BQ24232RGTTG4

PMIC (Power Management Integrated Circuits) provide a better power management solution to many electronic systems. BQ24232RGTTG4 is one of the main products of PMIC. It is designed to be a highly efficient linear charger that provides a highly efficient solution for charging a single-cell Li-ion/Li-ion polymer battery.

Application Field

BQ24232RGTTG4 is widely used in many high-power charging applications. It is commonly used for single-cell Li-ion/Li-ion polymer battery charging applications such as powering mobile phones, portable media players, digital cameras, and other portable consumer electronics. The device is ideal for use in space-constrained applications due to its small size and typical operating current of 110 mA.

Working Principle

BQ24232RGTTG4 utilizes a linear constant current/constant voltage charge control architecture. During charging, the device begins by providing a constant-current charge to the battery. When the battery reaches the full charge threshold, it switches to a constant voltage charging to prevent overcharging. This control method enables the device to provide an effective charging duty cycle to maximize efficiency while ensuring that the battery is not damaged.

The device uses Smart Thermal Regulation (STR) to prevent battery overcharging. The STR feature allows the device to detect the battery temperature and maintains a safe charging rate under most operating conditions. The device also includes an Under-Voltage Lockout (UVLO) feature to protect the battery from overdischarge. This feature provides the charging system with flexibility and stability, as the system can be safely shut down if the battery drops below a certain voltage.

BQ24232RGTTG4 also offers over temperature protection (OTP) to protect the device from overheating due to extended periods of charging. This feature ensures that the battery does not become damaged due to extended charging times. Additionally, the device includes a reverse current timeout (RCTO) feature that prevents the battery from overcharging if the charging current falls below a certain limit.

Conclusion

BQ24232RGTTG4 is a highly efficient linear charger designed to maximize charging efficiency while ensuring that the battery is not damaged during charging. The device offers various protection features such as Smart Thermal Regulation(STR), Under-Voltage Lockout (UVLO), Over Temperature Protection (OTP), and Reverse Current Timeout (RCTO). It is ideal for use in single-cell Li-ion/Li-ion polymer battery charging applications such as powering mobile phones, portable media players, digital cameras, and other portable consumer electronics.