Stanley,
8A version of BQ25890 is not available. You may consider dual charger design to achieve 8A charge current. Please refer to https://www.ti.com/tool/TIDA-00590 for the details.
Thanks,
Ning.
Hey Alexei,
Based on the information you've given, I am going to suggest a simple solution that customers often use for high-current designs like yours.
Please check out these two TI Reference Designs for a dual charger application.
1) www.ti.com…
Regarding the datasheet, you will need to sign up on our website and request access. It will be granted quickly after that.
Regarding the 5A, with only one charger, you will need slightly more than 7V input power to get 5A charging due to the IC's 3…