BQ27532-G1 - Battery Management Unit Impedance Track Fuel Gauge for BQ2425x Charger
The BQ27532-G1 system side, Li Ion battery management unit is a micro controller peripheral that provides Impedance Track fuel gauging and charging control for single cell Li Ion battery packs.
The fuel gauge requires little system micro controller firmware development. Together with bq2425x single cell switch mode charger, the fuel gauge manages an embedded battery (non removable) or a removable battery pack.
The fuel gauge uses the patented Impedance Track algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state of charge (%), runtime to empty (minimum), battery voltage (mV), temperature (°C), and SoH (%). Battery fuel gauging with the device requires only PACK+ (P+), PACK– (P–), and thermistor (T) connections to a removable battery pack or embedded battery circuit. The 15 pin Nano-Free (CSP) package has dimensions of 2.61 mm × 1.96 mm with 0.5 mm lead pitch. It is ideal for space constrained applications.