BQ25703A: How to calculate the maximum charging and maximum discharging current of lithium battery

Amelie Zheng

Genius 10865 points

Part Number: BQ25703A

Hi Team,

When using BQ25703A, how to calculate the maximum charging current and maximum discharging current of lithium battery?

Thanks!

over 5 years ago

0 ezhao over 5 years ago

TI__Genius 10240 points

Hi Amelie,

Please refer to the datasheet Section 8.3.5.1 High-Accuracy Current Sense Amplifier (IADPT and IBAT) for the calculation equation of IBAT measurement. REG32[6] determines the IBAT pin for charging or discharging current. REG00[3] determines the gain.

Power management

Power management forum

BQ25703A: How to calculate the maximum charging and maximum discharging current of lithium battery