MCP7382XEV

The MCP7382X Evaluation Board is set-up to evaluate simple, stand-alone, linear charging of single cell Li-Ion battery packs. Each of the three Li-Ion battery chargers can be evaluated independently. The chargers provide controlled current charging followed by constant voltage charging. The MCP73826, U1, is provided in a 6-pin SOT23 package and is equipped with shutdown control. The MCP73827, U2, is provided in an 8-pin MSOP package. In addition to shutdown control, the MCP73827 signals when the charge cycle transitions from controlled current mode to constant voltage mode. An LED, D3, is illuminated during the controlled current mode. A voltage representation of the charge current, IMON, is provided for a host microcontroller to monitor the charge profile. The MCP73828, U3, is also provided in an 8-pin MSOP package. In addition to shutdown control, the MCP73828 signals when the charge current has diminished below ten percent of the peak charge current. An LED, D2, is illuminated indicating full charge. A thermistor input is provided to inhibit charging when the cell temperature is outside a pre-defined window.

• Evaluation of MCP73827/28 in 8-pin MSOP packages
• Evaluation of MCP73826 in 6-pin SOT-23 package
• Simple Stand-Alone Operation or Microcontroller Compatible
• Powered from external bench supply or voltage regulated wall cube
• Surface-Mount Design
• Fully Assembled and Tested