MCP73834-FCI/UN

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PMIC - Battery Chargers have become an integral part of many electronic devices. The MCP73834-FCI/UN is a popular micro-power device that provides a simple, cost-effective solution for charging single-cell lithium-ion (Li-ion) and lithium-polymer (Li-Poly) batteries.

The MCP73834-FCI/UN is a pre-programmed lithium-ion and lithium-polymer battery charger IC with integrated switch-mode power management and safety features. It integrates all the necessary features to support a wide range of battery charge management applications. The device has a maximum charging current of 2A and a wide input voltage range from 4.2 V to 5.5 V, making it suitable for USB or AC adapter applications.

The MCP73834-FCI/UN supports three operation modes: constant-current/constant-voltage (CC/CV) operation, temperature-controlled charging, and automatic recharge. The device also provides an internal temperature sensor, an exact current output, a tight voltage tolerance, and a comprehensive set of safety features.

The MCP73834-FCI/UN is an excellent choice for a variety of battery-backed applications, such as backup systems, consumer electronics, medical equipment, and battery maintenance systems. Its low quiescent current, low standby power consumption, and programmable feature set make it ideal for low power, portable applications.

Its switch-mode power supply and internal MOSFETs enable the device to efficiently manage the battery charging process. At the start of the charging process, the switching action is between two separate operation phases: constant current mode and constant voltage mode. The device supports automatic recharge after the battery has been fully charged, thereby maintaining the battery charge level.

The device also features an internal temperature sense to control the output current and to prevent the battery from becoming too hot during charging. It also offers an adjustable current and voltage set-point and automatic safety features, such as over-current, over-voltage and short-circuit protection.

The MCP73834-FCI/UN is an easy to use, high-efficiency battery charger IC that provides a simple yet feature-rich solution for battery charging applications. Its wide input voltage range and programmable feature set make it suitable for a wide range of applications, including lithium-ion, lithium-polymer and other chemical batteries.

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