BQ25703A: The schemetic review

user6544449

Intellectual 795 points

Part Number: BQ25703A

Hello Teams,

Could you pls help reveiw the schemetic of BQ25703RSNR, we use this on charger for 2cell Li-battery.

Thanks!

11 months ago

0 Md Munir Hasan 11 months ago

TI__Expert 3335 points

Hi,

1. Make sure that the input capacitors (C6+C12) and system capacitors (C17+C18) meet the system power requirement as explained in the schematic check list here. You may need more capacitors at the system output.

2. Make sure that SDA and SCL lines have 10kOhm pull up resistors.

Best Regards,

Munir

0 user6544449 11 months ago in reply to Md Munir Hasan

Intellectual 795 points

Thanks for your support, and the output is Li battery 3S2P, is that parameter correct for this application?

+1 Md Munir Hasan 11 months ago in reply to user6544449

TI__Expert 3335 points

Hi,

For 3S battery the CELL_BATPRESZ pin should be above 55% of VDDA. In your schematic it is ~58% which is correct for your battery configuration.

Best Regards,

Munir

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BQ25703A: The schemetic review