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BQ24100: Termination current for fast charge <250mA

Peter West1
Prodigy 60 points
Part Number: BQ24100
Other Parts Discussed in Thread: BQ24210

Hi,

What is the internally set termination current for a ICHG < 250 mA?

I have a 350 mAh battery but with a fast charge restriction to 0.5C so ICHG is 175 mA. In the Jan 15 datasheet, Electrical Specification only gives a value for > 250 mA  (8-12%). In para 8.4.5.7 a figure of 20% is given.

Thanks,

Pete,

  • 0
    TI__Genius 11850 points

    Hi Pete,

    ITERM is set by the user by choosing the appropriate value for RISET2, as shown in the formula below:

    The Electrical Characteristics table shows that the range of ITERM is from 15-200 mA, and the accuracy is +/- 20%.

    Where in the datasheet are you looking? I can't find any reference to Section 8.4.5.7, nor can I find the figures you mentioned.

    Best Regards,

    Angelo Zhang

    Applications Engineer | Battery Charging Products

  • 0 in reply to Angelo Zhang87
    Prodigy 60 points
    Hi Angelo,

    Thanks for your quick response. I made a critical typo in the title - it should have been BQ24210.

    Would you like me to post another question with the right title to keep things clear?

    My apologies,

    Pete.
  • 0 in reply to Peter West1
    TI__Genius 11850 points
    Hi Pete,

    Thanks for the clarification! Yes, please ask this question again in a new thread.

    Best Regards,
    Angelo Zhang
    Applications Engineer | Battery Charging Products