BQ771809DPJT

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Analog Devices BQ771809DPJT is a Precision Gas Gauge with a flexible feature set that enables easy optimization for any battery application. It has been designed with a strong focus on accuracy and performance and optimized for stable, long-term usage for a variety of commercial, Industrial, and consumer applications. This battery management IC is ideally suited for applications that require accurate and comprehensive information on battery capacity and state of charge. The BQ771809DPJT provides system-on-a-chip features that reduce design time, minimize engineering risk, and reduce footprint.

The BQ771809DPJT can be used for battery management systems that are capable of monitoring, controlling, and protecting 1-5 cell packs. It provides a wide range of functions to meet the needs of a variety of applications, including automotive, medical, industrial, lighting, portable and telecommunication applications. This device measures the charge and discharge state of a battery, and estimates the remaining battery power based on the coulomb count, temperature, and other parameters. The BQ771809DPJT also supports cell balancing, allowing the user to extend battery life and increase the accuracy of state of charge detection.

The BQ771809DPJT is based on a three-stage system to accurately measure and monitor the battery\'s charge and discharge state. The first stage is a Coulomb counter, which is a precision resistor servo loop that senses the battery current and accurately accumulates the charge in and out of the battery. The second stage is a fuel-gauge engine, which measures the remaining capacity of the battery based on its voltage, current, and other parameters. The third stage is the alert system, which triggers warning signals when the battery\'s capacity drops below a certain level.

The BQ771809DPJT works by sensing and controlling the current flow in and out of the battery. It features an advanced algorithm that can accurately predict the remaining battery capacity and keep the fueling within predetermined safety limits. It also supports cell-level balancing, which allows the user to balance the charge and discharge levels of individual cells to improve performance and extend battery life. Furthermore, the device provides comprehensive protection against over-charge and over-discharge, short-circuit, and thermal events.

The BQ771809DPJT utilizes an onboard flash memory to store the calibration data, which can be used for low voltage protection, charging control, and other features. The device also features an advanced circuit feature called Smart Charge threshold, which enables the user to configure the device to initiate and terminate charge operations within predefined limits. The device is fully compatible with Li-ion, LiFePO4, and NiCd/NiMH chemistries and has a programmable cell count of one to five cells.

In conclusion, the BQ771809DPJT is an ideal solution for battery management applications. Its highly advanced features provide robust protection against overcharging, over discharging, and other hazardous events ensuring long-term safety and reliable operation. Its precision Coulomb count, fuel-gauge engine, and smart charge threshold are designed to accurately monitor and control the battery\'s charge-state. With its wide range of features and flexible configuration options, the BQ771809DPJT is the perfect choice for a variety of industrial, commercial, and consumer applications.

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