BQ27200DRKR Integrated Circuits (ICs)

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PMIC - Battery Management is constantly becoming more important in today’s world with the growth of consumer electronics, rising dependency on connected and mobile devices, and an increasing demand for different types of power solutions. With this rise of consumer electronic devices, the ability to precisely manage the power going into and out of the battery is becoming paramount to ensure optimum performance and reliability. The BQ27200DRKR falls into this category and is designed to provide high-accuracy Fuel Gauging and battery cell balancing for rechargeable Li-Ion and LiFePO4 batteries. This application field and its corresponding working principle will be discussed in further detail below.

The BQ27200DRKR is a Fully-Integrated, Single Chip, 7-Cell Li-Ion/LiFePO4 Fuel Gauge IC that provides high-accuracy fuel gauging, self-calibration, cell delta voltage measurement, over-temperature system protection, open circuit cell measurement, and integrated coulomb counting for time-based operation. These features combine to make it ideal for powering wearables, portable electronics, and other battery powered applications. Key features of the BQ27200DRKR include its patented Impedance Track technology, which accurately estimates a battery’s remaining capacity; its integrated Pulse Charging support, which helps extend battery life and manage battery temperature; and its linear Voltage Regulation Combiner, which offers a wide input voltage range and low quiescent current.

BQ27200DRKR’s working principle is relatively simple; it utilizes Impedance Track technology to measure each cell’s impedance. The principle behind this technology is that when lithium ion batteries are charged and discharged, the impedance of each cell will change as a function of capacity and state of charge. The BQ27200DRKR measures these changes in impedance over time and uses them to determine the battery’s capacity. This helps the device to accurately determine the amount of energy remaining in the battery and the remaining power source of the battery by providing a better understanding of the charge-discharge cycle. Additionally, the device can also accurately measure the difference in voltage between each of the cells in the battery. This helps to ensure that the cell balancing process is regulated and that the maximum integration of energy is maintained within the battery.

The BQ27200DRKR also offers a host of other features and functions that make it ideal for battery management applications. These include its high-speed coulomb counter, which can measure charge and discharge current in real-time and is capable of tracking capacity down to 0.01% of a Coulomb, as well as its capacity tracking function, which is used to accurately monitor a battery’s remaining capacity throughout its cycle. Additionally, the device has advanced temperature management functions and can be configured to protect a battery from being overcharged or over-discharged. Finally, the device includes an integrated power monitor and can be used to monitor and manage the voltage drop across the battery.

In conclusion, the BQ27200DRKR is an ideal choice for application fields that require the accurate management of a rechargeable Li-Ion or LiFePO4 battery. Its advanced features, such as its Impedance Track technology, integrated Pulse Charging support, and integrated power monitor, as well as its robust temperature management features make it suitable for a wide variety of applications. The device’s working principle is relatively simple and consists of accurately determining the amount of energy remaining in the battery and the remaining power source of the battery by measuring changes in cell impedance over time. The BQ27200DRKR is a key player in the PMIC - Battery Management field and is quickly becoming the standard for precise battery management solutions.

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