BQ27350EVM

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Evaluation and demonstration boards and kits are tools that help designers test, evaluate, and develop products. The BQ27350EVM, or the Texas Instruments Battery Gas Gauge and Power Path Evaluation Module, falls under this category. This device and its associated software provides engineers with a platform for the development of their applications and designs for digital power management. It is used to accurately measure the gas gauge or charge status of a lithium-ion battery and its power path management.

The BQ27350EVM features the bq27350 device, which is a highly integrated microcontroller and protection IC designed for lithium-ion battery operations. It features an integrated buck-boost switching regulator, a 12-bit 100 kHz ADC, and on-chip protection controllers. This device provides a broad range of features, including complete integrated solution for measuring available energy, power path control, and safety protections of the battery.

The application field of the BQ27350EVM involves a wide range of energy and power management systems, such as portable medical and ultra-low power IoT communications, instrumentation, and other battery-powered devices. This device can be used to monitor battery charge capacity and power path management of Li-ion and Li-Polymer batteries. This allows users to accurately measure the battery\'s remaining charge and remaining capacity, as well as providing voltage- and temperature-dependent safety limits and protection features. The device can also be used to evaluate different charging strategies, such as DC and multi-phase balancing. Finally, it also supports multiple-cell gas gauging and protection, as well as providing access to statistical information for data logging and advanced control algorithms.

The working principle of the BQ27350EVM is fairly simple. The device continuously measures the battery\'s voltage, current, and temperature and stores the data into a Micro Monitor™ Internal Data EEPROM. The data is then used to calculate the remaining capacity, as well as provide voltage- and temperature-dependent safety limits and protection from over-discharge, over-charge, and short-circuit conditions. The calculated values can be access via I2C or access for quick battery status snapshots.

The BQ27350EVM provides engineers with the tools and features they need to develop designs for digital power management systems. It features an integrated buck-boost switching regulator, a 12-bit 100 kHz ADC, and on-chip protection controllers that allow for accurate charge measurements and power path management. It is used for a wide range of energy and power management applications, such as portable medical and ultra-low power IoT communications, instrumentation, and other battery-powered devices. The working principle of the device involves continuously measuring the battery\'s voltage, current, and temperature and storing the data into a Micro Monitor™ Internal Data EEPROM, then using it to calculate the remaining capacity, as well as provide voltage- and temperature-dependent safety limits and protection from over-discharge, over-charge, and short-circuit conditions.

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