BQ34Z110EVM

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The BQ34Z110EVM (evaluation and demonstration board and kit) is an advanced battery monitoring and fuel gauging platform developed by Texas Instruments. It is designed for use in applications such as laptops, tablet PCs, and two-wheel vehicles to provide accurate fuel-gauging and other battery management functions. The platform uses TI\'s bqFS full-featured firmware and the bq34Z-110-A1 IC to monitor and control a variety of parameters, including cell voltage, temperature, SOC (state of charge), battery ID, and safety isolation.

The BQ34Z110EVM consists of several key components that are essential for proper operation. The bqFS firmware is a full-featured, robust and low-power firmware solution for battery cell and system management. It is a combination of accurate, algorithm-based calculation and comprehensive data logging that enables real-time fuel-gauging with the appropriate safety. In addition, it provides over-voltage and over-temperature protection, as well as supporting an extended range of features.

The BQ34Z110A1 IC, based on TI\'s ultra-low power MSP430FR60xx microcontrollers, integrates a 12-bit communication interface, a fuel-gauging engine, and a host of other features. The system characterizes the behavior of Li-ion batteries over their lifetime and communicates with the bqFS firmware to control the safety features and monitor the battery conditions. It provides accurate fuel-gauging with a sampling frequency up to 4 kHz, a high current-sensing resolution of 1 µA, and a wide temperature range of -40°C to 125°C. The IC also provides safety isolation with power FETs and isolates input and output lines to protect the system from system level failure due to output short or ESD pulses.

The BQ34Z110EVM also includes several additional features to further enhance its performance and durability. It supports temperature compensation of fuel-gauging cell voltage in the presence of extreme temperature variation, and provides charge and discharge voltage limiting. In addition, it has a unique cell balancing feature that can adjust cell imbalance of up to 0.15V per cell. This feature helps reduce cell voltage drift and minimize battery swelling.

The BQ34Z110EVM is designed as a complete system solution for battery monitoring applications, simplifying integration and providing comprehensive features and capabilities. Through TI\'s development tools, software libraries, and design guidelines, the platform can be quickly customized and adapted for a variety of applications. With the support of an intuitive GUI and an integrated GUI API, the platform can be easily set up and monitored.

The BQ34Z110EVM is an advanced and reliable battery monitoring and fuel gauging platform that offers a variety of features and functionality for various applications. It provides a comprehensive and flexible solution for accurate and efficient fuel-gauging and cell monitoring. With TI\'s advanced tools and software libraries, the system can be quickly and easily customized for specific applications, reducing development time and costs.

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