BQ25071DQCT

The BQ25071DQCT is a highly integrated battery charger IC designed by Texas Instruments, specifically tailored for single-cell lithium-ion (Li-ion) and lithium-polymer (LiPo) battery applications. This device is particularly suited for portable electronics, such as smartphones, tablets, and other battery-powered devices.

Key Features:

1. Charging Capability: The BQ25071 supports a wide input voltage range, typically from 4.5V to 20V, allowing it to be powered from various sources, including USB and wall adapters. It can handle a charging current of up to 1A, making it efficient for fast charging applications.

2. Integrated Power Path Management: This feature allows the device to manage the power flow between the battery and the load, ensuring that the device can operate while charging without interruption. It intelligently switches between the battery and the input power source to optimize performance and battery life.

3. Thermal Regulation: The BQ25071 includes thermal regulation features that help prevent overheating during charging. It adjusts the charging current based on the temperature of the device, ensuring safe operation under varying conditions.

4. Battery Protection: The IC incorporates several safety features, including overvoltage protection, undervoltage lockout, and short-circuit protection, which help safeguard the battery and the device from potential damage.

5. Status Indication: The device provides status outputs that indicate the charging state, such as charging, completed, or fault conditions. This is useful for user feedback and system diagnostics.

6. Small Package Size: The BQ25071 is available in a compact QFN (Quad Flat No-lead) package, which is ideal for space-constrained applications. Its small footprint allows for easy integration into various PCB layouts.

7. Low Quiescent Current: The IC is designed to consume minimal power when not actively charging, which is crucial for extending battery life in portable devices.

Applications:

The BQ25071DQCT is suitable for a variety of applications, including:

• Smartphones and tablets
• Wearable devices
• Portable medical equipment
• Consumer electronics
• IoT devices

Conclusion:

Overall, the BQ25071DQCT from Texas Instruments is a versatile and efficient battery charger IC that combines advanced features for managing lithium-ion and lithium-polymer batteries. Its integration of power path management, safety features, and compact design makes it an excellent choice for modern portable electronic devices.