BQ7694000DBTR

The BQ7694000DBTR 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 BQ7694000 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-temperature protection. These features help prevent damage to the battery cells and enhance the overall safety of the battery management system.

3. Communication Interface: The BQ7694000 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 using external thermistors, providing additional safety by ensuring that the cells do not exceed safe operating temperatures.

5. Low Power Consumption: The BQ7694000 is designed for low power operation, which is crucial for battery-powered applications. 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 configurations, making it versatile for various applications, including electric vehicles, energy storage systems, and portable electronics.

7. Integrated ADC: The BQ7694000 includes an integrated analog-to-digital converter (ADC) that provides high-resolution measurements of cell voltages and temperatures, ensuring accurate monitoring and control.

8. Fault Detection: The device is equipped with fault detection capabilities, allowing it to identify and respond to abnormal conditions, such as short circuits or cell imbalances, thereby enhancing the reliability of the battery system.

Package and Pin Configuration:

The BQ7694000DBTR is available in a compact, thermally enhanced HTQFP (Thin Quad Flat Pack) package, which facilitates efficient heat dissipation and allows for a smaller footprint on the PCB. The pin configuration is designed for easy connection to external components, such as thermistors and communication lines.

Applications:

The BQ7694000 is ideal for a wide range of applications, including:

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

Conclusion:

The BQ7694000DBTR from Texas Instruments is a robust and versatile battery management solution that combines advanced monitoring, protection, and communication features in a single package. Its ability to handle multiple cells, coupled with its low power consumption and flexible configuration options, makes it an excellent choice for modern battery-powered applications.