Datasheet

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MCP7383X

Li-Ion System

Power Path Management

Reference Design

Summary of content (20 pages)

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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.
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LI-ION SYSTEM PPM REFERENCE DESIGN Table of Contents Preface ........................................................................................................................... 1 Introduction............................................................................................................ 1 Document Layout .................................................................................................. 1 Conventions Used in this Guide ......................................................
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LI-ION SYSTEM PPM REFERENCE DESIGN 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.
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Li-Ion System PPM Reference Design 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...
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Preface RECOMMENDED READING This user's guide describes how to use Li-Ion System PPM Reference Design. The following Microchip document is recommended as supplemental reference resources. MCP73832 Data Sheet, “Miniature Single-Cell, Fully Integrated Li-Ion, Li-Polymer Charge Management Controllers”, DS21984 This data sheet provides detailed information regarding the MCP73832 product family.
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LI-ION SYSTEM PPM REFERENCE DESIGN Chapter 1. Product Overview 1.1 INTRODUCTION Portable electronics has played an important role in modern era. Due to the natural characteristics of Li-Ion / Li-Polymer batteries, they are the most popular power sources for mobile devices. However, extra care in design is always important to implement Li-Ion / Li-Polymer batteries. System Power Path Management allows end-users to charge their batteries without interruption.
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Li-Ion System PPM Reference Design 1.2 WHAT IS THE LI-ION BATTERY CHARGER SYSTEM POWER PATH MANAGEMENT REFERENCE DESIGN? The Li-Ion Battery Charger System Power Path Management Reference Design demonstrates the features of Microchip’s MCP73832 “Miniature Single-Cell, Fully Integrated Li-Ion, Li-Polymer Charge Management Controllers” and MCP73833 “Miniature Single-Cell, Fully Integrated Li-Ion, Li-Polymer Charge Management Controllers” with the load sharing system power path management capability.
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LI-ION SYSTEM PPM REFERENCE DESIGN Chapter 2. Installation and Operation 2.1 INTRODUCTION The Li-Ion Battery Charger System Power Path Management Reference Design demonstrates Microchip's stand-alone Linear Li-Ion Battery Chargers - MCP73832 and MCP73833 while allowing input power source to operate the system load. The system load can also be supported by the Li-Ion battery when input power is disconnected.
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Li-Ion System PPM Reference Design 2.3 GETTING STARTED The Li-Ion Battery Charger System Power Path Management Reference Design is fully assembled and tested for charging a single-cell Li-Ion or Li-Polymer battery with or without system load. 2.3.1 Power Input and Output Connection 2.3.1.1 POWERING THE LI-ION BATTERY CHARGER SYSTEM POWER PATH MANAGEMENT REFERENCE DESIGN 1. Connect the positive battery terminal to VBAT+ and negative battery terminal to VBAT-. 2.
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Installation and Operation 1 FIGURE 2-2: (RPROG). MCP73832 Charge Current (IOUT) vs. Programming Resistor FIGURE 2-3: Simulated Battery Load. © 2008 Microchip Technology Inc.
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Li-Ion System PPM Reference Design 1 FIGURE 2-4: TABLE 2-1: Board Top Assembly.
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LI-ION SYSTEM PPM REFERENCE DESIGN Appendix A. Schematic and Layouts A.1 INTRODUCTION This appendix contains the following schematics and layouts for the Li-Ion Battery Charger System Power Path Management Reference Design: • • • • Board – Schematic Board – Top Layer Board – Top Metal Layer Board – Bottom Layer © 2008 Microchip Technology Inc.
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LI-ION SYSTEM PPM REFERENCE DESIGN Appendix B. Bill Of Materials (BOM) TABLE B-1: Qty BILL OF MATERIALS (BOM) Reference Description BUMPON HEMISPHERE .44X.20 WHITE Manufacture 3M Part Number 4 Bump SJ5003-9-ND 4 C1, C2, C3, C4 CAP CERAMIC 4.
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