Microchip Power Management Development Kit Evaluation Board Battery Charger with MCP73871 Linear Li-Ion MCP73871DM-VPCC

Microchip MCP73871DM-VPCC is a performance-driven power management development kit featuring an evaluation board designed as a linear Li-Ion battery charger. This board integrates an advanced MCP73871 device to provide system power path management and load sharing control for optimized battery charging and power distribution.

The evaluation board emphasizes stable charging performance with a preset battery charge voltage of 4.2 V ± 0.5%, ensuring safe and accurate charging suitable for lithium-ion batteries. It supports constant current/constant voltage (CC/CV) charge algorithms and features resistor-programmed maximum charge current configurable at 1 A, paired with a termination threshold at 100 mA.

Integral system features include input current limit control hardware typically set at 1650 mA tailored for USB-High power sources, and three diagnostic LEDs provide real-time indication for charging status, battery charge level, and power good signals. The board includes factory preset safety timer functions along with a timer enable feature for additional operational security.

The design incorporates factory preconditioning current at 0.1C to safely charge deeply depleted cells. Thermal regulation is integrated internally to maintain system stability and protect the charger from overheating during extended operation. Automatic charge termination enhances battery lifespan by preventing overcharging scenarios.

Though temperature monitoring capability is included in the design, it is disabled by default. This evaluation kit is suitable for electronic, power management, and embedded system development applications requiring reliable battery charging and power distribution solutions.

This Microchip Evaluation Board is ideal for use in industrial controls, laboratory development, power electronics prototyping, and embedded system environments, providing a robust platform to evaluate MCP73871 charger functionality under varying load and charging conditions.

Features integrated system load sharing to optimize power distribution. Input current limit control hardware selected for typical 1650 mA USB-High input. Three LEDs indicate charge status, low battery, and power good signals.

Preset Li-Ion battery charge voltage at 4.2 V ± 0.5% for safe charging. Factory preset 0.1C preconditioning current and safety timer with enable feature. Constant Current / Constant Voltage (CC/CV) charge algorithm implementation.

Resistor programmed maximum charge current of 1 A and termination set point of 100 mA. Includes internal thermal regulation and automatic charge termination. Designed for system load sharing and standalone Li-Ion battery charging.

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