MCP73828-4.2VUATR

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PMIC (Power Management Integrated Circuit) is an important device used to manage the power requirements of different electronic applications. PMICs provide safety and control of electrical loads by providing linear and convergent power in a stable state, making them ideal for devices such as mobile phones, computers and gaming systems. Battery chargers are a type of PMIC that are designed to provide continuous power supply to a battery, allowing it to last longer as well as optimize the input current, thereby reducing the possibility of overcharging or damage to the battery. The MCP73828-4.2VUATR is one such battery charger, designed to charge Li-Ion/Li-Polymer batteries from a single-cell with a variety of battery capacities.

The MCP73828-4.2VUATR consists of an adaptive linear linear battery charger powered by a USB supply, and a number of proprietary algorithms to identify the capacity of the battery and monitor its charging process for optimal performance. The adjustable input current, ranging from 100mA to 500mA, allows for easy adaptation to different types of Li-Ion and Li-Polymer batteries, and the internal power MOSFETs allow for efficient conversion and charging. Safety features such as thermal regulation, short-circuit protection and timer have been made into it to ensure high-accuracy and control, while offering a highly integrated solution with a small footprint.

In operation, the MCP73828-4.2VUATR begins charging the battery when the voltage of the source exceeds the level set for the charging voltage. Initially, a pre-charge and trickle charge are used to prepare and stabilize the battery, respectively. A continuously decreasing current regulation then ensures a smooth transition from trickle charging to constant current, ending when the current reaches a user programmed level. The charge voltage is then maintained at a fixed value, with a timer that will terminate charging if the time exceeds a certain number of hours. Upon completion, the charge voltage is maintained until the battery is fully discharged.

The MCP73828-4.2VUATR is a very versatile PMIC, and has a wide range of application fields. It is especially suitable for portable consumer electronics, medical equipment, and safety-critical applications such as portable communication systems, where reliability is of utmost importance. It can also be used in automotive and industrial applications, as well as in wireless charging systems. The device’s ability to quickly and safely recharge Li-Ion and Li-Polymer batteries with a high degree of accuracy at low cost makes it a great choice for these types of applications.

The MCP73828-4.2VUATR is a perfect example of the various advantages of PMICs, offering power conversion and control, reliability, low cost and a tiny footprint. It is an ideal choice for a wide range of applications, and will continue to be a major contributor to the success of battery-powered devices for many years to come.

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