Data SheetTable of Contents1.0 Electrical Characteristics62.0 Typical Performance Curves8FIGURE 2-1: Input Quiescent Current vs. Input Voltage.8FIGURE 2-2: Input Quiescent Current vs. Input Voltage.8FIGURE 2-3: Error Amplifier Frequency Response.8FIGURE 2-4: Error Amplifier Input Bias Current vs. Input Voltage.8FIGURE 2-5: Error Amplifier Sink Current vs. Input Voltage.8FIGURE 2-6: Error Amplifier Source Current vs. Input Voltage.8FIGURE 2-7: VEXT Rise Time vs. Input Voltage.9FIGURE 2-8: VEXT Fall Time vs. Input Voltage.9FIGURE 2-9: Current Sense to VEXT Delay vs. Input Voltage (MCP1630).9FIGURE 2-10: Current Sense Clamp Voltage vs. Input Voltage (MCP1630).9FIGURE 2-11: Undervoltage Lockout vs. Temperature.9FIGURE 2-12: EXT Output N-channel RDSON vs. Input Voltage.9FIGURE 2-13: EXT Output P-channel RDSON vs. Input Voltage.10FIGURE 2-14: Error Amplifier Input Offset Voltage vs. Input Voltage.10FIGURE 2-15: Error Amplifier Input Offset Voltage vs. Input Voltage.10FIGURE 2-16: Current Sense Common Mode Input Voltage Range vs. Input Voltage (MCP1630V).10FIGURE 2-17: Current Sense to VEXT Delay vs. Input Voltage (MCP1630V).103.0 MCP1630 Pin Descriptions11TABLE 3-1: pin function table113.1 Error Amplifier Output Pin (COMP)113.2 Error Amplifier Inverting Input (FB)113.3 Current Sensing Input (CS)113.4 Oscillator Input (OSC)113.5 Ground (GND)113.6 External Driver Output Pin (VEXT)113.7 Input Bias Pin (VIN)113.8 Reference Voltage Input (VREF)114.0 Detailed Description124.1 Device Overview124.2 PWM124.3 Normal Cycle by Cycle Control124.4 Error Amp/Comparator Current Limit Function124.5 0% Duty Cycle Operation124.6 Undervoltage Lockout (UVLO)134.7 Overtemperature Protection13FIGURE 4-1: Cycle-by-Cycle Timing Diagram (MCP1630).14FIGURE 4-2: Cycle-by-Cycle Timing Diagram (MCP1630V).155.0 Application Circuits/Issues165.1 Typical Applications165.2 NiMH Battery Charger Application165.3 Bidirectional Power Converter165.4 Multiple Output Converters166.0 Packaging Information176.1 Package Marking Information17Corporate Office26Atlanta26Boston26Chicago26Cleveland26Fax: 216-447-064326Dallas26Detroit26Indianapolis26Toronto26Fax: 852-2401-343126Australia - Sydney26China - Beijing26China - Shanghai26India - Bangalore26Korea - Daegu26Korea - Seoul26Singapore26Taiwan - Taipei26Fax: 43-7242-2244-39326Denmark - Copenhagen26France - Paris26Germany - Munich26Italy - Milan26Spain - Madrid26UK - Wokingham26Worldwide Sales and Service26Size: 345 KBPages: 26Language: EnglishOpen manual
Data SheetTable of ContentsPreface5Introduction5Document Layout5Conventions Used in this Guide6Recommended Reading7The Microchip Web Site7Customer Support7Document Revision History8Chapter 1. Product Overview91.1 Introduction91.2 What is the MCP1630 Low Cost NiMH Battery Charger Reference Design?101.3 What the MCP1630 Low Cost NiMH Battery Charger Reference Design 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 Silk Layer17A.4 Board – Top Metal Layer18A.5 Board – Bottom Metal Layer19Appendix B. Bill Of Materials (BOM)21Appendix C. Demo Board Firmware23C.1 Device Firmware Flowchart - Page 123C.2 Device Firmware Flowchart - Page 224Worldwide Sales and Service26Size: 801 KBPages: 26Language: EnglishOpen manual
