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- Page 1 MCP1631 Multi-Chemistry Battery Charger Reference Design © 2007 Microchip Technology Inc. DS51697A...
- Page 2 U.S.A. and other countries. and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No SQTP is a service mark of Microchip Technology Incorporated licenses are conveyed, implicitly or otherwise, under any in the U.S.A.
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Page 3: Table Of Contents
Customer Support ....................3 Document Revision History ................... 3 Chapter 1. Product Overview 1.1 Introduction ..................... 5 1.2 What is the MCP1631 Multi-Chemistry Battery Charger Reference Design? ................... 6 1.3 What the MCP1631 Multi-Chemistry Battery Charger Reference Design Kit includes ..............6 Chapter 2. - Page 4 MCP1631 Multi-Chemistry Battery Charger Reference Design NOTES: © 2007 Microchip Technology Inc. DS51697A-page iv...
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Page 5: Preface
• Customer Support • Document Revision History DOCUMENT LAYOUT This document describes how to use the MCP1631 Multi-Chemistry Battery Charger Reference Design. The manual layout is as follows: • Chapter 1. “Product Overview” – Important information about the MCP1631 Multi-Chemistry Battery Charger Reference Design. -
Page 6: Conventions Used In This Guide
MCP1631 Multi-Chemistry Battery Charger Reference Design 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: Recommended Reading
Preface RECOMMENDED READING This user's guide describes how to use MCP1631 Multi-Chemistry Battery Charger Reference Design. The following Microchip documents are available and recommended as supplemental reference resources. MCP1631 Data Sheet, “High-Speed, Microcontroller-Adaptable, Pulse Width Modulator”, DS22063 This data sheet provides detailed information regarding the MCP1631/MCP1631V, MCP1631HV and MCP1631VHV product family. - Page 8 MCP1631 Multi-Chemistry Battery Charger Reference Design NOTES: © 2007 Microchip Technology Inc. DS51697A-page 4...
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Page 9: Chapter 1. Product Overview
(Ni based chemistry) and constant current / constant voltage (Li-Ion) with preconditioning, cell temperature monitoring (Ni based) and battery pack fault monitoring. Also, the charger provides a status or fault indication. The MCP1631 Multi-Chemistry Battery Charger Reference Design automatically detects the insertion or removal of a battery pack. -
Page 10: What Is The Mcp1631 Multi-Chemistry Battery Charger Reference Design
- MCP1631 Data Sheet, “High-Speed, Microcontroller-Adaptable, Pulse Width Modulator”, (DS22063). - PIC16F883 Data Sheet, “8-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology”, (DS41291). - AN1137, Using the MCP1631 Family to Develop Low-Cost Battery Chargers, (DS01137) © 2007 Microchip Technology Inc. DS51697A-page 6... -
Page 11: Chapter 2. Installation And Operation
• Charge 1 to 4 Cells of NiMH or NiCd Batteries in Series • Select Chemistry and Cells using push-buttons • ON/OFF switch • Charge Status Indication • Programmable Charge Profile • OV Shutdown (2.0V / Cell for NiMH/NiCd or 4.4V/Cell for Li-Ion) © 2007 Microchip Technology Inc. DS51697A-page 7... -
Page 12: Getting Started
MCP1631 Multi-Chemistry Battery Charger Reference Design GETTING STARTED The MCP1631HV Multi-Chemistry Battery Charger is fully assembled and tested for charging one or two series Li-Ion Batteries or one to four series cell NiMH or NiCd bat- teries. The charge termination for Li-Ion is based a percentage of fast charge current, the charge termination for NiMH is based on a negative voltage change versus time or positive temperature change versus time. - Page 13 2. Connect the positive side of the input source (+) to pin 1 of J1. Connect the negative or return side (-) of the input source to pin 2 of J1. Refer to Figure 2-3. © 2007 Microchip Technology Inc. DS51697A-page 9...
- Page 14 MCP1631 Multi-Chemistry Battery Charger Reference Design FIGURE 2-3: Setup Configuration Diagram. 2.3.1.2 APPLYING A LOAD TO THE MCP1631HV MULTI-CHEMISTRY BATTERY CHARGER 1. To apply a load (battery pack), to the MCP1631HV Multi-Chemistry Battery Charger, the positive side of the battery pack (B+) should be connected to pin 1 of J2.
- Page 15 For single cell Li-Ion, a 3,600 mA-Hr. battery with internal protection circuitry is recommended for evaluation. For NiMH charge cycle, Panasonic HHR-210AA/B2B batteries were used to develop the -dV/dt and +dT/dt ter- mination methods. © 2007 Microchip Technology Inc. DS51697A-page 11...
- Page 16 MCP1631 Multi-Chemistry Battery Charger Reference Design 2.3.1.4 STATUS LED 1. The MCP1631HV Multi-Chemistry Battery Charger has an LED to indicate charge status or fault status. Table 2-1 represents the state of the Satus LED dur- ing various states of the charge cycle.
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Page 17: Appendix A. Schematic And Layouts
BATTERY CHARGER REFERENCE DESIGN Appendix A. Schematic and Layouts INTRODUCTION This appendix contains the following schematics and layouts for the MCP1631 Multi-Chemistry Battery Charger Reference Design: • Board Schematic • Board – Top Silk Layer • Board – Top Metal Layer •... -
Page 18: Board - Schematic
MCP1631 Multi-Chemistry Battery Charger Reference Design BOARD – SCHEMATIC © 2007 Microchip Technology Inc. DS51697A-page 14... -
Page 19: Board - Top Silk Layer
Schematic and Layouts BOARD – TOP SILK LAYER © 2007 Microchip Technology Inc. DS51697A-page 15... -
Page 20: Board - Top Metal Layer
MCP1631 Multi-Chemistry Battery Charger Reference Design BOARD – TOP METAL LAYER © 2007 Microchip Technology Inc. DS51697A-page 16... -
Page 21: Board - Mid1 Metal Layer
Schematic and Layouts BOARD – MID1 METAL LAYER © 2007 Microchip Technology Inc. DS51697A-page 17... -
Page 22: Board - Mid2 Metal Layer
MCP1631 Multi-Chemistry Battery Charger Reference Design BOARD – MID2 METAL LAYER © 2007 Microchip Technology Inc. DS51697A-page 18... -
Page 23: Board - Bottom Metal Layer
Schematic and Layouts BOARD – BOTTOM METAL LAYER © 2007 Microchip Technology Inc. DS51697A-page 19... - Page 24 MCP1631 Multi-Chemistry Battery Charger Reference Design NOTES: © 2007 Microchip Technology Inc. DS51697A-page 20...
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Page 25: Appendix B. Bill Of Materials (Bom)
CONN HEADER 5POS .100 VERT TIN Molex Electronics 22-03-2051 CONN HEADER 3POS .100 VERT TIN Molex Electronics 22-23-2031 INDUCT/XFRMR SHIELD DL 10UH Coiltronics/Div of DRQ127-100-R Cooper/Bussmann RoHS Compliant Bare PCB, MCP1631 — 104-00145 Multi-Chemistry Charger ® HEX/MOS N-CHAN 30V 8.3A 8SOIC International Rectifier IRF7807VTRPBF R1, R10, R11 RES 1.00K OHM 1/8W 1% 0805 SMD... - Page 26 MCP1631 Multi-Chemistry Battery Charger Reference Design TABLE B-1: BILL OF MATERIALS (BOM) (CONTINUED) Reference Description Manufacturer Part Number RES 100K OHM 1/8W 1% 0805 SMD Panasonic - ECG ERJ-6ENF1003V DO NOT POPULATE SMT0805 — — RESISTOR RES 15.0K OHM 1/8W 1% 0805 SMD...
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Page 27: Appendix C. Demo Board Firmware
MCP1631 MULTI-CHEMISTRY BATTERY CHARGER REFERENCE DESIGN Appendix C. Demo Board Firmware DEVICE FIRMWARE FLOWCHART PAGE 1 For the latest copy of the MCP1631 Multi-Chemistry Battery Charger Reference Design firmware, visit our web site at www.microchip.com. START Initialize Ports, Is BATT ADC, PWM, etc. -
Page 28: Worldwide Sales And Service
Fax: 86-757-2839-5571 Fax: 886-2-2508-0102 Toronto China - Wuhan Thailand - Bangkok Mississauga, Ontario, Tel: 86-27-5980-5300 Tel: 66-2-694-1351 Canada Fax: 86-27-5980-5118 Fax: 66-2-694-1350 Tel: 905-673-0699 China - Xian Fax: 905-673-6509 Tel: 86-29-8833-7252 Fax: 86-29-8833-7256 10/05/07 © 2007 Microchip Technology Inc. DS51697A-page 24...
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