JAJSEU9B September 2017 – September 2019 BQ25910
PRODUCTION DATA.
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For high current charging systems, resistance between the charger output and battery cell terminal such as board routing, connector, MOSFETs and sense resistor can force the charging process to move from constant current to constant voltage too early, thereby increasing charge time. To speed up the charging cycle, the device provides differential remote sensing terminals for battery positive and negative terminals, which can extend the constant current charge time to deliver maximum power to the battery.
The device regulates BATP – BATN = VBAT to the programmed VREG voltage. By connecting the sense terminals as close the battery as possible, the charger can deliver maximum charging power to battery. The kelvin connections to the battery can be made via a 100-Ω resistor.