BQ2085DBTR Integrated Circuits (ICs)

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The BQ2085DBTR Battery Management System is an important component for providing power management solutions for Lithium-ion battery systems. It is an advanced Power Management IC (PMIC) which offers a complete solution for monitoring the state of charge (SoC) and state of health (SoH) of Li-ion batteries. It is designed with a secure and reliable architecture based on 1-Wire protocol, allowing it to monitor and report real-time information regarding Li-ion battery cells.

The BQ2085DBTR features a wide working voltage range of 3V to 15V, making it ideal for a variety of applications including mobile phones, tablets and battery packs. It has a high current capability of up to 750mA and a low sleep current consumption of around 4.3mA. It is designed to be used in battery systems with multiple cells that require precise monitoring of the charge state of each cell. The BQ2085DBTR system is compatible with most cell chemistries, however the device has been developed for use with Li-ion cells.

The BQ2085DBTR application field includes consumer electronics, automotive, industrial and medical applications. This PMIC is capable of integrating with a main controller such as a microcontroller (MCU) to provide a comprehensive solution for accurate and safe battery management. The MCU is used to configure the BQ2085DBTR and to monitor the battery SoC and SoH. The MCU can also be used to program the BQ2085DBTR with commands and register settings. The BQ2085DBTR also features an integrated temperature sensor, allowing it to monitor the temperature of the battery cells and adjust its operation accordingly.

The BQ2085DBTR working principle can be divided into two different aspects:

Charge State Monitoring: The BQ2085DBTR features a secure architecture that includes a Protection and Status Register (PSR) and a Status Register (SR). The PSR is used to register the charge state of each cell in the battery, enabling precise monitoring of the cell state. The SR is used to register the health of each cell in the battery, providing further information regarding the remaining charge and life-time of the Li-ion cells.

Temperature Measurement: The BQ2085DBTR has an integrated temperature sensor, allowing it to accurately measure the temperature of each cell in the battery. The temperature information is used for safety purposes and to adjust charge state sensing parameters to ensure the safe operation of the battery system. The temperature measurement is based on the principle of hot Juntion Compensation, which enables the precise temperature measurement of up to 4 cells connected in series.

The BQ2085DBTR power management system is highly efficient and provides precise and secure Li-ion battery monitoring. It offers excellent temperature measurement capability and can be integrated with a main controller to provide a comprehensive power management solution. This PMIC is suitable for use in a variety of applications and is capable of providing reliable and accurate Li-ion battery system monitoring.

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