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BQ25710: BQ25710 no charge current

Star Xu
Genius 9645 points
Part Number: BQ25710

Hi 

The customer design with BQ25710, battery power supply mode: VSYS =battery voltage. 12V power supply, VSYS= battery voltage+ 0.3V.

 when connected to the power supply without battery, the output is 6.2v. The specific circuit is shown in the figure below. The voltage of each test point of the circuit has been marked.

Please help check it.

Thanks

Star

  • 0
    TI__Expert 3335 points

    Hi Star,

    Can you please clarify what exactly do you need checked? Are you asking why there are no charge current when battery is attached? Please share the register map.

    All the voltages marked are expected values for a 2S battery. When connected to power supply without a battery, the system will be held at MINSYS which is ~6.2 V. 

    Best Regards,

    Munir