BQ7694003DBT

The BQ7694003DBT 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 BQ7694003DBT can monitor up to 16 series-connected battery cells, making it suitable for high-capacity battery packs. It provides accurate voltage measurements for each cell, ensuring that the cells operate within safe limits.

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

3. Communication Interface: The BQ7694003DBT supports a variety of communication protocols, including I2C, which allows for easy integration with microcontrollers and other system components. This enables real-time monitoring and control of the battery system.

4. Temperature Monitoring: The device can monitor the temperature of the battery cells, which is crucial for maintaining optimal performance and safety. It can interface with external temperature sensors to provide accurate readings.

5. Low Power Consumption: Designed for efficiency, the BQ7694003DBT operates with low power consumption, making it ideal for portable applications where battery life is critical.

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 built-in analog-to-digital converter (ADC) provides high-resolution measurements of cell voltages and temperatures, ensuring precise monitoring and control.

8. Fault Detection: The BQ7694003DBT includes features for detecting faults in the battery system, such as short circuits or cell imbalances, which can trigger protective actions to safeguard the battery pack.

Package and Pin Configuration:

The BQ7694003DBT is typically available in a compact, thermally enhanced package, which helps in managing heat dissipation during operation. The pin configuration is designed for easy integration into PCB layouts, with clearly defined pins for power, ground, communication, and monitoring functions.

Applications:

The BQ7694003DBT is suitable for a wide range of applications, including:

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

Conclusion:

Overall, the BQ7694003DBT from Texas Instruments is a robust and versatile battery management solution that provides essential monitoring and protection features for multi-cell battery systems. Its combination of advanced functionality, low power consumption, and flexible configuration makes it an excellent choice for engineers looking to enhance the safety and performance of their battery-powered applications.