Texas Instruments BQ7694202PFBR

The BQ7694202PFBR is a highly integrated battery protection and cell balancing IC designed for 3- to 10-series lithium-ion, lithium iron phosphate (LiFePO4), and lithium manganese oxide (LiMn2O4) battery packs. It provides accurate voltage monitoring and protection, cell balancing, and secure battery management for various battery applications. Functions: The BQ7694202PFBR offers several key functions, including overvoltage protection, undervoltage protection, short circuit protection, overtemperature protection, individual cell voltage monitoring, and cell balancing. It also features a robust communication interface to communicate with the host microcontroller. Applications: This IC is commonly used in applications such as electric vehicles, e-bikes, power tools, energy storage systems, and other battery-powered devices that require battery monitoring, protection, and cell balancing capabilities. Alternative Parts: Some alternative parts that offer similar functionalities are the BQ7693003PWR and BQ7694003PW. These ICs are suitable for battery pack sizes ranging from 3- to 16-series cells. Embedded Modules: Texas Instruments also provides evaluation modules and development kits for the BQ7694202PFBR. These modules simplify the design process and allow for easy prototyping and testing of the IC's functionality in different applications. Related Q&A: 1. Can the BQ7694202PFBR handle both Li-ion and LiFePO4 batteries? Yes, the BQ7694202PFBR is specifically designed to support both lithium-ion and lithium iron phosphate batteries. 2. How does cell balancing work in the BQ7694202PFBR? The BQ7694202PFBR uses an active cell balancing technique to equalize the voltage of individual cells in a battery pack. It transfers charge from higher voltage cells to lower voltage cells to maintain cell voltage balance, increasing overall pack performance and longevity. 3. Can the BQ7694202PFBR operate without a microcontroller? No, the BQ7694202PFBR requires an external microcontroller to communicate with and control its functionalities. It provides a robust communication interface (such as SPI or I2C) to interact with the host microcontroller. 4. What is the maximum number of cells that the BQ7694202PFBR can monitor? The BQ7694202PFBR can monitor battery packs with a series cell count ranging from 3 to 10 cells. 5. Does the BQ7694202PFBR support fast charging? Yes, the BQ7694202PFBR supports fast charging by monitoring cell voltages and ensuring that they are within safe operating limits during the charging process. It also provides overcurrent protection to safeguard the battery pack. Please note that the availability and specifications of the mentioned ICs and modules may vary, and it's recommended to refer to the official Texas Instruments documentation for the most accurate and up-to-date information.