MCP1630 SEPIC AUTOMOTIVE LED

DRIVER REFERENCE DESIGN

© 2011 Microchip Technology Inc.

DS51955A-page 3

Table of Contents

Preface ........................................................................................................................... 5

Introduction...............................................................................................................5

Document Layout .....................................................................................................5

Conventions Used in this Guide ...............................................................................6

Recommended Reading...........................................................................................7

The Microchip Web Site ...........................................................................................7

Customer Support ....................................................................................................7

Document Revision History

.................................................................................... 8

Chapter 1. Product Overview

1.1 Introduction ........................................................................................................9

1.2 Features ..........................................................................................................10

1.3 Device Summary .............................................................................................10

1.4 Technical Specifications ..................................................................................11

1.5 Functional Description .....................................................................................12

1.6 What the MCP1630 SEPIC Automotive LED Driver Reference Design

Kit Includes

......................................................................................................... 12

Chapter 2. Installation and Operation

2.1 Getting Started ................................................................................................13

2.2 Setup Procedure .............................................................................................13

2.3 Evaluating the Application ...............................................................................15

2.4 Firmware Description .......................................................................................15

2.5 Programming the PIC12F683 Microcontroller

............................................... 16

Appendix A. Schematic and Layouts

A.1 Introduction .....................................................................................................17

A.2 Board – Schematic ..........................................................................................18

A.3 Board – Top Copper and Pads .......................................................................19

A.4 Board – Top Copper Pads and Silk .................................................................20

A.5 Board – Top Silk and Pads .............................................................................21

A.6 Board – Bottom Copper and Pads

................................................................ 22

Appendix B. Bill of Materials (BOM)

Appendix C. Firmware Flowchart

C.1 MCP1630 SEPIC Automotive LED Driver Reference Design

Firmware Flowchart

............................................................................................ 25

Appendix D. Test Points and Waveforms

D.1 Test Points Description ...................................................................................27

D.2 Waveforms Examples

................................................................................... 28

Worldwide Sales and Service .................................................................................... 34