MCP73827-4.2VUA

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The MCP73827-4.2VUA is one of the most popular battery chargers in the PMIC (Power Management Integrated Circuit) market. It is a highly efficient, single-cell linear charger for use with 2.7V to 4.2V Li-Ion batteries, and provides the user with the highest levels of safety and stability. The device features over-voltage protection and over-current protection, and is designed to accept input power from USB or DC sources.

The device is suitable for a variety of application fields which require a battery charger, such as portable medical devices, Wireless Sensor Networks (WSNs), PDAs, and many other small industries. It can be used in automotive, industrial, and consumer applications.

The MCP73827-4.2VUA utilizes a Constant-Voltage/Constant-Current (CVCC) control architecture, and offers 100% duty cycle operation for maximum efficiency and lowest power dissipation. The device automatically adjusts its output voltage to maintain a constant output current even when an over-current occurs. It is also capable of charging high-rate battery packs. The device is protected against input over-voltage, input over-current and output over-current conditions.

In addition, the MCP73827-4.2VUA also has several unique features to ensure stable operation and make the device suitable for use in space-constrained applications. It has an adjustable charge current limit and adjustable charge termination, as well as a float charge voltage. The device also has an exact short circuit protection that prevents short circuit current pulses from damaging the battery cells.

The charge current range of the MCP73827-4.2VUA is adjustable from 200 mA up to 2 A. The device also has a temperature monitor that can detect low battery temperature and automatically reduce the charging current to prevent battery over-charging. Additionally, it has an open-drain status pin that can indicate whether the battery is in pre-charge, constant-current, float voltage, or charge termination states.

The MCP73827-4.2VUA is a highly efficient, low power linear charger for use in a wide range of applications. It offers superior safety, reliability and high efficiency performance. Its flexible design makes it suitable for use in a wide range of devices, and its comprehensive safety features make it the ideal choice for charging Li-Ion batteries.

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