BQ25882YFFR

The BQ25882YFFR is a highly integrated battery management IC from Texas Instruments, designed specifically for charging lithium-ion and lithium-polymer batteries. This device is particularly suited for applications in portable electronics, such as smartphones, tablets, and other battery-powered devices.

Key Features:

1. Input Voltage Range: The BQ25882 supports a wide input voltage range, typically from 4.5V to 14V, allowing it to work with various power sources, including USB and wall adapters.

2. Charge Current: It can deliver a maximum charge current of up to 5A, making it suitable for fast charging applications. The device also features programmable charge current settings, allowing designers to optimize charging based on the specific requirements of their application.

3. Battery Voltage Regulation: The IC provides precise battery voltage regulation, typically set at 4.2V for lithium-ion batteries, ensuring safe and efficient charging.

4. Integrated Power Path Management: The BQ25882 includes power path management capabilities, allowing the device to manage the power flow between the battery and the system load. This feature enables the device to charge the battery while simultaneously powering the system, enhancing overall efficiency.

5. Thermal Regulation: The device incorporates thermal regulation features to prevent overheating during charging. It adjusts the charge current based on the temperature of the IC, ensuring safe operation under varying thermal conditions.

6. I2C Interface: The BQ25882 supports an I2C interface for communication with a host microcontroller. This allows for advanced configuration, monitoring, and control of the charging process, enabling features like battery status reporting and fault detection.

7. Safety Features: The IC includes multiple safety features, such as overvoltage protection, overcurrent protection, and thermal shutdown, ensuring reliable operation and protecting both the device and the battery.

8. Small Package Size: The BQ25882YFFR is available in a compact VQFN package, which is ideal for space-constrained applications. This small footprint allows for easier integration into various designs.

Applications:

• Smartphones and tablets
• Wearable devices
• Portable medical devices
• Power banks
• Other consumer electronics

Conclusion:

The BQ25882YFFR from Texas Instruments is a versatile and efficient battery management solution that combines high performance with a range of features tailored for modern portable electronics. Its ability to handle fast charging, power path management, and safety features makes it an excellent choice for designers looking to enhance the performance and reliability of their battery-powered applications.