Microchip Technology MCP1630 NiMH User Manual Download

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2005 Microchip Technology Inc.

DS51555A

MCP1630 Low-Cost

Li-Ion Battery Charger

User’s Guide

Summary of Contents for MCP1630 NiMH

Page 1: ... 2005 Microchip Technology Inc DS51555A MCP1630 Low Cost Li Ion Battery Charger User s Guide ...

Page 2: ...ll other trademarks mentioned herein are property of their respective companies 2005 Microchip Technology Incorporated Printed in the U S A All Rights Reserved Printed on recycled paper Note the following details of the code protection feature on Microchip devices Microchip products meet the specification contained in their particular Microchip Data Sheet Microchip believes that its family of prod...

Page 3: ...w Cost Li Ion Battery Charger Kit Includes 6 Chapter 2 Installation and Operation 7 2 1 Introduction 7 2 2 Features 7 2 3 Getting Started 8 Appendix A Schematic and Layouts 11 A 1 Introduction 11 A 2 Board Schematic 12 A 3 Board Assembly Drawing 13 A 4 Board Top Overlay 14 A 5 Board Top Layer 15 A 6 Board Bottom Layer 16 Appendix B Bill Of Materials BOM 17 Appendix C Evaluation Board Firmware 19 C...

Page 4: ...MCP1630 Low Cost Battery Charger User s Guide DS51555A page iv 2004 Microchip Technology Inc NOTES ...

Page 5: ...e demo board Appendix A Schematic and Layouts Shows the schematic and layout diagrams for the MCP1630 Low Cost Li Ion Battery Charger Appendix B Bill Of Materials BOM Lists the parts used to build the MCP1630 Low Cost Li Ion Battery Charger Appendix C Evaluation Board Firmware Provides information about the application firmware and where the source code can be found NOTICE TO CUSTOMERS All documen...

Page 6: ...rlined italic text with right angle bracket A menu path File Save Bold characters A dialog button Click OK A tab Click the Power tab Text in angle brackets A key on the keyboard Press Enter F1 Courier font Plain Courier Sample source code define START Filenames autoexec bat File paths c mcc18 h Keywords _asm _endasm static Command line options Opa Opa Bit values 0 1 Constants 0xFF A Italic Courier...

Page 7: ...S41211 This data sheet provides detailed information regarding the PIC12F683 product family THE MICROCHIP WEB SITE Microchip provides online support via our web site at www microchip com This web site is used as a means to make files and information easily available to customers Accessible by using your favorite Internet browser the web site contains the following information Product Support Data ...

Page 8: ...ilable to help customers A listing of sales offices and locations is included in the back of this document 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 ...

Page 9: ...t Li Ion Battery Charger provides a constant current constant voltage charge with preconditioning cell temperature monitoring and battery pack fault monitoring Also the charger provides a status or fault indication The MCP1630 Low Cost Li Ion Battery Charger automatically detects the insertion or removal of a battery pack This chapter covers the following topics What is the MCP1630 Low Cost Li Ion...

Page 10: ...nge for the demo board is 6V to 18V The output is capable of charging at a fast charge rate of 2A contant current An input terminal block is provided to apply the input voltage to the charger An output header is also provided as a means to connect the external battery pack or simulated battery load A programming header is available for updating the firmware contained in the PIC12F683 1 3 WHAT THE ...

Page 11: ...ow Cost Li Ion Battery Charger has the following features Programmed parameters modified in firmware Factory Settings Preconditioning Charge Current 200 mA Preconditioning Threshold 3 V Constant Current Fast Charge 2 A Constant Voltage Charge 4 2 V Charge Termination Threshold 100 mA Overvoltage protection battery removed Overcharge protection to prevent damaging the battery Overcurrent protection...

Page 12: ...tion Diagram 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 Care should be taken when using electronic loads or ground referenced loads 2 A thermistor referenced to B in the battery pack should be utilized...

Page 13: ...various states of the charge cycle 2 3 1 4 PROGRAMMING Header J3 is provided for in system circuit programming TABLE 2 1 STATUS OUTPUT CHARGE CYCLE STATE LED Qualification OFF Preconditioning ON Constant Current Fast Charge ON Constant Voltage ON Charge Complete OFF Safety Timer Fault Flashing 2 Hz 50 duty cycle Cell Temperature Invalid Flashing 1 Hz 50 duty cycle Battery Disconnected OFF Input Po...

Page 14: ...MCP1630 Low Cost Battery Charger User s Guide DS51555A page 10 2005 Microchip Technology Inc NOTES ...

Page 15: ...e 11 Appendix A Schematic and Layouts A 1 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 Board Top Overlay Board Top Layer Board Bottom Layer ...

Page 16: ...MCP1630 Low Cost Battery Charger User s Guide DS51555A page 12 2005 Microchip Technology Inc A 2 BOARD SCHEMATIC 3 1 2 A K 5 8 3 4 6 7 1 2 A K 2 1 3 A 3 GND 1 OUT 2 IN 6 7 5 A ...

Page 17: ...5 Microchip Technology Inc DS51555A page 13 A 3 BOARD ASSEMBLY DRAWING C1 U2 C6 R7 R19 R18 R20C12 R8 R15 C7 C8 C13 R10 C14 C4 J3 U1 R1 R4 R17 D2 C9 R12 C5 R16 J1 C11 R6 R21 Q2 R9 R14 C3 C2 L1 R3 R2 J2 R13 R11 C10 R5 U3 U4 D1 Q1 ...

Page 18: ...Guide DS51555A page 14 2005 Microchip Technology Inc A 4 BOARD TOP OVERLAY Scale 2 1 C1 U2 C6 R7 R19 R18 R20C12 R8 R15 C7 C8 C13 R10 C14 C4 J3 U1 R1 R4 R17 D2 C9 R12 C5 R16 J1 C11 R6 R21 Q2 R9 R14 C3 C2 L1 R3 R2 J2 R13 R11 C10 R5 U3 U4 D1 Q1 ...

Page 19: ...Schematic and Layouts 2005 Microchip Technology Inc DS51555A page 15 A 5 BOARD TOP LAYER Scale 2 1 ...

Page 20: ...MCP1630 Low Cost Battery Charger User s Guide DS51555A page 16 2005 Microchip Technology Inc A 6 BOARD BOTTOM LAYER Scale 2 1 ...

Page 21: ...480IM3 5 0 1 U3 PWM Building Block MSOP8 Microchip Technology Inc MCP1630 E MS 1 U2 Dual Operational Amplifier 10MHz MSOP8 Microchip Technology Inc MCP6292 E MS 1 Q1 N Channel MOSFET SOIC8 International Rectifier IRF7807V 1 Q2 N Channel MOSFET SOT23 Fairchild NDS7002A 1 U4 8 Bit FLASH MCU SOIC8 Microchip Technology Inc PIC12F683 I SN 5 R7 R9 R10 R17 R21 1 00 kΩ 1 10W Chip Resistor 0805 Panasonic E...

Page 22: ...MCP1630 Low Cost Battery Charger User s Guide DS51555A page 18 2005 Microchip Technology Inc NOTES ...

Page 23: ...on LED Start PWM Current 200 mA Fast Charge Reset Timers Control Current to Maintain 4 2V Max Current 2A Temperature Fault Suspend Charge Flash LED Timer expired Is battery present Is battery 3V Is Battery present Is Current 100 mA Is Battery 4 0V Yes No Timer expired No No No Yes No No Yes No No Yes Yes Yes Yes Yes Yes Yes Charge Fault Terminate Charge Flash LED Temp Out of Range No Is battery pr...

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