Microchip Technology MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board User guide

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MCP73113

OVP Single-Cell

Li-Ion Battery Charger

Evaluation Board

User’s Guide

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MCUs and dsPIC® DSCs, KEELOQ

code hopping

MCP73113 OVP SINGLE-CELL 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........................................................................................2

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

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

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

Chapter 1. Product Overview

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

1.2 What is the MCP73113 OVP Single-Cell Li-Ion Battery Charger

Evaluation Board? .................................................................................... 6

1.3 What the MCP73113 OVP Single-Cell Li-Ion Battery Charger

Evaluation Board Kit Includes: ..................................................................6

Chapter 2. Installation and Operation

2.1 Introduction .....................................................................................................7

2.2 Features .........................................................................................................7

2.3 Getting Started ...............................................................................................8

Appendix A. Schematic and Layouts

A.1 Introduction .................................................................................................. 11

A.2 Board – Schematic .......................................................................................12

A.3 Board – Assembly Drawing ..........................................................................13

A.4 Board – Top Layer ....................................................................................... 14

A.5 Board – Top Metal Layer .............................................................................15

A.6 Board – Bottom Layer .................................................................................16

Appendix B. Bill Of Materials (BOM)

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

MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board User’s Guide

NOTES:

MCP73113 OVP SINGLE-CELL LI-ION

BATTERY CHARGER EVALUATION

BOARD USER’S GUIDE

Preface

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

IDE on-line help.

INTRODUCTION

This chapter contains general information that will be useful to know before using the MCP73113 OVP Single-Cell 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 MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board. The manual layout is as follows:

• Chapter 1. “Product Overview” – Importa nt information about the MCP73113 OVP Single-Cell Li-Ion Battery Charger 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 MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board.

• Appendix B. “Bill Of Materials (BOM)” – Lists the parts used to build the MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board.

MCP73113 OVP Single-Cell 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

Underlined, italic text with right angle bracket

Bold characters A dialog button Click OK

‘bnnnn A binary number where n is a

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

Courier font:

Plain Courier Sample source code #define START

Italic Courier A variable argument file.o, where file can be

0xnnnn A hexadecimal number where

Square brackets [ ] Optional arguments mcc18 [options] file

Curly brackets and pipe character: { | }

Ellipses... Replaces repeated text var_name [,

A menu path File>Save

A tab Click the Power tab

digit

Filenames autoexec.bat File paths c:\mcc18\h Keywords _asm, _endasm, static Command-line options -Opa+, -Opa- Bit values 0, 1

n is a hexadecimal digit

Choice of mutually exclusive arguments; an OR selection

Represents code supplied by user

“Save project before build”

‘b00100, ‘b10

any valid filename

0xFFFF, 0x007A

[options] errorlevel {0|1}

var_name...] void main (void)

{ ... }

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:

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• Technical Support

• Development Systems Information Line

Customers should contact their distributor, representative or field application engineer (FAE) for support. Lo cal 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.

Preface

DOCUMENT REVISION HISTORY

Revision A (July 2009)

• Initial Release of this Document.

MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board User’s Guide

NOTES:

Chapter 1. Product Overview

STAT

PROG

REGULATED WALL CUBE

1-Cell

LED

BAT

OUT

PROG

MCP73113

Li-Ion

Battery

1.1 INTRODUCTION

The MCP73113 product family is highly integrated linear charge management controllers for single-cell Li-Ion and Li-Polymer batteries. The MCP73113 product family operates with minimum external components, which is ideal for use in space-limited and cost-effective applications. The input over voltage protection and battery short circuit protection offer designers a secondary protection in addition to the Li-Ion battery protection circuit.

This chapter provides an overview of the MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board and covers the following topics:

• “What is the MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board?”

• “What the MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board Kit includes:”

MCP73113 OVP SINGLE-CELL LI-ION

BATTERY CHARGER EVALUATION

BOARD USER’S GUIDE

FIGURE 1-1: MCP73113 Typical Application.

MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board User’s Guide

1.2 WHAT IS THE MCP73113 OVP SINGLE-CELL LI-ION BATTERY CHARGER EVALUATION BOARD?

The MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board demonstrates the features of Microchip’s MCP731 13 “Single-Cell Li-Ion / Li-Polymer Battery Charge Management Controller with Input Overvoltage Protection”.

The MCP73113 OVP Single-Cell Li-Ion Battery Charge r Evaluation Board is desig ned with two charging current. The default value is 500 mA and when PROG via is tied to ground, the two parallel resistors output 1000 mA charging current to a Li-Ion battery. One blue LED status output allows the user to learn if the MCP73113 is in charging state or not.

Note: Please refer to Table 2-1 for Charge Status Outputs and Table 2-2 for

Charge Current Setups.

The MCP73113 OVP Single-Cell Li-Ion Battery Charger Evalu ation Board comes with an installed MCP731 13 device in 3mm x 3mm DFN package. The facto ry preset battery regulation voltage is 4.20V with precondition, termination and auto recharge features.

The MCP73113 OVP Single-Cell Li-Ion Battery Charge r Evaluation Board is designed to observe the performance and features on the circuit s via multiple test points. Circuits can also be implemented into suitable applications without additional work.

1.3 WHAT THE MCP73113 OVP SINGLE-CELL LI-ION BATTERY CHARGER EVALUATION BOARD KIT INCLUDES:

This MCP731 13 OVP Single-Cell Li-Ion Battery Char ger Evaluation Bo ard kit includes:

• MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board, 102-00260

• Important Information Sheet

Chapter 2. Installation and Operation

2.1 INTRODUCTION

The MCP73113 is a highly integrated Li-Ion battery charge management controller for use in space-limited and cost-sensitive applications. The MCP73113 provides specific charge algorithms for Li-Ion / Li-Polymer batteries to achieve optimal capacity and safety in the shortest charging time possible. Along with its small physical size, the low number of external components makes the MCP73113 ideally suitable for portable applications.

The absolute maximum voltage, up to 18V, allows the use of MCP73113 in harsh environments, such as low cost wall wart.

The MCP73113 employs a constant current / constant voltage charge algorithm. The various charging voltage regulations provide design engineers flexibility to use in different applications. The fast charge, constant current value is set with one external resistor from 130 mA to 1100 mA. The MCP73113 limits the charge current based on die temperature during high power or high ambient co nditions. This thermal regulation optimizes the charge cycle time while maintaining device reliability.

The PROG pin of the MCP73113 also serves as enable pin. When high impedance is applied, the MCP73113 will be in standby mode.

Typica l applications fo r the r eference desig n are Smart Phon es, PDA, Portab le Media Players, MP3 Players, Digital Cameras, Handheld Medical devices, Bluetooth headsets and Portable Communicators.

MCP73113 OVP SINGLE-CELL LI-ION

BATTERY CHARGER EVALUATION

BOARD USER’S GUIDE

2.2 FEATURES

The MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board has the following features:

• 6.5V Input Over Voltage Protection

• 10% Preconditioning of deeply depleted cells

• 32-Minute Preconditioning Timer

• 6-Hour Safety Timer

• 10% Automatic Charge Termination

• 500 mA and 1000 mA Preset Fast Charge Current

• Automatic Recharge

• Thermal Regulation

• One Blue LED indicates charge status

• Small DFN packages with Exposed Pad as additional heat sink

MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board User’s Guide

5V DC SUPPLY

1-CELL

LI-ION

BATTERY

2.3 GETTING STARTED

The MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board is fully assembled and tested for charging a single-cell Li-Ion or Li-Polymer battery.

2.3.1 Power Input and Output Connection

2.3.1.1 POWERING THE MCP73113 OVP SINGLE-CELL LI-ION BATTERY CHARGER EVALUATION BOARD

1. Connect the positive battery terminal to V

BAT-

2. Connect the 5V DC power supply Negative Terminal to V

3. Connect the 5V DC power supply Positive Terminal to V

4. It should initiate the battery charging cycle when the power sou rce is present and

is below recharge threshold. For example, when V

BAT

to be lower than 3.99V to initiate the charge cycle.

Note: The Li-Ion battery pack can be replaced with test circuit or electronic load

that can sink current with DC power supply. Refer to Figure 2-3.

5. The charging status table is available in Table 2-2.

6. The fast charge current is preset at 500 mA and can be increased to 1A by

connecting PROG via to ground.

Note: Fast Charge Current can be programmed with various resistors based on

Figure 2-2 and Table 2-1.

and negative battery terminal to

BAT+

is 4.2V , V

REG

BAT

needs

FIGURE 2-1: Board Top Assembly.

Installation and Operation

100

200

300

400

500

600

700

800

900

1000

1100

1200

1 2 3 4 5 6 7 8 9 1011121314151617181920

Programming Resistor (Ω)

Charge Current (mA)

VDD = 5.2V T

= +25°C

FIGURE 2-2: MCP73113 Charge Current (I (R

PROG

) vs. Programming Resistor

OUT

TABLE 2-1: MCP73113 RESISTOR LOOKUP TABLE

Charge Current (mA)

130 10k 10k 150 8.45k 8.20k 200 6.20k 6.20k 250 4.99k 5.10k 300 4.02k 3.90k 350 3.40k 3.30k 400 3.00k 3.00k 450 2.61k 2.70k 500 2.32k 2.37k 550 2.10k 2.20k 600 1.91k 2.00k 650 1.78k 1.80k 700 1.62k 1.60k 750 1.50k 1.50k 800 1.40k 1.50k 850 1.33k 1.30k 900 1.24k 1.20k

950 1.18k 1.20k 1000 1.10k 1.10k 1100 1.00k 1.00k

Recommended E96 Resistor

(Ω)

Recommended E24 Resistor

(Ω)

MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board User’s Guide

0V - 6V

Power

Source

Volt

Meter

5Ω

10W

Microchip

Battery

Charge

Management

Controller

Amp Meter

BAT+

BAT-

GND

1000 µF

FIGURE 2-3: Simulated Battery Load.

TABLE 2-2: MCP73113 CHARGE STATUS OUTPUTS

CHARGE CYCLE STATE STAT

Shutdown Hi-Z

Standby Hi-Z

Preconditioning L

Constant Current Fast Charge L

Constant Voltage L

Charge Complete - Standby Hi-Z

Temperature Fault 1.6 second 50% D.C. Flashing (Type 1)

Hi-Z (Type 2)

Timer Fault 1.6 second 50% D.C. Flashing (Type 1)

Hi-Z (Type 2)

Preconditioning Timer Fault 1.6 second 50% D.C. Flashing (Type 1)

Hi-Z (Type 2)

Appendix A. Schematic and Layouts

A.1 INTRODUCTION

This appendix contains the following schematics and layouts for the MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board:

• Board – Schematic

• Board – Top Layer

• Board – Top Metal Layer

• Board – Bottom Layer

MCP73113 OVP SINGLE-CELL LI-ION

BATTERY CHARGER EVALUATION

BOARD USER’S GUIDE

MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board User’s Guide

A.2 BOARD – SCHEMATIC

A.3 BOARD – TOP LAYER

Schematic and Layouts

MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board User’s Guide

A.4 BOARD – TOP METAL LAYER

A.5 BOARD – BOTTOM LAYER

Schematic and Layouts

MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board User’s Guide

NOTES:

MCP73113 OVP SINGLE-CELL LI-ION

BATTERY CHARGER EVALUATION

BOARD USER’S GUIDE

Appendix B. Bill Of Materials (BOM)

TABLE B-1: BILL OF MATERIALS

Qty Reference Description Manufacturer Part Number

4 Bump BUMPON HEMISPHERE .44X.20

WHITE 2 C1, C2 CAP CERAMIC 4.7 µF 25V X5R 1206 TDK C2012X5R1E475M 1 D1 Blue Water Clear 0603 SMD LED Para Light USA L-C191LBCT-U1 1 PCB RoHS Compliant Bare PCB, MCP73113

Evaluation Board 3 R1, R3 RES 2.37K OHM 1/10W 1% 0603 SMD Panasonic 1 R2 RES 1K OHM 1/10W 1% 0603 SMD Panasonic - ECG ERJ-3EKF1001V 4TP1, TP2,

TP3, TP4

1 U1 Single-Cell Li-Ion/Li-Poly Battery Charger

Note 1:

The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM used in manufacturing uses all RoHS-compliant components.

PC Test Point Compact SMT Keystone Electronics

with OVP

3M SJ5003-9-ND

Microchip Technology Inc. 104-00260

- ECG ERJ-3EKF2371V

5016

Microchip Technology Inc. MCP73113-06S/MF

WORLDWIDE SALES AND SERVICE

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UK - Wokingham

Tel: 44-118-921-5869 Fax: 44-118-921-5820

03/26/09

Microchip Technology MCP73113 OVP Single-Cell Li-Ion Battery Charger Evaluation Board User guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Preface

INTRODUCTION

DOCUMENT LAYOUT

CONVENTIONS USED IN THIS GUIDE

RECOMMENDED READING

THE MICROCHIP WEB SITE

CUSTOMER SUPPORT

DOCUMENT REVISION HISTORY

Chapter 1. Product Overview

1.1 INTRODUCTION

1.2 WHAT IS THE MCP73113 OVP SINGLE-CELL LI-ION BATTERY CHARGER EVALUATION BOARD?

1.3 WHAT THE MCP73113 OVP SINGLE-CELL LI-ION BATTERY CHARGER EVALUATION BOARD KIT INCLUDES:

Chapter 2. Installation and Operation

2.1 INTRODUCTION

2.2 FEATURES

2.3 GETTING STARTED

Appendix A. Schematic and Layouts

A.1 INTRODUCTION

A.2 BOARD – SCHEMATIC

A.3 BOARD – TOP LAYER

A.4 BOARD – TOP METAL LAYER

A.5 BOARD – BOTTOM LAYER

Appendix B. Bill Of Materials (BOM)

WORLDWIDE SALES AND SERVICE