Microchip Technology MCP73833 Manual de usuario

MCP73833

Li-Ion Battery Charger

Evaluation Board

User’s Guide

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and may be superseded by updates.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.

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MCP73833 LI-ION BATTERY

CHARGER EVALUATION BOARD

USER’S GUIDE

Table of Contents

Preface ........................................................................................................................... 1

Introduction............................................................................................................ 1

Document Layout .................................................................................................. 1

Conventions Used in this Guide ............................................................................ 2

Recommended Reading........................................................................................ 3

The Microchip Web Site ........................................................................................ 3

Customer Support ................................................................................................. 3

Document Revision History ................................................................................... 3

Chapter 1. Product Overview ....................................................................................... 5

1.1 Introduction ..................................................................................................... 5

1.2 What is the MCP73833 Li-Ion Battery Charger Evaluation Board? ................ 6

1.3 What the MCP73833 Evaluation 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 - Top Overlay ................................................................................... 13

A.4 Board - Top Layer ...................................................................................... 14

A.5 Board - Bottom Layer ................................................................................. 15

Appendix B. Bill Of Materials (BOM) ......................................................................... 17

Worldwide Sales and Service .................................................................................... 18

MCP73833 Li-Ion Battery Charger Evaluation Board User’s Guide

NOTES:

MCP73833 LI-ION BATTERY

CHARGER EVALUATION BOARD

USER’S GUIDE

Preface

INTRODUCTION

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

MCP73833 Li-Ion Battery Charger 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 MCP73833 Li-Ion Battery Charger Evaluation

Board. The manual layout is as follows:

•Chapter 1. “Product Overview” – Important information about the MCP73833

Li-Ion Battery Charger Evaluation Board.

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

started with this evaluation kit and a description of the evaluation boards.

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

diagrams for the MCP73833 Li-Ion Battery Charger Evaluation Board.

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

MCP73833 Li-Ion Battery Charger 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

“DSXXXXXA”, where “XXXXX” 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 on-line help.

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

MCP73833 Li-Ion Battery Charger Evaluation Board 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...

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

RECOMMENDED READING

This user's guide describes how to use MCP73833 Li-Ion Battery Charger Evaluation

Board. Other useful documents are listed below. The following Microchip documents

are available and recommended as supplemental reference resources.

MCP73833 Data Sheet, “Stand-Alone Linear Li-Ion / Li-Polymer Charge

Management Controller” (DS22005)

This data sheet provides detailed information regarding the MCP73831 product family.

AN947, “Power Management in Portable Applications: Charging Lithium-Ion /

Lithium-Polymer Batteries” (DS00947)

This application note provides general information regarding charging Li-Ion batteries.

AN971, “USB Port-Powered Li-Ion/Li-Polymer Battery Charging” (DS00971)

This application note provides general information regarding charging Li-Ion batteries

from a USB port.

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

• Development Systems Information Line

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://support.microchip.com

DOCUMENT REVISION HISTORY

Revision A (September 2006)

• Initial Release of this Document.

MCP73833 Li-Ion Battery Charger Evaluation Board User’s Guide

NOTES:

MCP73833 LI-ION BATTERY

CHARGER EVALUATION BOARD

USER’S GUIDE

Chapter 1. Product Overview

1.1 INTRODUCTION

The MCP73833 Li-Ion Battery Charger Evaluation Board is used to evaluate Microchip

Technology’s MCP73833/4 in simple, stand-alone Li-Ion battery charging applications.

Two circuit layouts are provided for evaluation of various device options in either the

DFN or MSOP package.

This chapter covers the following topics:

• What is the MCP73833 Li-Ion Battery Charger Evaluation Board?

• What the MCP73833 Evaluation Kit Includes

FIGURE 1-1: Typical MCP73833 Application.

STAT1

VDD

VSS

PROG

VBAT +

Single

Li-Ion

Cell

1,2

MCP73833

9,10

1µF

1A Li-Ion Battery Charger

1kΩ

VIN

470Ω

1µF

470Ω

STAT2

THERM

10 kΩT

MCP73833 Li-Ion Battery Charger Evaluation Board User’s Guide

1.2 WHAT IS THE MCP73833 LI-ION BATTERY CHARGER EVALUATION

BOARD?

The MCP73833 Li-Ion Battery Charger Evaluation Board is an evaluation and

demonstration tool for Microchip’s MCP73833/4 Stand-Alone Linear Li-Ion/Li-Polymer

Charge Management Controllers.

The evaluation board has two circuits provided with one circuit fully assembled and

tested. Each circuit is set up to evaluate simple, stand-alone, linear charging of single

cell Li-Ion / Li-Polymer battery packs (the battery packs are not included). The circuits

can be evaluated independently. Each circuit design provides constant current

charging followed by constant voltage charging with automatic charge termination and

battery temperature monitoring. In addition, the assembled MCP73833/4-FC circuit

provides preconditioning of deeply depleted cells.

Each board design provides evaluation of the MCP73833/4 in two package options: a

MSOP-10 (not assembled) and a 3mm x 3mm, 10-Lead DFN (assembled) for higher

power handling capability.

When connected, this evaluation board allows for the evaluation of the MCP73833/4

devices in a variety of applications.

1.3 WHAT THE MCP73833 EVALUATION KIT INCLUDES

This MCP73833 Li-Ion Battery Charger Evaluation Board Kit includes:

• MCP73833 Li-Ion Battery Charger Evaluation Board, 102-00117

• Analog and Interface Products Demonstration Boards CD-ROM, (DS21912)

- MCP73833 Li-Ion Battery Charger Evaluation Board User’s Guide,

(DS51526)

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