The MCP1630RD-LIC2 is a MCP1630 low cost Li-Ion battery charger a complete stand alone constant current, constant voltage battery charger for single cell Li-Ion battery packs. Different battery chemistries (i.e. three NiMh or NiCd batteries connected in series) can be charged with minor modifications to the firmware. Multiple series cell Li-Ion battery packs can be charged with minor modifications to the hardware. This board utilises MCP1630 (high speed PIC MCU PWM MSOP8), MCP6292 (dUAL op-amp MSOP8), and PIC12F683 (Flash MCU SOIC8). The input voltage range for the demo board is 6V to 18V. The output is capable of charging at a fast charge rate of 2A constant current. An input terminal block is provided to apply the input voltage to the charger. An output header is also provided as a means to connect the external battery pack or simulated battery load. A programming header is available for updating the firmware contained in the PIC12F683.
Programmed parameters modified in firmware
Overvoltage protection (battery removed)
Over charge protection to prevent the battery from becoming dangerously overcharged
Over current protection in the event of a shorted battery
Over temperature protection to prevent the battery from reaching too high a temp during charge
Fast charge termination if the battery temperature is outside a preset window
The MCP1630 low cost Li-Ion battery charger has the flexibility to optimize the charging algorithm
