BQ7791500PWT

The BQ7791500PWT is a highly integrated battery management system (BMS) IC designed by Texas Instruments, specifically tailored for lithium-ion and lithium-polymer battery packs. This device is particularly suited for applications in electric vehicles, energy storage systems, and portable electronics, where efficient battery management is crucial for performance and safety.

Key Features:

1. Cell Monitoring: The BQ7791500PWT supports the monitoring of up to 16 series-connected battery cells. It provides accurate voltage measurements for each cell, ensuring that they operate within safe limits and helping to prevent overcharging or deep discharging.

2. Cell Balancing: The IC includes features for passive cell balancing, which helps to equalize the charge across all cells in the battery pack. This is essential for maximizing the lifespan and performance of the battery.

3. Temperature Monitoring: The device incorporates temperature sensing capabilities, allowing it to monitor the thermal conditions of the battery pack. This feature is critical for preventing thermal runaway and ensuring safe operation under varying environmental conditions.

4. Integrated Protection Features: The BQ7791500PWT includes built-in protection mechanisms such as overvoltage, undervoltage, and overcurrent protection. These features help to safeguard the battery pack from damage and enhance overall safety.

5. Communication Interface: The IC supports a communication interface, typically using I2C or similar protocols, enabling it to communicate with a host microcontroller or other system components. This allows for real-time monitoring and control of the battery management system.

6. Low Power Consumption: Designed with energy efficiency in mind, the BQ7791500PWT operates with low power consumption, making it suitable for battery-operated devices where power efficiency is paramount.

7. Flexible Configuration: The device can be configured for various battery pack designs, making it versatile for different applications. It can be adapted to different cell chemistries and configurations, providing flexibility in design.

Package and Pin Configuration:

The BQ7791500PWT is typically housed in a compact package, such as a TQFP (Thin Quad Flat Package) or similar, which facilitates easy integration into printed circuit boards (PCBs). The pin configuration is designed to provide access to all necessary functions, including power supply, cell connections, communication lines, and temperature sensors.

Applications:

• Electric Vehicles (EVs): Used in battery packs for electric cars, providing essential monitoring and protection features.
• Energy Storage Systems: Ideal for residential or commercial energy storage solutions, ensuring safe and efficient operation of battery banks.
• Portable Electronics: Suitable for smartphones, tablets, and other portable devices that require reliable battery management.

In summary, the BQ7791500PWT from Texas Instruments is a robust and versatile battery management solution that combines advanced monitoring, protection, and communication features, making it an excellent choice for a wide range of battery-powered applications.