User ManualTable of ContentsPreface5Introduction5Document Layout5Conventions Used in this Guide6Recommended Reading7The Microchip Web Site7Customer Support7Document Revision History7Chapter 1. Product Overview91.1 Introduction91.2 What is the MCP73833 Li-Ion Battery Charger Evaluation Board?101.3 What the MCP73833 Evaluation Kit Includes10Chapter 2. Installation and Operation112.1 Introduction112.2 Features112.3 Getting Started12Appendix A. Schematic and Layouts15A.1 Introduction15A.2 Board Schematic16A.3 Board - Top Overlay17A.4 Board - Top Layer18A.5 Board - Bottom Layer19Appendix B. Bill Of Materials (BOM)21Worldwide Sales and Service22Size: 824 KBPages: 22Language: EnglishOpen manual
Data SheetTable of Contents1.0 Electrical Characteristics32.0 Typical Performance Curves7FIGURE 2-1: Battery Regulation Voltage (VBAT) vs. Supply Voltage (VDD).7FIGURE 2-2: Battery Regulation Voltage (VBAT) vs. Ambient Temperature (TA).7FIGURE 2-3: Output Leakage Current (IDISCHARGE) vs. Battery Regulation Voltage (VBAT).7FIGURE 2-4: Charge Current (IOUT) vs. Programming Resistor (RPROG).7FIGURE 2-5: Charge Current (IOUT) vs. Supply Voltage (VDD).7FIGURE 2-6: Charge Current (IOUT) vs. Supply Voltage (VDD).7FIGURE 2-7: Charge Current (IOUT) vs. Junction Temperature (TJ).8FIGURE 2-8: Charge Current (IOUT) vs. Junction Temperature (TJ).8FIGURE 2-9: Thermistor Bias Current (ITHRERM) vs. Supply Voltage (VDD).8FIGURE 2-10: Thermistor Bias Current (ITHRERM) vs. Ambient Temperature (TA).8FIGURE 2-11: Power Supply Ripple Rejection (PSRR).8FIGURE 2-12: Power Supply Ripple Rejection (PSRR).8FIGURE 2-13: Line Transient Response.9FIGURE 2-14: Line Transient Response.9FIGURE 2-15: Load Transient Response.9FIGURE 2-16: Load Transient Response.9FIGURE 2-17: Complete Charge Cycle (180 mA Li-Ion Battery).9FIGURE 2-18: Charge Cycle Start - Preconditioning (180 mAh Li-Ion Battery).93.0 Pin Descriptions11TABLE 3-1: Pin Function Table113.1 Battery Management Input Supply (VDD)113.2 Charge Status Outputs (STAT1, STAT2)113.3 Battery Management 0V Reference (VSS)113.4 Current Regulation Set (PROG)113.5 Power Good Indication (PG) MCP73833 Only113.6 Timer Enable Input (TE) MCP73834 Only113.7 Thermistor Input (THERM)113.8 Battery Charge Control Output (VBAT)113.9 Exposed Thermal Pad (EP)114.0 Functional Description13FIGURE 4-1: Flow Chart.134.1 Under Voltage Lockout (UVLO)144.2 Charge Qualification144.3 Preconditioning144.4 Constant Current - Fast Charge Mode144.5 Constant Voltage Mode144.6 Charge Termination144.7 Automatic Recharge154.8 Thermal Regulation15FIGURE 4-2: Thermal Regulation.154.9 Thermal Shutdown155.0 Detailed Description175.1 Analog Circuitry175.2 Digital Circuitry17TABLE 5-1: Status Outputs176.0 Applications19FIGURE 6-1: Typical Application Circuit.19FIGURE 6-2: Typical Charge Profile with Thermal Regulation (1700 mAh Li-Ion Battery).19FIGURE 6-3: Typical Charge Cycle Start with Thermal Regulation (1700 mAh Li-Ion Battery).196.1 Application Circuit Design196.2 PCB Layout Issues21FIGURE 6-4: Typical Layout (Top).21FIGURE 6-5: Typical Layout (Bottom).217.0 Packaging Information237.1 Package Marking Information23Size: 1.31 MBPages: 32Language: EnglishOpen manual
