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    Analog Demo Boards > Battery Management > Li-Ion Battery Charger >
    • Evaluation Kit for MCP73831 500mA Linear Charge Management Controller
    • Evaluation Kit for MCP73831 500mA Linear Charge Management Controller


    The MCP73831 Evaluation Board is used to evaluate Microchip's MCP73831 in simple, stand-alone Li-Ion battery charging applications. The MCP73831 is a miniature single-cell, fully-integrated Li-Ion/Li-Polymer charge-management controller. Two circuit boards are provided in the MCP73831 Evaluation Kit for evaluation of various device options. Two evaluation boards are provided in the MCP73831 Evaluation Kit.

    The boards are set up to evaluate simple, stand-alone, linear charging of single cell Li-Ion/Li-Polymer battery packs (the battery packs are not included). Each board design provides constant current charging followed by constant voltage charging with automatic charge termination. In addition, the MCP73831-2AC board provides preconditioning of deeply depleted cells. Each board design provides evaluation of the MCP73831 in two package options: a SOT23-5 and a 2mmx3mm, 8-Lead DFN for higher power handling capability.

    Applications: Lithium-Ion/Lithium-Polymer Battery Chargers, Personal Data Assistants, Cellular Telephones, Digital Cameras, MP3 Players, Bluetooth Headsets, USB Chargers


    • Charge Voltage: 4.20V
    • Programmable Fast Charge Current up to 500 mA
    • Preconditioning of deeply depleted cells (MCP73831-2AC)
      • Preconditioning Threshold Voltage: 2.8V
      • Preconditioning Current: 10% of Programmed Fast Charge Current
    • No Preconditioning (MCP73831-2DC)
    • Automatic Charge Termination
      • Charge termination by minimum current in Constant Voltage Mode
      • Termination Current: 7.5% of Programmed Fast Charge Current
    • Automatic Recharge
      • Recharge Threshold Voltage: 4.05V
    • Charge Current Monitor for Fuel Gauging
    • Thermal Regulation
    • Reverse Discharge Protection
    • Evaluation in SOT23-5 Package
    • Evaluation in 2 mm x 3 mm, 8-Lead DFN package for higher power handling capability
    • Simple Stand-Alone Operation
    • Powered from external bench supply or voltage regulated wall cube
    • Surface-Mount Design
    • Fully Assembled and Tested

    Ships With

    • Two MCP73831 Evaluation Boards, 102-00085
    • Documents:
      • MCP73831 Evaluation Board User Guide, DS51596
      • MCP73831 Data Sheet, Miniature Single-Cell, Fully-Integrated Li-Ion, Li-Polymer Charge-Management Controller, DS21984
      • AN947, Power Management in Portable Applications: Charging Lithium-Ion/Lithium-Polymer Batteries, DS00947
      • AN971, USB Port-Powered Li-Ion/Li-Polymer Battery Charging, DS00971

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