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BQ25616: Question on battery charger ICs

Gopi K
Prodigy 120 points
Part Number: BQ25616
Other Parts Discussed in Thread: BQ25606, BQ24070

Hi,

We are planning to consider bq25616 or bq25606 Li-Ion battery charger controller in our new medical application where the performance and reliability matters.

Our customer already had some bad experience with TI part BQ24070RHLR. They found around 12% of assembled units were not working. I also found a thread on similar issue. Refer following link for more details.

e2e.ti.com/.../88469

Please let us know whether any similar failure issues reported for the parts bq25616 or bq25606? Also let us know whether these chips are good options or you can suggest any other better part.

Our requirements are as following.

Input: 5V, 3A+

Battery chemistry: Li-Ion single cell of 8Ah to 10Ah capacity

Output: Charging voltage: 4.2V, Charging current MAX: 3A

Efficiency: Above 90%

Voltage regulation tolerance: 0.5%

Features required: Standalone operation, Load sharing, battery supplement mode support, Charging status indication, Low quiescent current, Integrated reverse charge protection

Please let us know your thoughts on the above queries.

Thanks & Regards,

Gopi Krishnan K

  • 0
    TI__Mastermind 25800 points

    Hey Gopi,

    It seems the previous issue did not have any resolution, so it is impossible to compare any similarities.

    However, these are two completely different devices (the BQ25606 and BQ25616 compared to the BQ24070). 

    We are not aware of any issues with this device that would make the IC unresponsive or damaged.

    I would recommend our newer generation device, the BQ25616. 

    Regards,

    Joel H