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(c) 2007, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received ISO/TS-16949:2002 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California and India. The Company's quality system processes and procedures are for its PIC(R) MCUs and dsPIC(R) DSCs, KEELOQ(R) code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip's quality system for the design and manufacture of development systems is ISO 9001:2000 certified. (c) 2007 Microchip Technology Inc. DS51683A-page ii MCP3421 BATTERY FUEL GAUGE DEMO BOARD USER'S GUIDE Table of Contents Preface ........................................................................................................................... 1 Chapter 1. Product Overview 1.1 Introduction ..................................................................................................... 5 1.2 Features ......................................................................................................... 6 Chapter 2. Installation and Operation 2.1 Board Description ........................................................................................... 9 2.2 Getting Started ............................................................................................. 11 Appendix A. Schematic and Layouts A.1 Introduction .................................................................................................. 15 A.2 Schematic .................................................................................................... 16 A.3 Top Layer and Silk Screen ......................................................................... 17 A.4 Bottom Layer ............................................................................................. 17 Appendix B. Bill Of Materials (BOM) Worldwide Sales and Service .................................................................................... 22 (c) 2007 Microchip Technology Inc. DS51683A-page iii MCP3421 Battery Fuel Gauge Demo Board User's Guide NOTES: DS51683A-page iv (c) 2007 Microchip Technology Inc. MCP3421 BATTERY FUEL GAUGE DEMO 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(R) IDE on-line help. Select the Help menu, and then Topics to open a list of available on-line help files. INTRODUCTION This chapter contains general information that will be useful to know before using the MCP3421 Battery Fuel Gauge Demo 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 MCP3421 Battery Fuel Gauge Demo Board as a development tool. The manual layout is as follows: * Chapter 1. "Product Overview" - Provides the important information about the MCP3421 Battery Fuel Gauge Demo Board. * Chapter 2. "Installation and Operation" - Covers the installation and operation of the MCP3421 Battery Fuel Gauge Demo Board. It lists the required tools, shows how to set up the board, and demonstrates how to verify the amplifier operation. * Appendix A. "Schematic and Layouts" - Shows the schematic and board layouts for the MCP3421 Battery Fuel Gauge Demo Board. * Appendix B. "Bill Of Materials (BOM)" - Lists the parts used to build the MCP3421 Battery Fuel Gauge Demo Board. (c) 2007 Microchip Technology Inc. DS51683A-page 1 MCP3421 Battery Fuel Gauge Demo 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(R) IDE User's Guide ...is the only compiler... the Output window the Settings dialog select Enable Programmer "Save project before build" A dialog button A tab A number in verilog format, where N is the total number of digits, R is the radix and n is a digit. A key on the keyboard Click OK Click the Power tab 4`b0010, 2`hF1 Italic Courier New Sample source code Filenames File paths Keywords Command-line options Bit values Constants A variable argument Square brackets [ ] Optional arguments Curly brackets and pipe character: { | } Ellipses... Choice of mutually exclusive arguments; an OR selection Replaces repeated text #define START autoexec.bat c:\mcc18\h _asm, _endasm, static -Opa+, -Opa0, 1 0xFF, `A' file.o, where file can be any valid filename mcc18 [options] file [options] errorlevel {0|1} Initial caps Quotes Underlined, italic text with right angle bracket Bold characters N`Rnnnn Text in angle brackets < > Courier New font: Plain Courier New Represents code supplied by user DS51683A-page 2 Examples File>Save Press <Enter>, <F1> var_name [, var_name...] void main (void) { ... } (c) 2007 Microchip Technology Inc. Preface RECOMMENDED READING This user's guide describes how to use MCP3421 Battery Fuel Gauge Demo Board. Other useful documents are listed below. The following Microchip documents are available and recommended as supplemental reference resources. MPLAB(R) IDE, Simulator, Editor User's Guide (DS51025) Consult this document for more information pertaining to the installation and features of the MPLAB Integrated Development (IDE) Software. MCP3421 Data Sheet, "18-Bit ADC with I2C Interface and On-Board Reference" (DS22003) Data sheet for the 18 bit ADC MCP3421. This data sheet is needed to understand how the MCP3421 is used to meaure the current and battery voltage. MCP73831/2 Data Sheet, "Miniature Single-Cell, Fully Integrated Li-Ion, Li-Polymer Charge Management Controllers" (DS21984) Data sheet for the Single-Cell Li-Ion, LI-Polymer Charger. This data sheet is helpful to understand how the battery fuel is charged. PIC18F2455/2550/4455/4550 Data Sheet, (DS39632) This data sheet is needed if the user wants to modify the firmware used in the demo board. Note: In the MCP3421 Battery Fuel Gauge Demo Board Kit, the battery charging function is disabled. Contact Microchip Technology, Inc., if you need this function enabled. 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 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 (c) 2007 Microchip Technology Inc. DS51683A-page 3 MCP3421 Battery Fuel Gauge Demo Board User's Guide DOCUMENT REVISION HISTORY Revision A (October 2007) * Initial Release of this Document. DS51683A-page 4 (c) 2007 Microchip Technology Inc. MCP3421 BATTERY FUEL GAUGE DEMO BOARD USER'S GUIDE Chapter 1. Product Overview 1.1 INTRODUCTION The MCP3421 Battery Fuel Gauge Demo Board is used to demonstrate the MCP3421 device for battery fuel gauging applications. The MCP3421 Battery Fuel Gauge Demo Board includes two MCP3421 devices, MCP73831(single cell Li-Ion/Li-Polymer Charger), and PIC18F4550 MCU. The MCP3421 device is a low-power, single channel 18-bit delta-sigma Analog-to-Digital Converter (ADC) in a SOT-23 package. It has an internal voltage reference (VREF = 2.048V) and programmable gain amplifier (x1,x2, x4, x8). It communicates with a master device with I2C interface. The MCP3421 Battery Fuel Gauge Demo Board measures: (a) the battery voltage and (b) the current coming out from the battery in the discharging mode and into the battery in the charging mode using the ADC device (if charging mode is enabled (optional)). It calculates the total fuel used and also remaining fuels. The measurement takes places approximately every one second and updates the measurement data and calculated results on the LCD for about every second. The MCP3421 Battery Fuel Gauge Demo Board includes 2x16 LCD. The LCD displays: (a) measured battery voltage and current, (b) calculated results of battery fuel used. The MCP3421 Battery Fuel Gauge Demo Board also includes a buzzer. This buzzer makes a buzzing sound when the battery voltage drops 50% or the battery is not connected. The PIC18F4550 communicates with the MCP3421 and calculates the fuels. The board also includes a USB connector for a PC graphic user interface (GUI) utility. This GUI is available only for the training class and not included with this demo kit. Figure 1-1 shows the picture of the MCP3421 Battery Fuel Gauge Demo Board. The board includes device foot prints for the two channel 18-bit ADC (MCP3422). The MCP3421 and MCP3422 are the same device family with the same electrical performance, but the MCP3422 has two channels. Therefore, the two MCP3421 devices on the board can be replaced with one MCP3422 device. Note: (c) 2007 Microchip Technology Inc. MCP3421 Battery Fuel Gauge Demo Board has a feature to charge the battery in use. This feature is currently disabled in firmware. Please contact Microchip Technology Inc. if you need the battery charging feature. DS51683A-page 5 MCP3421 Battery Fuel Gauge Demo Board User's Guide 1.2 FEATURES The MCP3421 Battery Fuel Gauge Demo Board has the following features: * Measure the battery voltage and display the result on LCD. * Measure the current coming out from the battery (discharging current) or coming into the battery (charging current) and displays the value on LCD. Note: The charging current is only available when the battery charging mode is enabled. * Calculate the battery fuel that has been used and display the result on LCD. * Turn on beep sounds if the battery is used more than 50% of its initial value, or the battery is not connected. Note: The MCP3421 Battery Fuel Gauge Demo Board can be also configured very easily for other sensor output measurements. Just connect the sensor output at the ADC input terminal. The LCD will display the voltage. The MCP3421 Battery Fuel Gauge Demo Board includes a 9V and 1.5V AAA batteries. Please make sure the positive lead of the 1.5V battery holder is connected to TP9 and the negative lead (black) is connected to the GND terminal. WARNING The U1 and U5 devices may get damaged if the polarity of the battery connection is reversed. If the connection is accidently reversed, replace the U1 and U5 devices in order to obtain accurate measurements. DS51683A-page 6 (c) 2007 Microchip Technology Inc. Product Overview USB Connector (not used) Connector for MPLAB(R) ICD2 In-Circuit Menu Selection Switch 2x16 LCD Test Pins for Battery Charger 9V Battery Connector (TP11) (See Note 1) - 1.5V Battery 9V Power Supply (See Note 1) + Current Sensor PIC18F4550 Potentiometer Insertion of 1.5V AAA Battery into Battery Holder 1.5V AAA Battery + MCP3422 Footprint MCP73831 MCP3421 I2C Interface Test Points MCP3421 MCU MCLR Reset Switch Jumper for Discharging Path Red Lead + - - Black Lead NOTICE Note 1: 2: FIGURE 1-1: Use 9V Power Supply or 9V Battery. Do not use both at same time. 1.5V battery connection: connect the positive lead (red) to TP9 and the negative lead (black) to the GND terminal. A reversed connection will damage the U1 and U5 devices. MCP3421 Battery Fuel Gauge Demo Board (Top Side). (c) 2007 Microchip Technology Inc. DS51683A-page 7 MCP3421 Battery Fuel Gauge Demo Board User's Guide Buzzer FIGURE 1-2: DS51683A-page 8 MCP3421 Battery Fuel Gauge Demo Board (Bottom Side). (c) 2007 Microchip Technology Inc. MCP3421 BATTERY FUEL GAUGE DEMO BOARD USER'S GUIDE Chapter 2. Installation and Operation 2.1 BOARD DESCRIPTION The major components of the MCP3421 Battery Fuel Gauge Demo Board are: 1. MCP3421 devices (U1 and U5). - U1: Measuring current using the R12 current sensor. - U5: Measuring battery voltage. 2. PIC MCU - PCI18F4550 (U2). 3. MPLAB ICD2 Header (P2). 4. USB connector (Not used for this version). 5. Battery discharging path selection Jumper (JP1). 6. Battery charging path selection Jumper (JP2): When battery recharge feature is enabled. 7. 9V Power Supply (BAT 1 and 9V power supply, use only one). 8. 1.5V AAA Battery with battery holder. 9. 2 x 16 LCD (LCD1). 10. MCP73831 device (U3). 11. Switches (SW1, SW2, SW3, SW4, Reset Switch). 12. Potentiometer (R1). For more detailed circuit information, refer to Appendix A: "Schematics and Layouts" and Appendix B: Bill of Materials". 2.1.1 Power Supply The MCP3421 Battery Fuel Gauge Demo Board needs a 9V power supply to provide a 5V DC power to all active components including MCU, ADC, battery charger devices, etc. The user can use a 9V power supply or 9V battery. The MCP3421 Battery Fuel Gauge Demo Board has two connectors for both the 9V power supply and 9V battery. Do not use both power sources at same time. Note: 2.1.2 All active electrical components on the board are powered by the 9V power source. The 1.5V AAA battery that is connected to TP9 (positive) and GND (negative) terminals DOES NOT power the board components. During the discharging, the current path of the test battery is from the 1.5V battery to the ground via a 10 mili-ohm current sensor and an 100 resistor. During the recharging mode (if recharging mode is enabled), the current path is from the VBAT pin of U3 (MCP73831) to the battery via the current sensor. Microcontroller (MCU) The PIC18F4550 (44-pin, TQFT) is used to control ADC devices, charger, buzzer, and LCD. All fuel gauge computations are takes place in the MCU. 2.1.3 LCD Display The LCD display used is a 2 x 16 character dot matrix type display. The PIC18F4550 device writes characters to the LCD. (c) 2007 Microchip Technology Inc. Draft DS51683A-page 9 MCP3421 Battery Fuel Gauge Demo Board User's Guide 2.1.4 Buzzer This demo board has a buzzer. The buzzer beeps when the board is first powered up and also when the battery fuel is consumed 50% or less, or the battery is disconnected. 2.1.5 USB Connector This board has a USB connector for the PIC18F4550. The current firmware version for the PIC18F4550 is not including the USB interface feature. 2.1.6 Interface to MPLAB(R) ICD2 Programmer The MCP3421 Battery Fuel Gauge Demo Board includes the PIC18F4550. This MCU is used to control the data acquisition devices (ADC) and compute the fuel gauging parameters. The MCU also sends characters to the LCD. The board has an 8-pin connector for the ICD In-Circuit Serial ProgrammingTM (ICSPTM). The MCU source code is written in assembly language. The user can modify the code for their own experiment using the MPLAB ICD2 Programmer. The user needs an ICD-2 ICSP adapter socket (P/N: AC164110) between the MPLAB ICD2 Programmer and the MCP3421 Battery Fuel Gauge Demo Board. 2.1.7 Jumper The MCP3421 Battery Fuel Gauge Demo Board uses two jumpers, JP1 and JP2. JP1 is used to provide a battery discharge path. Connect JP1 (while JP2 is disconnected) when testing battery discharging. Contact Microchip Technology Inc., if you need the battery charging mode. Note: 2.1.8 Do not connect both JP1 and JP2 at the same time. Push Button Switches The MCP3421 Battery Fuel Gauge Demo Board has 5 push button switches. * SW1 is used to enter the battery fuel gauging mode. * SW2, SW3, SW4: are not Used. * Reset SW is the MCLR reset pin switch and is used to reset the MCU. 2.1.9 Potentiometer (R1) This potentiometer is used to calibrate the input voltage to the ADC and is calibrated before shipping to the customer. If the customer wants to calibrate, then refer to Step 5 of the calibration procedure in Section 2.2.1 "Battery Fuel Measurement". 2.1.10 Signal Outputs The MCP3421 Battery Fuel Gauge Demo Board has various test points to capture the communication between the MCU and ADC devices. The user can see the I2C communication data streams at SCL and SDA test pins using an oscilloscope. The SYNC terminal is used as a "trigger" source when the SCL and SDA signals are captured. The board also has the test terminals for the battery charger (U3): Prog 1, Prog 2 and C-STAT terminals. DS51683A-page 10 Draft (c) 2007 Microchip Technology Inc. Installation and Operation 2.2 GETTING STARTED You can simulate battery voltage discharging and charging using the MCP3421 Battery Fuel Gauge Demo Board. Battery Fuel Measurement Mode: The MCP3421 Battery Fuel Gauge Demo Board measures the currents coming from the battery every second and computes how many fuels are being used. The fuel is calculated from the time when the MCP3421 Battery Fuel Gauge Demo Board is powered and the fuel measurement is initiated. When JP1 jumper is connected, a battery discharging path from the battery to the current sensor to the 100 resistor (R11) to ground is created. This simulates how battery fuel is consumed in real applications. The differential input pins of U1 (ADC) are connected across the current sensor and measure the current passing through the current sensor. The ADC can determine whether the measured current is discharging current or charging current by testing the sign of the current value. In the battery discharging path, the direction of current flow is from the battery to the ground through R12 and R11. Therefore, the LCD will display a positive sign (` + `) on the display. 2.2.1 Battery Fuel Measurement The battery fuel being used is measured by setting up a discharge path. This discharge path is created when connecting Jumper 1 (JP1) while disconnecting Jumper 2 (JP2). 1. Connect JP1. Note: Make sure JP2 is not connected. 2. Connect a 9V power supply to J1, or connect a 9V battery to TP11. There are two 9V connections. You can use either 9V battery or 9V power supply. Only one power source is used. 3. The LED D3 will turn on, and the LCD will display the following message: Microchip Fuel Gauge Demo 4. A few seconds later, the LCD will display the following message: Disconnect JP2 ConntJP1, Push S1 5. Press S1. The LCD will display the following message: Connect 1.5V Bat at TP9. Press S1 If the 1.5V battery is disconnected, connect the positive lead (red) of the 1.5V battery holder to the TP9 terminal and the negative lead (black) to the GND terminal. Make sure the 1.5V AAA battery is correctly inserted into the battery holder. Press the S1 push button. (c) 2007 Microchip Technology Inc. Draft DS51683A-page 11 MCP3421 Battery Fuel Gauge Demo Board User's Guide 6. The LCD will display the following message continuously: V = +1.5203062 V I = +0.0141780 A Fuel Used: 0.02452 mAh WARNING If the 1.5V AAA battery is reverse connected to the TP9 and GND, it will cause permanent damage to the U1 and U5 devices. The reading on the LCD is not reliable anymore. If this happens, one of the symptoms is that the LCD will display a higher reading or a lesser reading (negative) sign in the current "I" reading. Please replace the U1 and U5 devices, if this incident occurred or contact Microchip Technology Inc. DS51683A-page 12 Draft (c) 2007 Microchip Technology Inc. Installation and Operation ADC Input Voltage Calibration: The potentiometer (R1) is used to calibrate the ADC input voltage. If the displayed battery voltage on the LCD is suspicious, the customer can calibrate the ADC input voltage using the following method: 1. Connect a digital voltmeter between the TP9 (Battery) and Ground (TP4). 2. Read the volts value on the LCD while adjusting the potentiometer. Adjust the potentiometer until the reading on the LCD is the same as the reading on the Digital Volt Meter (DVM). This completes the ADC input calibration. Note: The MCP3421 (U5) is used to measure the battery voltage. The internal reference voltage of the MCP3421 is 2.048V. The MCP3421 (U5) will give a saturated output if the input is greater than its reference voltage (2.048V). To avoid the saturation, the MCP3421 Battery Fuel Gauge Demo Board uses a voltage divider formed by R3, R4 and R1. The potentiometer (R1) is used to calibrate the voltage divider, and provide 50% of the voltage applied at TP9 to the input pin of the MCP3421 (U5). The microcontroller (U2) firmware takes into account this voltage divider value automaticaly. The firmware multiplies a factor of 2 on the U5 result and displays the result on the LCD. START Get ADC value from U1 ( for Discharging Current) Get ADC value from U5 ( for Battery Voltage) Battery Volt = 2 * Acquired Volts (ADC Input = Voltage after voltage divider) Display Battery Volts and Discharging Current Battery Volts < 50% ? Yes Beep No * Discharging Fuel (mAh) = Discharging Current (mAs)/3600 N Fuel Used (mAh) = Discharging Fuel (mAh) i=0 Display Fuel Used FIGURE 2-1: (c) 2007 Microchip Technology Inc. MCP3421 Battery Fuel Gauge Computation Algorithm. Draft DS51683A-page 13 MCP3421 Battery Fuel Gauge Demo Board User's Guide START Fuel Remain (mAh) = Initial Battery Fuel = 170 mAh, 4.2V Get ADC value from U1 ( for Discharging Current) Get ADC value from U5 ( for Battery Voltage) Battery Volt = 2 * Acquired Volts (ADC Input = Voltage after voltage divider) Display Battery Volts and Discharging Current Yes Battery Volts < 50% ? No No Want to Recharge Battery? * Discharging Fuel (mAh) = Discharging Current (mAs)/3600 N Fuel Used (mAh) = Discharging Fuel (mAh) Yes i=0 Display Fuel Remain & Fuel Used Get ADC value from U1 ( for Charging Current) Get ADC value from U5 (Battery Volts) Display Charging Current & Battery Volts Fuel Remain (mAh) = Fuel Remain (mAh) + Fuel Charged (mAh) Is Battery Fully Charged ? or Interrupted ? No Yes FIGURE 2-2: MCP3421 Battery Fuel Gauge Computation Algorithm with Battery Recharge Feature Enabled. (Contact Microchip Technology Inc., if you need this feature enabled). DS51683A-page 14 Draft (c) 2007 Microchip Technology Inc. MCP3421 BATTERY FUEL GAUGE DEMO BOARD USER'S GUIDE Appendix A. Schematic and Layouts NOTICE TO CUSTOMERS All documentation becomes dated, and this user's guide is no exception. Microchip tools and documentation are constantly evolving to meet customer needs, so some schematics and board layouts may differ from those in this document. Please refer to our web site (www.microchip.com) to obtain the latest documentation available. A.1 INTRODUCTION This appendix contains the schematics and PCB layouts for the MCP3421 Battery Fuel Gauge Demo Board. This Appendix includes: * Schematic * Top Layer (with silk screen) * Bottom Layer (c) 2007 Microchip Technology Inc. DS51683A-page 15 MCP3421 Battery Fuel Gauge Demo Board User's Guide SCHEMATIC M A.2 DS51683A-page 16 (c) 2007 Microchip Technology Inc. Schematic and Layouts A.3 TOP LAYER AND SILK SCREEN BOARD EDGE A.4 BOTTOM LAYER (c) 2007 Microchip Technology Inc. DS51683A-page 17 MCP3421 Battery Fuel Gauge Demo Board User's Guide NOTES: DS51683A-page 18 (c) 2007 Microchip Technology Inc. MCP3421 BATTERY FUEL GAUGE DEMO BOARD USER'S GUIDE Appendix B. Bill Of Materials (BOM) NOTICE TO CUSTOMERS All documentation becomes dated, and this user's guide is no exception. Microchip tools and documentation are constantly evolving to meet customer needs, so the Bill Of Materials may differ from those in this document. Please refer to our web site (www.microchip.com) to obtain the latest documentation available. TABLE B-1: Qty BILL OF MATERIALS (BOM) Reference Description Manufacturer Part Number 1 BAT1 BATTERY ALKALINE 9V Gold Peak 29A 1 BAT1 + lug CONN BATT 9V MALE OFF-BRD SNAP Keystone Electronics(R) 635 1 BAT1 - lug CONN BATT 9V FEMALE OFF-BRD SNAP Keystone Electronics 636 0 BAT2 DO NOT POPULATE Polymer Li-Ion Battery: One Mini size (25x20x5 mm) 3.7V, 170mAh for Micro RC Car or Device -- PL-052025 1 BAT3 IC Test Clips Red Kobiconn 13IC307 1 BAT3 IC Test Clips Black Kobiconn 13IC308 1 BAT3 HOLDER BATTERY 1CELL AAA 6"LEAD Keystone Electronics 2467 1 BT3 Alkaline Batteries AAA SIZE ALKA- Gold Peak CELL 1 BUZZER PIEZO BUZZER PIEZO 4KHZ 17.5MM SMT Mallory Sonalert Products Inc AST100Q 9 C1, C4, C7, C9, CAP .1UF 16V CERAMIC C10, C11, C12, X7R 0603 C13, C19 Panasonic(R) - ECG ECJ-1VB1C104K 2 C2, C3 CAP CERAMIC 4.7UF 6.3V X5R 0603 Panasonic - ECG ECJ-1VB0J475K 3 C5, C17, C18 CAP 1.0UF 16V CERAMIC X5R 0603 Panasonic - ECG ECJ-1VB1C105K 1 C6 CAP CER .33UF 16V X7R 0603 Murata Electronics North America GRM188R71C334KA01D 2 C8,C14 CAP CER 10UF 6.3V X5R 0603 Murata Electronics North America GRM188R60J106ME47D 2 C15, C16, CAP CERAMIC 18PF 50V 0603 SMD Panasonic - ECG ECJ-1VC1H180J 1 D1 LED THIN 565NM GRN DIFF 0805 SMD Lumex(R) Inc. SML-LXT0805GW-TR Note: GP24AU-OS2 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. (c) 2007 Microchip Technology Inc. DS51683A-page 19 Bill Of Materials (BOM) TABLE B-1: Qty BILL OF MATERIALS (BOM) (CONTINUED) Reference Description 10 D2, D6, D7, D8, LED THIN 635NM RED DIFF D9, D10, D11, 0805 SMD D12, D13, D14 1 D3 1 D4 1 Manufacturer Part Number Lumex Inc. SML-LXT0805IW-TR Lumex Opto/Components Inc Lumex Inc. SML-LX15IC-TR DIODE SWITCH 100V 150MA SOD123 Micro Commercial Co. 1N4148W-TP D5 DIODE SWITCHING 100V DO35 Micro Commercial Co. 1N914B-TP 4 Ea. Corner SCREW MACH PHIL 4-40X1/4 NYLON Building Fasteners NY PMS 440 0025 PH 4 Ea. Corner STANDOFF HEX .375/4-40THR NYLON Keystone Electronics 1902B 1 J1 CONN POWER JACK 2.5MM PCB CIRC CUI Inc PJ-102B 2 JP1, JP2 CONN HEADER VERT 2POS .100 TIN Tyco(R) Electronics/Amp 3-644695-2 0 JP3 Do Not Populate -- -- 2 SHNTS JP1 & JP2 SHUNT LP W/HANDLE 2 POS 30AU Tyco Electronics/Amp 881545-2 1 L1 INDUCTOR FIXED SMD 10UH 10% Panasonic - ECG ELJ-FC100KF 1 LCD1 16 X 2 LCD Character Display Fema CG1626-SGR1 0 P2 Do Not Populate Tyco Electronics/Amp 3-644456-6 1 PCB RoHS Compliant Bare PCB, MCP3421 Battery Fuel Gauge Demo Board -- 104-00121 1 R1 POT 200K OHM THUMBWHEEL CERM ST Bourns Inc. 3352T-1-204LF 7 R2, R7, R10, R17, R18, R28, R29 RES 10.0K OHM 1/10W 1% 0603 SMD Vishay/Dale CRCW060310K0FKEA 1 R3 RES 510K OHM 1/10W 5% 0603 SMD Rohm MCR03EZPJ514 1 R4 RES 390K OHM 1/10W 5% 0603 SMD Rohm MCR03EZPJ394 1 R5 RES 100K OHM 1/10W 1% 0603 SMD Vishay/Dale CRCW0603100KFKEA 1 R6 RES 2.49K OHM 1/10W 1% 0603 SMD Vishay/Dale CRCW06032K49FKEA 2 R8, R9 RES 221 OHM 1/10W 1% 0603 SMD Vishay/Dale CRCW0603221RFKEA 1 R11 RES 100 OHM 1/8W 1% 0805 SMD Panasonic - ECG ERJ-6ENF1000V 1 R12 RES CURRENT SENSE .010 OHM Ohmite 3W 13FR010E 9 R13, R14, R15, R19, R26, R27, R32, R33, R34 RES 1.5K OHM 1/16W .5% 0603 SMD Susumu Co Ltd RR0816P-152-D 2 R16, R30, R31 RES 1.0K OHM 1/10W .5% 0603 SMD Yageo(R) Corporation RT0603DRD071KL Note: 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. (c) 2007 Microchip Technology Inc. DS51683A-page 20 Bill Of Materials (BOM) TABLE B-1: Qty BILL OF MATERIALS (BOM) (CONTINUED) Reference Description Manufacturer Part Number 1 R20 RES 332 OHM 1/10W 1% 0603 SMD Vishay/Dale CRCW0603332RFKEA 2 R21, R22 RES 24.9 OHM 1/10W 1% 0603 SMD Vishay/Dale CRCW060324R9FKEA 0 R23 Do Not Populate -- -- 1 R24 RES 523 OHM 1/10W 1% 0603 SMD Panasonic - ECG ERJ-3EKF5230V 1 R25 RES 4.7K OHM 1/10W 5% 0603 SMD Panasonic - ECG ERJ-3GEYJ472V 2 R35, R36 RES 0.0 OHM 1/10W 5% 0603 SMD Yageo Corporation RC0603JR-070RL 5 S1, S2, S3, S4, S5 SWITCH LT TOUCH 6X3.5 100GF SMD Panasonic - ECG EVQ-PJS04K 12 TP1<>TP18 PC TEST POINT COMPACT SM Keystone Electronics 5016 1 U1 18-Bit Analog-to-Digital Converter with I2C Interface and On-Board Reference Microchip Technology Inc. MCP3421A0T-E/OT 1 U2 High-Performance, Enhanced Microchip Technology Flash, USB Microcontroller, 44-Pin, Inc. QFP PIC18F4550-I/PT 1 U3 Minature Single Cell, Fully integrated Li-Ion, Li-Polymer Charge Management Controller Microchip Technology Inc. MCP73831-2ACI/OT Alternate Part# MCP73831-2ACI/OT 1 U4 MCP1702 mA Low Quiescent Current LDO Regulator Microchip Technology Inc. MCP1702T-5002I/CB 1 U5 18-Bit Analog-to-Digital Converter with I2C Interface and On-Board Reference Microchip Technology Inc. MCP3421A3T-E/OT -- 0 U6 Do Not Populate -- 1 USB1 CONN RECEPT MINI USB2.0 5POS Hirose Electronic Co. Ltd UX60-MB-5ST 1 X1 CRYSTAL 20.000MHZ 18PF FUND Connor-Winfield SMD Note: XM-1-20.0000 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. (c) 2007 Microchip Technology Inc. DS51683A-page 21 WORLDWIDE SALES AND SERVICE AMERICAS ASIA/PACIFIC ASIA/PACIFIC EUROPE Corporate Office 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: http://support.microchip.com Web Address: www.microchip.com Asia Pacific Office Suites 3707-14, 37th Floor Tower 6, The Gateway Harbour City, Kowloon Hong Kong Tel: 852-2401-1200 Fax: 852-2401-3431 India - Bangalore Tel: 91-80-4182-8400 Fax: 91-80-4182-8422 India - New Delhi Tel: 91-11-4160-8631 Fax: 91-11-4160-8632 Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 India - Pune Tel: 91-20-2566-1512 Fax: 91-20-2566-1513 France - Paris Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79 Japan - Yokohama Tel: 81-45-471- 6166 Fax: 81-45-471-6122 Germany - Munich Tel: 49-89-627-144-0 Fax: 49-89-627-144-44 Atlanta Duluth, GA Tel: 678-957-9614 Fax: 678-957-1455 Boston Westborough, MA Tel: 774-760-0087 Fax: 774-760-0088 Chicago Itasca, IL Tel: 630-285-0071 Fax: 630-285-0075 Dallas Addison, TX Tel: 972-818-7423 Fax: 972-818-2924 Detroit Farmington Hills, MI Tel: 248-538-2250 Fax: 248-538-2260 Kokomo Kokomo, IN Tel: 765-864-8360 Fax: 765-864-8387 Los Angeles Mission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608 Santa Clara Santa Clara, CA Tel: 408-961-6444 Fax: 408-961-6445 Toronto Mississauga, Ontario, Canada Tel: 905-673-0699 Fax: 905-673-6509 Australia - Sydney Tel: 61-2-9868-6733 Fax: 61-2-9868-6755 China - Beijing Tel: 86-10-8528-2100 Fax: 86-10-8528-2104 China - Chengdu Tel: 86-28-8665-5511 Fax: 86-28-8665-7889 Korea - Daegu Tel: 82-53-744-4301 Fax: 82-53-744-4302 China - Fuzhou Tel: 86-591-8750-3506 Fax: 86-591-8750-3521 Korea - Seoul Tel: 82-2-554-7200 Fax: 82-2-558-5932 or 82-2-558-5934 China - Hong Kong SAR Tel: 852-2401-1200 Fax: 852-2401-3431 Malaysia - Kuala Lumpur Tel: 60-3-6201-9857 Fax: 60-3-6201-9859 China - Nanjing Tel: 86-25-8473-2460 Fax: 86-25-8473-2470 Malaysia - Penang Tel: 60-4-227-8870 Fax: 60-4-227-4068 China - Qingdao Tel: 86-532-8502-7355 Fax: 86-532-8502-7205 Philippines - Manila Tel: 63-2-634-9065 Fax: 63-2-634-9069 China - Shanghai Tel: 86-21-5407-5533 Fax: 86-21-5407-5066 Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 China - Shenyang Tel: 86-24-2334-2829 Fax: 86-24-2334-2393 Taiwan - Hsin Chu Tel: 886-3-572-9526 Fax: 886-3-572-6459 China - Shenzhen Tel: 86-755-8203-2660 Fax: 86-755-8203-1760 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 China - Shunde Tel: 86-757-2839-5507 Fax: 86-757-2839-5571 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 China - Wuhan Tel: 86-27-5980-5300 Fax: 86-27-5980-5118 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 Italy - Milan Tel: 39-0331-742611 Fax: 39-0331-466781 Netherlands - Drunen Tel: 31-416-690399 Fax: 31-416-690340 Spain - Madrid Tel: 34-91-708-08-90 Fax: 34-91-708-08-91 UK - Wokingham Tel: 44-118-921-5869 Fax: 44-118-921-5820 China - Xian Tel: 86-29-8833-7252 Fax: 86-29-8833-7256 10/05/07 DS51683A-page 22 Draft (c) 2007 Microchip Technology Inc.