The MCP73871EV is designed to demonstrate stand alone linear Li ion battery charger with system power path and load sharing management control solution. The highly integrated MCP73871 device has overcome the hurdles by including the required elements to meet the design challenges when developing new Li ion / Li Polymer battery powered products. The MCP73871 requires minimum external components to power the system load and charge single cell Li ion batteries independently. When input power is absent or insufficient, the Li ion battery becomes the primary power source or in help mode to support the required system load current. The board is developed to assist product designers in reducing product design cycle and time by utilizing favourite stand alone Li ion battery charger and system load sharing management controller.
Integrated system load sharing
Three LED indicators for charge status, low battery and power good signal
Input current limit control with dip switches between ac to dc adapter USB high, and USB low
Automatic charge termination
Automatic recharge
Internal thermal regulation
Temperature monitoring is disabled by default, but can be enabled to use with NTC thermistor
Exposed Pad with extra via underneath for better heat dissipations
Charge termination and automatic recharge features avoid constant charging Li ion batteries to prolong life of Li ion batteries while keeping their capacity at healthy level.
