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The BQ7694003DBTR is a battery monitor with a built-in analog-to-digital converter (ADC), supporting up to 16 series-connected battery cells. It includes features for cell voltage monitoring, temperature sensing, and balancing, as well as protections against overvoltage, undervoltage, and over-temperature conditions. It is suitable for electric vehicles, energy storage systems, and other battery-operated devices. Functions - Cell Voltage Monitoring: Monitors individual cell voltages and provides high accuracy. - Temperature Monitoring: Integrates temperature sensors to ensure safe operation. - Battery Balancing: Supports passive balancing of cells to maintain cell health. - Protection Features: Includes overvoltage, undervoltage, and over-temperature protections. - Communication Interface: Utilizes I2C or SMBus for communication with host controllers. - Integrated ADC: Offers a high-resolution ADC for measuring voltages and temperatures. Applications - Electric vehicles (EVs) - Electric bicycles (e-bikes) - Energy storage systems (ESS) - Portable power banks - Various consumer electronics relying on lithium-ion batteries Alternative Parts - BQ76915: A similar device for monitoring fewer cells, suitable for smaller battery packs. - BQ76930: A variant that supports up to 10 series cells. - BQ40Z50: A more advanced device that also includes fuel gauging features. Embedded Modules - The BQ7694003 can be integrated into various battery management system designs, often used with microcontrollers or FPGAs for system control and monitoring. - It may be part of larger development kits that include other TI components for power management and connectivity. Q&A 1. Q: What type of batteries is the BQ7694003DBTR designed to monitor? - A: The BQ7694003DBTR is specifically designed for lithium-ion and lithium polymer batteries. 2. Q: How does the BQ7694003DBTR ensure the safety of the battery cells? - A: It features built-in protections for overvoltage, undervoltage, and over-temperature, helping to prevent damage and maintain safe operation of the battery cells. 3. Q: Can the BQ7694003DBTR communicate with a microcontroller? - A: Yes, it uses an I2C or SMBus communication interface to relay data to a microcontroller or host processor. 4. Q: How does the device perform cell balancing? - A: The BQ7694003DBTR supports passive balancing, which involves dissipating excess energy from higher-voltage cells to equalize the cell voltages within the battery pack. 5. Q: What kind of applications can benefit from using the BQ7694003DBTR? - A: Applications such as electric vehicles, energy storage solutions, and portable electronics that utilize lithium-based battery technologies can greatly benefit from the features offered by this device.