MCP73841-420I/UN

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Today, there are different types of power management integrated circuits (PMIC) available in the market. These PMICs, such as MCP73841-420I/UN, provide an essential function of controlling the current and voltage from a power source to prevent the source from being damaged due to overload and to provide a consistent and reliable power supply for the devices. MCP73841-420I/UN is considered one of the best PMICs for battery chargers, making it an ideal solution for a variety of battery charging applications. This PMIC can support a wide range of loading conditions and feature a wide input voltage range and low quiescent current. The article will serve as a guide to rundown the application field and working principle of MCP73841-420I/UN.

Application field of MCP73841-420I/UN

MCP73841-420I/UN is a highly versatile PMIC that is suitable for both single-cell and multi-cell lithium-ion and lithium-polymer battery packs, as well as nickel-cadmium (NiCd) and nickel-metal hydride (NiMH) systems. It is available in two packages; one is the dual-channel package and the other one is a single-channel package. The single-channel package is designed for use in portable and standby applications, while the dual-channel package is designed for use in parallel charging applications.

The battery charger PMIC supports a wide range of input voltage levels and can be used with input sources ranging from a 5 V AC adapter to 7 V, 12 V, and 24 V (max) industrial sources. This wide input voltage range makes the MCP73841-420I/UN suitable for use in almost any charging application. In addition, the PMIC offers low quiescent current of 1.2 μA (typical), making it energy-efficient and suitable for battery-operated systems.

Working Principle of MCP73841-420I/UN

The working principle of MCP73841-420I/UN is quite simple: the incoming current from the power source is regulated by the PMIC and then transferred to the battery cell. The MCP73841-420I/UN technology relies on a unique circuit design that takes into account both the input source and the battery cell, providing more accurate sensing and control than traditional linear charging schemes. This allows the power source to be protected from overloads and the battery cells to be recharged in a safe and reliable manner.

The charging process begins with the power source being connected to the MCP73841-420I/UN input. The PMIC then senses the voltage level of the power source and determines the optimal charging parameters. Once the charging parameters have been determined, the PMIC applies the necessary current to the battery cells to re-charge them. The charging process is monitored and regulated by the PMIC until the battery cells reach a certain charge level. Once the battery cells reach the desired charge level, the PMIC discontinues the charging process and shuts off the input source.

Conclusion

The MCP73841-420I/UN is a highly efficient PMIC for battery chargers that offer wide input voltage range and low quiescent current. Its working principle is simple and effective, allowing it to provide an optimal and safe charging experience for battery cells. The MCP73841-420I/UN technology is an ideal solution for applications requiring an efficient, reliable and cost-effective charging solution.

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