The BQ26221PWR is an integrated circuit (IC) component that offers a comprehensive solution for managing single-cell lithium iron phosphate (LiFePO4) batteries. It is designed to regulate the charging and discharging processes, ensuring optimum performance, safety, and extended battery life.
Key Features:
1. Charging and Discharging Protection: The BQ26221PWR provides active and passive overvoltage, overcurrent, and short-circuit protections during the charging and discharging cycles. This ensures the safety of the battery and connected devices.
2. High Charging Efficiency: The IC utilizes a high-efficiency synchronous buck charger architecture for optimal power delivery to the battery. It employs a constant current and constant voltage charging technique to maximize efficiency and reduce charging time.
3. Charging Termination: The BQ26221PWR employs a precise charge termination algorithm based on input parameters such as voltage, current, and temperature to avoid overcharging and prevent damage to the battery.
4. Voltage and Current Monitoring: This IC component is equipped with a precise voltage and current monitoring feature. It allows real-time monitoring of the battery's voltage and charging/discharging current, enabling accurate control over the battery's state of charge (SOC) and health.
5. Temperature Monitoring: The BQ26221PWR features an integrated temperature sensor for monitoring the battery's temperature. It uses this data to prevent charging in extreme temperatures, ensuring the battery's safety and prolonging its lifespan
