BQ7694002DBTR

The BQ7694002DBTR is a highly integrated battery monitor and protection device from Texas Instruments, designed specifically for lithium-ion and lithium-polymer battery management systems. This device is part of the BQ76940 family, which is known for its advanced features and capabilities in managing multi-cell battery packs.

Key Features:

1. Cell Monitoring: The BQ7694002 can monitor up to 4 series-connected battery cells, providing accurate voltage measurements for each cell. This ensures that the cells are operating within safe voltage limits, which is crucial for battery longevity and safety.

2. Integrated Protection: The device includes built-in protection features such as over-voltage, under-voltage, and over-current protection. These features help prevent damage to the battery cells and enhance the overall safety of the battery management system.

3. Communication Interface: The BQ7694002 supports a variety of communication protocols, including I2C, which allows for easy integration with microcontrollers and other system components. This facilitates real-time monitoring and control of the battery pack.

4. Temperature Monitoring: The device can interface with external temperature sensors, enabling temperature monitoring of the battery cells. This is essential for preventing thermal runaway and ensuring safe operation under varying environmental conditions.

5. Low Power Consumption: The BQ7694002 is designed for low power operation, making it suitable for applications where battery life is critical. It features a sleep mode that significantly reduces power consumption when the device is not actively monitoring the battery.

6. Flexible Configuration: The device can be configured for different battery chemistries and pack configurations, allowing for versatility in various applications, from consumer electronics to electric vehicles.

7. Integrated ADC: The BQ7694002 includes an integrated analog-to-digital converter (ADC) for precise voltage measurements, enhancing the accuracy of the monitoring system.

8. Fault Detection: The device is equipped with fault detection capabilities, which can identify issues such as short circuits or open circuits in the battery pack, providing additional safety measures.

Package and Pin Configuration:

The BQ7694002DBTR is available in a compact, thermally enhanced HTQFP (Thin Quad Flat Pack) package, which allows for efficient heat dissipation and space-saving designs. The pin configuration is designed for easy integration into PCB layouts, with clearly defined pins for power, ground, communication, and cell connections.

Applications:

The BQ7694002 is suitable for a wide range of applications, including:

• Electric vehicles (EVs)
• Energy storage systems
• Portable electronics
• Power tools
• Medical devices

Conclusion:

The BQ7694002DBTR from Texas Instruments is a robust and versatile battery management solution that combines advanced monitoring, protection, and communication features. Its design caters to the growing demand for safe and efficient battery systems in various industries, making it a valuable component for engineers and designers working on battery-powered applications.