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MP2661 Datasheet Battery Charger

Manufacturer: Monolithic Power Systems

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General Description

The MP2661 is a highly integrated, single-cell, lithium-ion (Li-ion) and lithium-polymer (Li-polymer) battery charger with system power path management for space-limited, portable applications.

The MP2661 uses input power from either an AC adapter or a USB port to supply the system load and charge the battery independently.

The charger

Overview

MP2661 4.65V System, 500mA, I2C-Controlled Battery Charger with Power Path Management for Single-Cell Li-Ion.

Key Features

  • constant current pre-charge (PRE. C), constant current (CC) fast charge, and constant voltage (CV) regulation, charge termination, and autorecharge. The power path management function ensures continuous power to the system by automatically selecting the input, the battery, or both to power the system. This power stage features a low dropout regulator from the input to the system and a 100mΩ switch from the battery to the system. Power path management separates the charging current from the system.

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