Microchip Technology MCP1630 User Manual
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Microchip Technology MCP1630 User Manual

Microchip Technology MCP1630 User Manual

Low-cost li-ion battery charger
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MCP1630 Low-Cost
Li-Ion Battery Charger
User's Guide
© 2005 Microchip Technology Inc.
DS51555A

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Summary of Contents for Microchip Technology MCP1630

  • Page 1 MCP1630 Low-Cost Li-Ion Battery Charger User’s Guide © 2005 Microchip Technology Inc. DS51555A...
  • Page 2 Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions.

  • Page 3: Table Of Contents

    Chapter 1. Product Overview ..................5 Introduction ....................5 What is the MCP1630 Low-Cost Li-Ion Battery Charger? ......6 What the MCP1630 Low-Cost Li-Ion Battery Charger Kit Includes ..6 Chapter 2. Installation and Operation ................7 Introduction ....................7 Features ....................
  • Page 4 MCP1630 Low-Cost Battery Charger User’s Guide NOTES: © 2004 Microchip Technology Inc. DS51555A-page iv...

  • Page 5: Preface

    Preface NOTICE TO CUSTOMERS All documentation becomes dated, and this manual is no exception. Microchip tools and documentation are constantly evolving to meet customer needs, so some actual dialogs and/or tool descriptions may differ from those in this document. Please refer to our web site (www.microchip.com) to obtain the latest documentation available.

  • Page 6: Conventions Used In This Guide

    MCP1630 Low-Cost Battery Charger User’s Guide CONVENTIONS USED IN THIS GUIDE This manual uses the following documentation conventions: DOCUMENTATION CONVENTIONS Description Represents Examples Arial font: ® Italic characters Referenced books MPLAB IDE User’s Guide Emphasized text ...is the only compiler...
  • Page 7 Preface RECOMMENDED READING This user's guide describes how to use MCP1630 Low-Cost Li-Ion Battery Charger. Other useful documents are listed below. The following Microchip documents are available and recommended as supplemental reference resources. MCP1630 Data Sheet, “High-Speed, Microcontroller-Adaptable, Pulse Width Modulator”, DS21896...
  • Page 8 Technical support is available through the web site at: http://support.microchip.com In addition, there is a Development Systems Information Line which lists the latest ver- sions of Microchip's development systems software products. This line also provides information on how customers can receive currently available upgrade kits.

  • Page 9: Chapter 1. Product Overview

    MCP1630 in a SEPIC power converter application. As provided, the MCP1630 Low-Cost Li-Ion Battery Charger is capable of charging a single-cell, Li-Ion battery pack from an input voltage of 6V to 18V. The MCP1630 Low-Cost Li-Ion Battery Charger provides a constant current, constant voltage charge with preconditioning, cell temperature monitoring and battery pack fault monitoring.

  • Page 10: What Is The Mcp1630 Low-Cost Li-Ion Battery Charger

    MCP1630 Low-Cost Battery Charger User’s Guide WHAT IS THE MCP1630 LOW-COST LI-ION BATTERY CHARGER? The MCP1630 Low-Cost Li-Ion Battery Charger is 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.

  • Page 11: Chapter 2. Installation And Operation

    External signals include the input oscillator, the reference voltage, the feedback voltage and the current sense. The output signal is a square-wave pulse. The power train used for the MCP1630 Low-Cost Li-Ion Battery Charger is a Single-Ended Primary Inductive Converter (SEPIC).

  • Page 12: Getting Started

    2.3.1.2 APPLY THE LOAD TO A BATTERY HEADER 1. To apply a load to the MCP1630 Low-Cost Li-Ion Battery Charger, the positive side of the load (B+) should be connected to pin 1 of J2. The negative side of the load (B-)should be connected to pin 5 of J2.
  • Page 13 Simulated Battery Load. 2.3.1.3 STATUS LED 1. The MCP1630 Low-Cost Li-Ion Battery Charger has an LED to indicate charge status or fault status. Table 2-1 represents the state of the LED during various states of the charge cycle. TABLE 2-1:...
  • Page 14 MCP1630 Low-Cost Battery Charger User’s Guide NOTES: © 2005 Microchip Technology Inc. DS51555A-page 10...

  • Page 15: Appendix A. Schematic And Layouts

    MCP1630 LOW-COST BATTERY CHARGER USER’S GUIDE Appendix A. Schematic and Layouts INTRODUCTION This appendix contains the following schematics and layouts for the MCP1630 Low-Cost Li-Ion Battery Charger. Diagrams included in this appendix: • Board Schematic • Board – Assembly Drawing •...

  • Page 16: Board Schematic

    MCP1630 Low-Cost Battery Charger User’s Guide BOARD SCHEMATIC © 2005 Microchip Technology Inc. DS51555A-page 12...

  • Page 17: Board - Assembly Drawing

    Schematic and Layouts BOARD – ASSEMBLY DRAWING © 2005 Microchip Technology Inc. DS51555A-page 13...

  • Page 18: Board - Top Overlay

    MCP1630 Low-Cost Battery Charger User’s Guide BOARD – TOP OVERLAY R20C12 Scale = 2:1 © 2005 Microchip Technology Inc. DS51555A-page 14...

  • Page 19: Board - Top Layer

    Schematic and Layouts BOARD – TOP LAYER Scale = 2:1 © 2005 Microchip Technology Inc. DS51555A-page 15...

  • Page 20: Board - Bottom Layer

    MCP1630 Low-Cost Battery Charger User’s Guide BOARD – BOTTOM LAYER Scale = 2:1 © 2005 Microchip Technology Inc. DS51555A-page 16...

  • Page 21: Appendix B. Bill-Of-Materials (Bom)

    422 kΩ, 1/10W, Chip Resistor, 0805 Panasonic-ECG ERJ-6ENF4223V R1,R2,R3,R4 0.22Ω, 1/4W, Chip Resistor, 1206 Panasonic-ECG ERJ-8RQFR22V ® 3.0A, 30V Schottky Diode, SMA Toshiba CMS01 (TE12L) Terminal Block, 2 Pos., 2.54mm, Phoenix Contact 1725656 TB254-2 © 2005 Microchip Technology Inc. DS51555A-page 17...
  • Page 22 MCP1630 Low-Cost Battery Charger User’s Guide NOTES: © 2005 Microchip Technology Inc. DS51555A-page 18...

  • Page 23: Appendix C. Evaluation Board Firmware

    MCP1630 LOW-COST BATTERY CHARGER USER’S GUIDE Appendix C. Evaluation Board Firmware DEVICE FIRMWARE For the latest copy of the MCP1630 Low-Cost Battery Charger User’s Guide firmware, visit our web site at www.microchip.com. Power-Up Initialize: Ports, Clocks, ADC, PWM, and Interrupts...

  • Page 24: Worldwide Sales And Service

    Tel: 765-864-8360 Fax: 886-3-572-6459 Fax: 765-864-8387 Los Angeles Mission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608 San Jose Mountain View, CA Tel: 650-215-1444 Fax: 650-961-0286 Toronto Mississauga, Ontario, Canada Tel: 905-673-0699 Fax: 905-673-6509 04/20/05 © 2005 Microchip Technology Inc. DS51555A-page 20...

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