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Texas Instruments bq75614EVM-021 Monitor Evaluation Module (EVM) is designed to evaluate the BQ75614-Q1. The BQ75614-Q1 provides high-accuracy, cell voltage measurements for 6 to 14 battery cells. With the inclusion of an integrated current monitor ADC, the BQ75614-Q1 device is also able to provide highly accurate current sensing measurements for performing state-of-charge calculations of the battery pack.
The Texas Instruments bq75614EVM-021 is equipped with precision measurement and synchronous communication to enable a master controller to perform State of Charge (SOC) and State of Health (SOH) estimation. Highly-accurate cell voltages and a fast sampling time for the entire battery pack allows more efficient operation of battery modules and more accurate SOC and SOH calculations. Communication with stacked BQ79616EVM-021s is via an isolated daisy-chain differential bus. For the standalone BQ75614EVM-021, SOC and SOH are further assisted by an integrated current sense ADC.
Control a single evaluation module or multiple stacked evaluation modules using a PC-hosted GUI. Communication between the PC and the base device in a stack of BQ79616EVM-021 (or a single standalone BQ75614EVM-021 device) is via a USB2ANY UART interface. For a stack of BQ79616EVM devices, communication between all other evaluation module in the stack occurs via the isolated, daisy-chain differential communication bus. The PC GUI allows configuration of the evaluation modules to monitor cells and other analog data channels, control balancing, and monitor details of any faults.
