BQ24167YFFR Integrated Circuits (ICs)

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BQ24167YFFR, a three-stage highly integrated battery charger and adapter with input voltage range of 4.75 to 28 V, is widely used in the power management industry. This advanced charging feature enables automatic charging of Li-ion, Li-polymer and nickel metal hydride (NiMH) batteries with a minimum of programming and external components. It is also capable of automatic switching between AC adapter and DC charger modes.

The three-stage charging architecture of the BQ24167YFFR includes pre-conditioning, constant current (CC) and constant voltage (CV), allowing optimized charging of your battery cells. Pre-conditioning starts at 4V and will raise the cell voltage to 4.2V, then the CC mode will take effect to the target fast charge current, and the final step is entering CV mode. BQ24167YFFR regulates the cell charge current and the CV mode to ensure that the cell is reached to a peak of 4.2V, and the voltage gradually decrease to 4.1V or lower. An Input MOSFET (the power switch) is also integrated in the device, which handles the input of up to 10A. This can be used to control input current, create a low standby power mode, or reduce the total bill of materials (BOM) in the system.

Due to its high level of integration, the BQ24167YFFR supports a wide range of battery chemistries, including NiMH and NiCd, multichemistry Li-ion, Li-polymer and LiFePO4. This allows for automatic compatibility with any battery used, greatly accelerating the design process and reducing the overall cost of the system. In addition, the BQ24167YFFR supports various features such as status monitoring, reverse current protection, over-temperature protection, short-circuit protection and thermal regulation.

The advanced features of the BQ24167YFFR make it ideal for many power management applications. It can be found in many consumer electronic devices such as tablets, laptops, smartphones, UPS systems, and medical equipment. It is also well-suited for automotive applications such as electric vehicles (EVs) and hybrid electric vehicles (HEVs). In addition, it can also be used in industrial settings, such as solar and wind energy systems.

In summary, the BQ24167YFFR is a powerful and versatile three-stage battery charger and adapter, designed to provide the highest levels of flexibility, accuracy, and performance, while reducing current consumption and cost. Its advanced features and wide range of supported chemistries make it an excellent choice for a variety of power management applications.

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