MCP73833 Li-Ion Battery Charger Evaluation Board User’s Guide © 2006 Microchip Technology Inc.
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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 ...........................
MCP73833 Li-Ion Battery Charger Evaluation Board User’s Guide NOTES: DS51626A-page iv © 2006 Microchip Technology Inc.
MCP73833 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.
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 Arial font: Italic characters Represents Referenced books Emphasized text A window A dialog A menu selection A field name in a window or dialog A menu path MPLAB® IDE User’s Guide ...is the only compiler...
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.
MCP73833 Li-Ion Battery Charger Evaluation Board User’s Guide NOTES: DS51626A-page 4 © 2006 Microchip Technology Inc.
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.
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.
MCP73833 LI-ION BATTERY CHARGER EVALUATION BOARD USER’S GUIDE Chapter 2. Installation and Operation 2.1 INTRODUCTION The MCP73833 Li-Ion Battery Charger Evaluation Board demonstrates Microchip Technology’s MCP73833/4 devices. The MCP73833/4 is a Stand-Alone Linear Li-Ion/Li-Polymer Charge Management Controller. A number of device options allow the MCP73833/4 to be utilized in a variety of applications. Refer to the MCP73833/4 data sheet (DS22005) for device options. 2.
MCP73833 Li-Ion Battery Charger Evaluation Board User’s Guide 2.3 GETTING STARTED The MCP73833 Li-Ion Battery Charger Evaluation Board has one circuit fully assembled and tested for charging single cell, Li-Ion/Li-Polymer battery packs. The board provides the appropriate charge algorithm for simple, stand-alone operation. The board requires the use of an external input voltage source (5V ±10%, recommended) and external load (battery pack or simulated battery load). 2.3.
Installation and Operation load will not work for preconditioning and fast charge currents. The best way to evaluate the charge management circuit is to use a single cell Li-Ion battery pack, or the recommended simulated battery load. Refer to Figure 2-2. B+ + + 5Ω 10 W 1,000 µF 10V Al _ Variable Power Supply 0V - 6V B- FIGURE 2-2: 2.3.1.3 Simulated Battery Load. SETTING THE FAST CHARGE CURRENT 1.
MCP73833 Li-Ion Battery Charger Evaluation Board User’s Guide 2.3.1.6 DEVICE SUPPORT OPTIONS 1. The MCP73833 Li-Ion Battery Charger Evaluation Board is capable of supporting all of the available MCP73833/4 device options. The factory installed device is the MCP73833-FCI/MF. Refer to the MCP73833/4 data sheet for available device options and details regarding the installed device options. DS51626A-page 10 © 2006 Microchip Technology Inc.
MCP73833 LI-ION BATTERY CHARGER EVALUATION BOARD USER’S GUIDE Appendix A. Schematic and Layouts A.1 INTRODUCTION This appendix contains the following schematic and layouts for the MCP73833 Li-Ion Battery Charger Evaluation Board. Diagrams included in this appendix: • • • • Board Schematic Board - Top Overlay Board - Top Layer Board - Bottom Layer © 2006 Microchip Technology Inc.
MCP73833 Li-Ion Battery Charger Evaluation Board User’s Guide BOARD SCHEMATIC A A K A K K K K A A A DS51626A-page 12 K A.2 © 2006 Microchip Technology Inc.
Schematic and Layouts A.3 BOARD - TOP OVERLAY TP 1 TP 2 C1 C2 TP 3 U1 D2 TP 4 R1 D1 R2 R5 R6 R3 R4 D3 R7 TP 5 TP 6 C3 C4 TP 7 U2 D5 TP 8 R8 D4 R9 R1 2 R1 3 R1 0 R1 1 © 2006 Microchip Technology Inc.
MCP73833 Li-Ion Battery Charger Evaluation Board User’s Guide A.4 BOARD - TOP LAYER DS51626A-page 14 © 2006 Microchip Technology Inc.
Schematic and Layouts A.5 BOARD - BOTTOM LAYER © 2006 Microchip Technology Inc.
MCP73833 Li-Ion Battery Charger Evaluation Board User’s Guide NOTES: DS51626A-page 16 © 2006 Microchip Technology Inc.
MCP73833 LI-ION BATTERY CHARGER EVALUATION BOARD USER’S GUIDE Appendix B. Bill Of Materials (BOM) TABLE B-1: Qty. 2 1 2 3 1 1 1 1 4 1 BILL OF MATERIALS (BOM) Reference Description Part Number ® LMK212BJ475KG-TR 4.7uF, X7R Ceramic, 10V, 0805 Taiyo Yuden LTST-C190KRKT Super Red LED, 0603 Lumex® Green LED, 0603 Lumex LTST-C190KGKT ERJ-3EKF2210V 221, 1/10W, Chip Resistor, 0603 Panasonic®-ECG 1.
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