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bq25070 charge current limit at float charge

Hiroaki Tanikoshi
Intellectual 675 points
Other Parts Discussed in Thread: BQ25070

Hello,

I would like to know bq25070 charge current limit during its float chrage stage.

Before Vrch threshhold is activated, for example, when Vbat would be around 3.4V, what is the maximum float charge current ?

Best regards,

Hiroaki Tanikoshi

  • 0
    TI__Mastermind 20170 points
    Please see datasheet figure 13. When the battery voltage reaches VO(OVCH), IC enters float voltage stage and charge terminates. No charge current should be going into the battery until VBAT relaxed down to the VO(REG).

    As battery voltage drop further but above VRCH threshold, the small current to top off the charge is not specified. From the bench test on the EVM. It is around 5mA.