gain) should only affect discharge, how is the charged IMIN affected?

    Can you give an example for us?

    Thanks a lot.