BQ27350PWR

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BQ27350PWR, device of which makes up part of Texas Instruments’ lineup of Fuel Gauge ICs, is multi-channel device, which organically combines several important functions, including measuring of charge state, amount of energy stored in the battery and management of data storing, etc. It also tells about status which specific cells are in, which helps to detect cell degradation under load stress conditions, thus protecting battery and providing power safety.

However, BQ27350PWR not only focuses on battery management function. Its application field also covers other aspects, such as condition monitoring, circuit protection, and real-time tracking, etc. Its main functions are to detect the real-time power monitoring and reporting of the battery, as well as provide a reliable and efficient way to monitor activity.

In terms of working principle, the BQ27350PWR operation mainly depends on a series of two-dimensional voltage scanning. In the scan process, the cell voltage is monitored in a two-dimensional way. Firstly, it is monitored with time, and then by voltage. During the scanning process, the device measures capacity and adjust power utilization in real time. In addition, the device also accounts for different temperature conditions. All the data is stored inside the device, so that users can get the battery state without further calculations.

Using average time current for charge and discharge, BQ27350PWR can also adjust power consumption due to change in current, thus obtaining better power conservation level. During discharge, it is able to calculate the peak current until package reach its highest power efficiency level and then gradually reduce power utilization until the package finally reaches shut-down voltage. When charge is detected, the peak power yield can be reached again. In this way, the device\'s battery pack ensures that the user will get a maximum of energy in finite timespan.

In extreme environment, BQ27350PWR also provides safety over-voltage and over-temperature protections. Thermal management function helps to monitor battery temperature, thus avoiding battery being damaged by high temperatures and increase its lifetime.

To sum up, BQ27350PWR can be classified as PMIC-Battery Management. It has multi-functionality, apart from battery management, it is also capable of condition monitoring, circuit protection, and real-time tracking, etc. It largely depends on time-voltage scanning for power management under different temperature conditions, and also features battery safety protection and thermal management for extended battery lifetime.

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