The MCP73871 device is a 1A fully integrated linear solution for system load sharing and Li-Ion / Li-Polymer battery charge management with AC-DC wall adapter and USB port power sources selection. It’s also capable of autonomous power source selection between input or battery. The MCP73871 device employs a constant current/constant voltage (CC/CV) charge algorithm with selectable charge termination point. The constant voltage regulation is fixed with four available options: 4.10V, 4.20V, 4.35V, or 4.40V.
Features:
- Integrated System Load Sharing and Battery Charge Management
- Simultaneously Power the System and Charge the Li-Ion Battery
- Integrated Pass Transistors
- Integrated Current Sense
- Integrated Reverse Discharge Protection
- Selectable Input Power Sources: USB Port or AC-DC Wall
Adapter - Preset High Accuracy Charge Voltage Options:4.10V, 4.20V, 4.35V or 4.40V
- ±0.5% Regulation Tolerance
- Maximum 1.8A Total Input Current Control
- Resistor Programmable Fast Charge Current Control: 50 mA to 1A
