BQ7694003DBTR

The BQ7694003DBTR is a highly integrated battery monitor and protection device from Texas Instruments, designed specifically for lithium-ion battery management systems. This device is part of the BQ76940 family, which is tailored for applications requiring precise monitoring and protection of battery cells in multi-cell configurations.

Key Features:

1. Cell Monitoring: The BQ7694003 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 battery operates 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 BQ7694003 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 management system.

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

5. Low Power Consumption: The BQ7694003 is designed for low power consumption, making it suitable for battery-operated devices. It features a sleep mode that significantly reduces power draw when the system is inactive.

6. Flexible Configuration: The device can be configured for different battery chemistries and pack configurations, providing versatility for various applications, including electric vehicles, energy storage systems, and portable electronics.

7. Integrated ADC: The built-in analog-to-digital converter (ADC) allows for precise voltage measurements, enhancing the accuracy of the battery monitoring system.

8. Fault Detection: The BQ7694003 includes fault detection capabilities, which can identify issues such as short circuits or cell imbalances, allowing for timely intervention and protection of the battery system.

Package and Pin Configuration:

The BQ7694003DBTR is available in a compact HTQFP (Thin Quad Flat Pack) package, which is designed for surface mounting. The pin configuration is optimized for easy integration into PCB designs, with clearly defined pins for power, ground, communication, and monitoring functions.

Applications:

The BQ7694003 is ideal for a wide range of applications, including:

• Electric vehicles (EVs)
• Energy storage systems (ESS)
• Portable electronic devices
• Power tools
• Uninterruptible power supplies (UPS)

Conclusion:

The BQ7694003DBTR from Texas Instruments is a robust and versatile battery management solution that combines advanced monitoring, protection, and communication features. Its ability to handle multiple cells, coupled with integrated safety mechanisms, makes it an excellent choice for modern battery-powered applications.