Microchip Technology MCP73830L Manual de usuario

MCP73830L 2x2 TDFN

Li-Ion Battery Charger

Evaluation Board

User’s Guide

Information contained in this publication regarding device

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and may be superseded by updates.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

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ISBN: 978-1-61341-454-5

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MCP73830L 2X2 TDFN LI-ION BATTERY

CHARGER EVALUATION BOARD

USER’S GUIDE

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................................................................................... 7

Chapter 1. Product Overview

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

1.2 What is the MCP73830L 2x2 TDFN Li-Ion Battery Charger

Evaluation Board? .............................................................................................. 10

1.3 What the MCP73830L 2x2 TDFN Li-Ion Battery Charger Evaluation Board

Kit Includes ......................................................................................................... 10

Chapter 1. Installation and Operation

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

1.2 Features ....................................................................................................... 11

1.3 Getting Started ............................................................................................. 12

Appendix A. Schematic and Layouts

A.1 Introduction ..................................................................................................13

A.2 Board – Schematic ....................................................................................... 14

A.3 Board – Top Layer .......................................................................................15

A.4 Board – Top Copper ...................................................................................15

A.5 Board – Bottom Copper ...............................................................................16

Appendix B. Bill of Materials

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

MCP73830L 2x2 TDFN Li-Ion Battery Charger Evaluation Board User’s Guide

MCP73830L 2X2 TDFN 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

MCP73830L 2x2 TDFN 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 MCP73830L 2x2 TDFN Li-Ion Battery

Charger Evaluation Board. The manual layout is as follows:

•Chapter 1. “Product Overview” – Important information about the MCP73830L

2x2 TDFN Li-Ion Battery Charger Evaluation Board.

•Chapter 1. “Installation and Operation” – Includes instructions on how to get

started with MCP73830L 2x2 TDFN Li-Ion Battery Charger Evaluation Board and

a description of the user’s guide.

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

diagrams for the MCP73830L 2x2 TDFN Li-Ion Battery Charger Evaluation Board.

•Appendix B. “Bill of Materials” – Lists the parts used to build the MCP73830L

2x2 TDFN 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.

MCP73830L 2x2 TDFN 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 isthe 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 MCP73830L 2x2 TDFN Li-Ion Battery Charger

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

documents are available and recommended as supplemental reference resources.

• MCP73830L Data Sheet - “Single-Cell Li-Ion/Li-Polymer Battery Charge

Management Controllers in 2x2 TDFN” (DS25049)

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://support.microchip.com.

DOCUMENT REVISION HISTORY

Revision A (August 2011)

• Initial Release of this Document.

MCP73830L 2x2 TDFN Li-Ion Battery Charger Evaluation Board User’s Guide

NOTES:

MCP73830L 2X2 TDFN LI-ION BATTERY

CHARGER EVALUATION BOARD

USER’S GUIDE

Chapter 1. Product Overview

1.1 INTRODUCTION

The MCP73830L 2x2 TDFN Li-Ion Battery Charger Evaluation Board demonstrates the

features and abilities of Microchip’s MCP73830L Single-Chip Linear Li-Ion Battery

Charger. The MCP73830L is a stand-alone, highly integrated linear battery charge

management controller that employs a constant current / constant voltage (CCCV)

charge algorithm with selectable preconditioning and charge termination. The charge

algorithm is provided for Li-Ion / Li-Polymer battery packs to achieve optimal capacity

in the shortest charging time possible.

The MCP73830L uses an external resistor (RPROG) to set the magnitude of the charge

current up to a maximum of 200 mA.

This chapter covers the following topics:

• “What is the MCP73830L 2x2 TDFN Li-Ion Battery Charger Evaluation Board?”

• “What the MCP73830L 2x2 TDFN Li-Ion Battery Charger Evaluation Board Kit

Includes.”

FIGURE 1-1: MCP73830L Typical Application Circuit.

1F1F

GND PROG

STAT EN

VBAT VIN

GND

Single Cell

Li-Ion Battery

MCP73830L 2x2 TDFN Li-Ion Battery Charger Evaluation Board User’s Guide

1.2 WHAT IS THE MCP73830L 2X2 TDFN LI-ION BATTERY CHARGER

EVALUATION BOARD?

The MCP73830L 2x2 TDFN Li-Ion Battery Charger Evaluation Board demonstrates the

use of Single-Chip Linear Li-Ion Battery Charger with programmable charge current.

The MCP73830L 2x2 TDFN Li-Ion Battery Charger Evaluation Board is set up to

evaluate single-cell Li-Ion battery charge management. This board utilizes Microchip's

MCP73830L thateffectively chargesLi-Ion batteries withhigh-accuracy,preset-voltage

regulation. The MCP73830L 2x2 TDFN Li-Ion Battery Charger Evaluation Board

comes with a pre-installed 2 mm x 2 mm TDFN-6 MCP73830L. This circuit is ready to

charge Li-Ion batteries at a maximum charge current rate up to 200 mA.

A built-in LED is used to display the charge status (STAT).

The MCP73830L has an internal safety timer and will terminate the charge cycle when

the timer has expired.

The MCP73830L 2x2 TDFN Li-Ion Battery Charger Evaluation Board is designed to

observe the performance and features on the circuits via multiple test points. Users can

also discover the compact size of the layout in addition to the device itself. The circuit

can also be implemented into suitable applications without additional work.

1.3 WHAT THE MCP73830L 2X2 TDFN LI-ION BATTERY CHARGER

EVALUATION BOARD KIT INCLUDES

This MCP73830L 2x2 TDFN Li-Ion Battery Charger Evaluation Board kit includes:

• MCP73830L 2x2 TDFN Li-Ion Battery Charger Evaluation Board, 102-00313-R1

• Important Information Sheet

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