MCP73871DM-VPCC is an MCP73871 based Demo Board with Voltage Proportional Current Control designed to demonstrate stand alone linear Li ion battery charger with system power path and load sharing management control solution. The MCP73871 integrates the required elements to meet design challenges when developing new Li ion / Li Polymer batteries powered products. The MCP73871 Demo Board with Voltage Proportional Current Control is designed to deliver minimum 1.5A total current to system load and to a single cell Li ion battery at 4.2V preset voltage regulation. The board has a dip switch helping to decides the input power source between AC to DC wall adapter and USB port (AC/USB) and control input current limits, enable charge timer and enable charging. The demo board comes with a factory preset low battery indicator (LBO) when input is absent. The preset value is 3.2V and STAT1 LED (green) with turn ON if the battery voltage is below the threshold voltage.
● Integrated system load sharing
● Input current limit control hardware selected
● Three LEDs to indicate charge status, low battery and power good signal
● Temperature monitoring (is disabled by default)
● Factory preset 0.1C preconditioning current of deeply depleted cells
● Factory preset safety timer with timer enable feature
● Constant Current/Constant Voltage (CC/CV) charge algorithm
● Automatic charge termination
● Automatic recharge
● Internal thermal regulation
