Microchip Technology MCP1642B Manuel utilisateur

2015 Microchip Technology Inc. DS50002353A

MCP1642B/D

High-Current

Synchronous Boost Converter

Evaluation Board

User’s Guide

DS50002353A-page 2 2015 Microchip Technology Inc.

Information contained in this publication regarding device

applications and the like is provided only for your convenience

and may be superseded by updates. It is your responsibility to

ensure that your application meets with your specifications.

MICROCHIP MAKES NO REPRESENTATIONS OR

WARRANTIES OF ANY KIND WHETHER EXPRESS OR

IMPLIED, WRITTEN OR ORAL, STATUTORY OR

OTHERWISE, RELATED TO THE INFORMATION,

INCLUDING BUT NOT LIMITED TO ITS CONDITION,

QUALITY, PERFORMANCE, MERCHANTABILITY OR

FITNESS FOR PURPOSE. Microchip disclaims all liability

arising from this information and its use. Use of Microchip

devices in life support and/or safety applications is entirely at

the buyer’s risk, and the buyer agrees to defend, indemnify and

hold harmless Microchip from any and all damages, claims,

suits, or expenses resulting from such use. No licenses are

conveyed, implicitly or otherwise, under any Microchip

intellectual property rights.

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 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.

• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our

knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data

Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

• Microchip is willing to work with the customer who is concerned about the integrity of their code.

• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not

mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our

products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts

allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Microchip received ISO/TS-16949:2009 certification for its worldwide

headquarters, design and wafer fabrication facilities in Chandler and

Tempe, Arizona; Gresham, Oregon and design centers in California

and India. The Company’s quality system processes and procedures

are for its PIC®MCUs and dsPIC®DSCs, KEELOQ®code hopping

devices, Serial EEPROMs, microperipherals, nonvolatile memory and

analog products. In addition, Microchip’s quality system for the design

and manufacture of development systems is ISO 9001:2000 certified.

QUALITY MANAGEMENT S

YSTEM

CERTIFIED BY DNV

== ISO/TS 16949 ==

Trademarks

The Microchip name and logo, the Microchip logo, dsPIC,

FlashFlex, flexPWR, JukeBlox, KEELOQ, KEELOQ logo, Kleer,

LANCheck, MediaLB, MOST, MOST logo, MPLAB,

OptoLyzer, PIC, PICSTART, PIC32 logo, RightTouch, SpyNIC,

SST, SST Logo, SuperFlash and UNI/O are registered

trademarks of Microchip Technology Incorporated in the

U.S.A. and other countries.

The Embedded Control Solutions Company and mTouch are

registered trademarks of Microchip Technology Incorporated

in the U.S.A.

Analog-for-the-Digital Age, BodyCom, chipKIT, chipKIT logo,

CodeGuard, dsPICDEM, dsPICDEM.net, ECAN, In-Circuit

Serial Programming, ICSP, Inter-Chip Connectivity, KleerNet,

KleerNet logo, MiWi, MPASM, MPF, MPLAB Certified logo,

MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code

Generation, PICDEM, PICDEM.net, PICkit, PICtail,

RightTouch logo, REAL ICE, SQI, Serial Quad I/O, Total

Endurance, TSHARC, USBCheck, VariSense, ViewSpan,

WiperLock, Wireless DNA, and ZENA are trademarks of

Microchip Technology Incorporated in the U.S.A. and other

countries.

SQTP is a service mark of Microchip Technology Incorporated

in the U.S.A.

Silicon Storage Technology is a registered trademark of

Microchip Technology Inc. in other countries.

GestIC is a registered trademarks of Microchip Technology

Germany II GmbH & Co. KG, a subsidiary of Microchip

Technology Inc., in other countries.

All other trademarks mentioned herein are property of their

respective companies.

ISBN: 978-1-63277-200-8

2015 Microchip Technology Inc. DS50002353A-page 3

Object of Declaration: MCP1642B/D High-Current Synchronous Boost Converter Evaluation Board

MCP1642B/D High-Current Synchronous Boost Converter Evaluation Board User’s Guide

DS50002353A-page 4 2015 Microchip Technology Inc.

NOTES:

MCP1642B/D HIGH-CURRENT

SYNCHRONOUS BOOST CONVERTER

EVALUATION BOARD USER’S GUIDE

2015 Microchip Technology Inc. DS50002353A-page 5

Table of Contents

Preface ...........................................................................................................................7

Introduction............................................................................................................ 7

Document Layout .................................................................................................. 7

Conventions Used in this Guide ............................................................................ 8

Recommended Reading........................................................................................ 9

The Microchip Web Site ........................................................................................ 9

Customer Support ................................................................................................. 9

Document Revision History ................................................................................... 9

Chapter 1. Product Overview

1.1 Introduction ................................................................................................... 11

1.2 MCP1642B/D short overview ....................................................................... 11

1.3 What is the MCP1642B/D High-Current Synchronous Boost Converter

Evaluation Board? .................................................................................. 12

1.4 Contents of the MCP1642B/D High-Current Synchronous Boost Converter

Evaluation Board .................................................................................... 12

Chapter 2. Installation and Operation

2.1 Introduction ................................................................................................... 13

2.1.1 Battery Considerations .............................................................................. 14

2.1.2 MCP1642B/D High-Current Synchronous Boost Converter Evaluation

Board Features ...................................................................................... 14

2.2 Getting Started ............................................................................................. 16

2.2.1 Power Input and Output Connection ......................................................... 16

Appendix A. Schematic and Layouts

A.1 Introduction .................................................................................................. 19

A.2 Board – Schematic ....................................................................................... 20

A.3 Board – Top Silk and Pads .......................................................................... 21

A.4 Board – Top Copper and Silk ....................................................................... 22

A.5 Board – Top Copper .................................................................................... 23

A.6 Board – Bottom Copper ............................................................................... 24

Appendix B. Bill of Materials (BOM)

Worldwide Sales and Service ....................................................................................27

MCP1642B/D High-Current Synchronous Boost Converter Evaluation Board User’s Guide

DS50002353A-page 6 2015 Microchip Technology Inc.

NOTES:

MCP1642B/D HIGH-CURRENT

SYNCHRONOUS BOOST CONVERTER

EVALUATION BOARD USER’S GUIDE

2015 Microchip Technology Inc. DS50002353A-page 7

Preface

INTRODUCTION

This chapter contains general information that will be useful to know before using the

MCP1642B/D High-Current Synchronous Boost Converter Evaluation Board. Items

discussed in this chapter include:

• Document Layout

• Conventions Used in this Guide

• Recommended Reading

• The Microchip Web Site

• Customer Support

• Document Revision History

DOCUMENT LAYOUT

This document describes how to use the MCP1642B/D High-Current Synchronous

Boost Converter Evaluation Board as a development tool. The manual layout is as

follows:

•Chapter 1. “Product Overview” – Important information about the MCP1642B/D

High-Current Synchronous Boost Converter Evaluation Board.

•Chapter 2. “Installation and Operation” – Includes instructions on how to get

started with this user’s guide and a description of the user’s guide.

•Appendix A. “Schematic and Layouts” – Shows the schematic and layout

diagrams for the MCP1642B/D High-Current Synchronous Boost Converter

Evaluation Board.

•Appendix B. “Bill of Materials (BOM)” – Lists the parts used to build the

MCP1642B/D High-Current Synchronous Boost Converter Evaluation Board.

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.

Documents are identified with a “DS” number. This number is located on the bottom of each

page, in front of the page number. The numbering convention for the DS number is

“DSXXXXXXXXA”, where “XXXXXXXX” is the document number and “A” is the revision level

of the document.

For the most up-to-date information on development tools, see the MPLAB®IDE online help.

Select the Help menu, and then Topics to open a list of available online help files.

MCP1642B/D High-Current Synchronous Boost Converter Evaluation Board User’s Guide

DS50002353A-page 8 2015 Microchip Technology Inc.

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...

Initial caps A window the Output window

A dialog the Settings dialog

A menu selection select Enable Programmer

Quotes A field name in a window or

dialog

“Save project before build”

Underlined, italic text with

right angle bracket

A menu path File>Save

Bold characters A dialog button Click OK

A tab Click the Power tab

N‘Rnnnn A number in verilog format,

where N is the total number of

digits, R is the radix and n is a

digit.

4‘b0010, 2‘hF1

Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>

Courier New font:

Plain Courier New 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 New A variable argument file.o, where file can be

any valid filename

Square brackets [ ] Optional arguments mcc18 [options] file

[options]

Curly brackets and pipe

character: { | }

Choice of mutually exclusive

arguments; an OR selection

errorlevel {0|1}

Ellipses... Replaces repeated text var_name [,

var_name...]

Represents code supplied by

user

void main (void)

{ ...

}

Preface

2015 Microchip Technology Inc. DS50002353A-page 9

RECOMMENDED READING

This user’s guide describes how to use the MCP1642B/D High-Current Synchronous

Boost Converter Evaluation Board. Other useful documents are listed below. The

following Microchip documents are available and recommended as supplemental

reference resources.

• MCP1642B/D Data Sheet – “1.8A Input Current Switch, 1 MHz Low-Voltage

Start-Up Synchronous Boost Regulator” (DS20005253)

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 sheets and errata, application notes and sample

programs, design resources, user’s guides and hardware support documents,

latest software releases and archived software

•General Technical Support – Frequently Asked Questions (FAQs), technical

support requests, online discussion groups, Microchip consultant program

member listing

•Business of Microchip – Product selector and ordering guides, latest Microchip

press releases, listing of seminars and events, listings of Microchip sales offices,

distributors and factory representatives

CUSTOMER SUPPORT

Users of Microchip products can receive assistance through several channels:

• Distributor or Representative

• Local Sales Office

• Field Application Engineer (FAE)

• Technical Support

Customers should contact their distributor, representative or field application engineer

(FAE) for support. Local sales offices are also available 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://www.microchip.com/support.

DOCUMENT REVISION HISTORY

Revision A (March 2015)

• Initial Release of this Document.

MCP1642B/D High-Current Synchronous Boost Converter Evaluation Board User’s Guide

DS50002353A-page 10 2015 Microchip Technology Inc.

NOTES:

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