MCP73862-I/ML

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MCP73862-I/ML is a highly-integrated, battery-charge controller designed to charge cylindrical Lithium Ion (Li-Ion) and Lithium-Polymer (Li-Polymer) batteries from a constant-current/constant-voltage power source. The device is designed to provide a robust, efficient, and cost-effective solution for a wide range of single-cell Li-Ion/Li-Polymer battery-powered applications, including those used for mobile phones, digital still cameras, portable disk drivers, CD-ROM drives, and video & audio products.

MCP73862-I/ML belongs to PMIC- Battery Chargers, as it is designed to charge a Li-Ion or Li-Polymer battery. The device is highly integrated and includes the critical components needed to charge and manage the battery, such as voltage sense FETs, a voltage reference, and current sense amplifier. This allows the MCP73862-I/ML to provide a complete charging solution with minimal external components.

The MCP73862-I/ML is designed to charge Li-Ion/Li-Polymer batteries from a constant-current/constant-voltage power source. It features an adjustable charge current (up to 1.6A) and an adjustable charge voltage (4.20V) for charging the battery. It also features an adjustable charge termination current (2.5% of the nominal charge current), and a programmable timer for in-system thermal protection. The MCP73862-I/ML also offers cycle-by-cycle current limiting, selectable charge/discharge termination, and built-in thermal protection.

The working principal of MCP73862-I/ML can be divided into four steps: pre-charge, constant current stage, constant voltage stage, and charge termination. When a battery is inserted, the device detects the battery\'s voltage. If the voltage is below a preset threshold, the device enters pre-charge stage to bring the voltage up slowly. After the voltage reaches a threshold voltage, the MCP73862-I/ML enters the constant current stage. In this stage, the battery is charged at a constant current up to a set voltage. After the voltage reaches the set voltage, the device enters the constant voltage stage. During this stage, the battery is charged with a decreasing current, until the set current is reached. At this point, the charge is terminated and the device enters a low-power, standby mode.

To summarize, MCP73862-I/ML is a highly-integrated, battery-charge controller designed to charge cylindrical Li-Ion/Li-Polymer batteries. It is designed to provide a robust, efficient, and cost-effective solution for a wide range of single-cell Li-Ion/Li-Polymer battery-powered applications. The device is designed to charge from a constant-current/constant-voltage power source and features an adjustable charge current, voltage, and termination current. The device also features cycle-by-cycle current limiting, selectable charge/discharge termination, and built-in temperature protection. The working principal of the device consists of four stages: pre-charge, constant current stage, constant voltage stage, and charge termination. It is a great solution for Li-Ion/Li-Polymer battery-powered applications and is considered as one of the members of PMIC- Battery Chargers.

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