MCHPMCP73871EV
Overview
The MCP73871EV is a demonstration and evaluation platform for the MCP73871 Li-Ion/Li-Polymer battery charge management controller. It features integrated system load sharing, allowing the device to power the system and charge a single-cell battery simultaneously from either an AC-DC adapter or a USB source. The board provides a practical implementation of a CC/CV charging algorithm with automatic charge termination and safety timers.
Why Choose This Part
The board demonstrates efficient load sharing which prioritizes the system load over the battery charging current to prevent overloading the input source. It includes thermal regulation and an exposed pad design for improved heat dissipation during high-current 1000mA fast charging. Engineers benefit from factory-preset safety features including a 6-hour safety timer and 0.1C preconditioning for deeply depleted cells.
Applications
Key Specifications
Getting Started
To evaluate the MCP73871, connect a 5V to 6V power source to the input terminals and a single-cell Li-Ion/Li-Pol battery to the battery header. Observe charging status via the on-board LEDs and monitor the system load output terminals to verify the power path management functionality. No external firmware is required as the MCP73871 is a stand-alone hardware-configured controller.
MCP7387 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Battery Pack Voltage | Stock |
|---|---|---|
| MCP73871EV (this part) | — | 9 |
| MCP73871-2CCI/ML | 4.2V | 4,988 |
| MCP73871-2AAI/ML | 4.2V | 1,967 |
| MCP73871T-1CCI/ML | 4.1V | 3,530 |
| MCP73871-2CAI/ML | 4.2V | 979 |
| MCP73871T-2CAI/ML (Microchip) | 4.2V | — |
| MCP73871T-4CAI/ML | 4.4V | 3,090 |
