MCP1664 LED Driver Evaluation Board User's Guide 2015 Microchip Technology Inc. DS50002363A 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. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip's Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. * Microchip is willing to work with the customer who is concerned about the integrity of their code. * Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as "unbreakable." Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip's code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. 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(c) 2015, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. ISBN: 978-1-63277-376-0 QUALITY MANAGEMENT SYSTEM CERTIFIED BY DNV == ISO/TS 16949 == DS50002363A-page 2 Microchip received ISO/TS-16949:2009 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. 2015 Microchip Technology Inc. Object of Declaration: MCP1664 LED Driver Evaluation Board 2015 Microchip Technology Inc. DS50002363A-page 3 MCP1664 LED Driver Evaluation Board User's Guide NOTES: DS50002363A-page 4 2015 Microchip Technology Inc. MCP1664 LED DRIVER EVALUATION BOARD USER'S GUIDE Table of Contents Preface ........................................................................................................................... 7 Introduction............................................................................................................ 7 Document Layout .................................................................................................. 7 Conventions Used in this Guide ............................................................................ 8 Recommended Reading........................................................................................ 9 The Microchip Web Site ........................................................................................ 9 Customer Support ................................................................................................. 9 Document Revision History ................................................................................... 9 Chapter 1. Product Overview 1.1 Introduction ................................................................................................... 11 1.2 MCP1664 Short Overview ............................................................................ 11 1.3 What is the MCP1664 LED Driver Evaluation Board? ................................. 12 1.4 Contents of the MCP1664 LED Driver Evaluation Board ............................. 12 Chapter 2. Installation and Operation 2.1 Introduction ................................................................................................... 13 2.2 Features ....................................................................................................... 13 2.3 Getting Started ............................................................................................. 14 Appendix A. Schematic and Layouts A.1 Introduction .................................................................................................. 21 A.2 Board - Schematic ....................................................................................... 22 A.3 Board - Top Silk .......................................................................................... 23 A.4 Board - Top Copper and Silk ....................................................................... 23 A.5 Board - Bottom Copper and Silk ................................................................ 23 Appendix B. Bill of Materials (BOM) Worldwide Sales and Service .................................................................................... 28 2015 Microchip Technology Inc. DS50002363A-page 5 MCP1664 LED Driver Evaluation Board User's Guide NOTES: DS50002363A-page 6 2015 Microchip Technology Inc. MCP1664 LED DRIVER 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 "DSXXXXXXXXA", where "XXXXXXXX" 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 online help. Select the Help menu, and then Topics to open a list of available online help files. INTRODUCTION This chapter contains general information that will be useful to know before using the MCP1664 LED Driver 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 MCP1664 LED Driver Evaluation Board as a development tool. The manual layout is as follows: * Chapter 1. "Product Overview" - Important information about the MCP1664 LED Driver 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 MCP1664 LED Driver Evaluation Board. * Appendix B. "Bill of Materials (BOM)" - Lists the parts used to build the MCP1664 LED Driver Evaluation Board. 2015 Microchip Technology Inc. DS50002363A-page 7 MCP1664 LED Driver Evaluation Board User's Guide CONVENTIONS USED IN THIS GUIDE This manual uses the following documentation conventions: DOCUMENTATION CONVENTIONS Description Arial font: Italic characters 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 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 Represents code supplied by user DS50002363A-page 8 Examples File>Save Press <Enter>, <F1> #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} var_name [, var_name...] void main (void) { ... } 2015 Microchip Technology Inc. Preface RECOMMENDED READING This user's guide describes how to use the MCP1664 LED Driver Evaluation Board. Other useful documents are listed below. The following Microchip documents are available and recommended as supplemental reference resources. * MCP1664 Data Sheet - "High-Voltage Step-Up LED Driver with UVLO and Open Load Protection" (DS20005408) This data sheet provides detailed information regarding the MCP1664 LED Driver device. * MCP1663 Data Sheet - "High-Voltage Integrated Switch PWM Boost Regulator with UVLO" (DS20006506) This data sheet provides detailed information about the MCP1663 High-Voltage Integrated Switch PWM Boost Regulator with UVLO device. 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://www.microchip.com/support. DOCUMENT REVISION HISTORY Revision A (May 2015) * Initial Release of this Document. 2015 Microchip Technology Inc. DS50002363A-page 9 MCP1664 LED Driver Evaluation Board User's Guide NOTES: DS50002363A-page 10 2015 Microchip Technology Inc. MCP1664 LED DRIVER EVALUATION BOARD USER'S GUIDE Chapter 1. Product Overview 1.1 INTRODUCTION This chapter provides an overview of the MCP1664 LED Driver Evaluation Board and covers the following topics: * MCP1664 Short Overview * What is the MCP1664 LED Driver Evaluation Board? * Contents of the MCP1664 LED Driver Evaluation Board 1.2 MCP1664 SHORT OVERVIEW The MCP1664 is a compact, battery-operated, fixed-frequency, step-up DC-DC converter optimized as LED constant current generator. This product provides an easy-to-use power supply solution with a minimum number of external components for applications powered by two-cell or three-cell alkaline, NiCd or NiMH batteries, one-cell Li-Ion or Li-Polymer batteries. The MCP1664 is a PWM-only device that operates at a fixed 500 kHz switching frequency. The device has an operating input voltage range from 2.4V to 5.5V (with an undervoltage of 2.3V to start and 1.85V to stop). The reference voltage is only 300 mV in order to minimize the losses on the sense resistor and to increase the overall efficiency of the application. The LED can be turned on and off with a variable duty cycle applied to the EN pin for applications that require current dimming. Compared to its counterpart, the MCP1663 which is designed to be a voltage source, the start-up time for the MCP1664 has been decreased in order to obtain better performance in dimming applications. The MCP1664 can supply up to 200 mA of current for a string of four LEDs (considering a LED Forward Voltage of 3V) from a 3V or higher input voltage source. More detailed information regarding the current capabilities of the MCP1664 are available in the data sheet. In order to provide a compact solution, the device is available in a small 5-Lead SOT-23 and an 8-Lead 2x3 TDFN package. L 4.7 H VIN = 2.4V - 5.5V CIN 4.7 - 20 F VIN MCP1664 VFB EN ON OFF FIGURE 1-1: 2015 Microchip Technology Inc. D SW COUT 4.7 - 20 F GND ILED = 0.3V RSET RSET Typical MCP1664 LED Driver in Boost Topology Schematic DS50002363A-page 11 MCP1664 LED Driver Evaluation Board User's Guide 1.3 WHAT IS THE MCP1664 LED DRIVER EVALUATION BOARD? The MCP1664 LED Driver Evaluation Board is used to evaluate and demonstrate Microchip Technology's MCP1664 product. This board demonstrates the MCP1664 in a boost-converter application supplied from an external voltage source, which drives a string of LEDs with three selectable currents. The MCP1664 LED Driver Evaluation Board was developed to help engineers reduce the product design cycle time. LEDs can be dimmed in two ways: * Analog dimming: changes LED light output by simply adjusting the value of the sense resistor and, by doing so, modifying the DC current in the LED string. * Pulse-width modulation (PWM) dimming: achieves the same effect as analog dimming by varying the duty cycle of a constant current in the string to effectively change the average current in the string. For analog dimming, three output currents can be selected: 90 mA,180 mA and 270 mA. The output current can be changed with a dual switch that changes the external LED current sense equivalent resistance. For PWM dimming, a small triangular wave generator was added to the board along with a variable resistor that sets the duty cycle for the EN pin. 1.4 CONTENTS OF THE MCP1664 LED DRIVER EVALUATION BOARD This MCP1664 LED Driver Evaluation Board kit includes: * One MCP1664 LED Driver Evaluation Board unit (ADM00641) * Important Information Sheet DS50002363A-page 12 2015 Microchip Technology Inc. MCP1664 LED DRIVER EVALUATION BOARD USER'S GUIDE Chapter 2. Installation and Operation 2.1 INTRODUCTION The MCP1664 has been developed for applications that require driving a string of LEDs from a low-voltage source. The MCP1664 is a non-synchronous step-up regulator that can operate over a wide output range up to 32V. Its maximum output current is based on the switch peak current limit (set to 1.8A) and on the maximum duty cycle of 90%. An important feature is that the device integrates the compensation and protection circuitry so that the final solution will require a minimum number of additional components. L1 4.7 H SW 2.4V - 5.5V R3 0 D1 MBRA140 LED1 VIN CIN 2 x 10 F LED2 MCP1664 VFB COUT 10 F LED3 EN PWM Dimming Block(1) Note 1: FIGURE 2-1: 2.2 LED4 GND Q2 Q1 R12 3.3 R11 3.3 R10 3.3 For PWM Dimming Block refer to Figure 2-4. MCP1664 LED Driver Boost Converter 90,180,270 mA Constant Current Application. FEATURES The MCP1664 LED Driver Evaluation Board has the following features: * Input voltage range, VIN: 2.4V to 5.5V, with VIN VOUT * Undervoltage lockout: 2.3V to start; 1.85V to stop * Adjustable output current: 90 mA, 180 mA or 270 mA, selected using a mini dip switch on board * PWM Switching frequency = 500 kHz * Variable resistor and triangular wave generator on the board that can be used for PWM dimming * 1.8A peak current limit * Overtemperature protection (if the die temperature exceeds +150C, 25C hysteresis) * Open load protection: if the LED string fails or is disconnected, the converter will shut down to prevent failure. 2015 Microchip Technology Inc. DS50002363A-page 13 MCP1664 LED Driver Evaluation Board 2.3 GETTING STARTED The MCP1664 LED Driver Evaluation Board is fully assembled and tested to evaluate and demonstrate the MCP1664 product. This board requires the use of external lab supplies. 2.3.1 Power Input and Output Connection 2.3.1.1 POWERING THE MCP1664 LED DRIVER EVALUATION BOARD Soldered test points are available for input voltage connections. The maximum input voltage should not exceed 5.5V. The MCP1664 LED Driver Evaluation Board was designed to help the engineer in the process of validating the device. The package selected for the MCP1664 LED Driver Evaluation Board is the 5-Lead SOT-23. 2.3.1.2 BOARD POWER-UP PROCEDURE: 1. Connect input supply as shown in Figure 2-2. 2. Using the variable resistor, the duty cycle applied on the EN pin is modified and PWM dimming is obtained. When turning the variable resistor from one side to the other, a change in the brightness of the LED can be observed. 3. Change the value of the output current using the Current Select Switch. There are three available currents: 90 mA,180 mA and 270 mA. When modifying the value of the sense resistor, a change in the brightness of the LED can be noticed. Additional test points are available for visualizing different signals: SW node, output current (by removing the R3 resistor and using an ampermeter or a current probe between the CS and VOUT test points), FB node, the triangular signal or the PWM signal applied on the EN pin. PWM Dimming Block + Power Supply FIGURE 2-2: DS50002363A-page 14 Analog Dimming Ampermeter or Current Probe (if R3 resistor is removed) MCP1664 LED Driver Evaluation Board Setup. 2015 Microchip Technology Inc. Installation and Operation 2.3.1.3 ADJUSTING LED CURRENT BY RECALCULATING THE SENSE RESISTOR (ANALOG DIMMING) The sense resistor is used to modify the value of the output current. The value for the resistor can be calculated using the following equation: EQUATION 2-1: SENSE RESISTOR CALCULATION V FB R SENSE = -------------I LED Where: VFB ILED Note: = = 0.300V output LED current If the sense resistor is recalculated, the switch used for current selecting will not be used, as it will add a resistor in parallel with the calculated component and the value of the current will be different than the one specified in the User Guide. Figure 2-3 shows the maximum output current for four LEDs: FIGURE 2-3: Maximum Output Current vs. Input Voltage. For the MCP1664 LED Driver Evaluation Board, if the current select switch is set to 90 mA, the input voltage range varies from 2.4V to 5.5V; when the current select switch is set to 180 mA, the input voltage range is from 3V to 5.5V; when the current select switch is set to 270 mA, the input voltage range runs from 4.5V to 5.5V 2015 Microchip Technology Inc. DS50002363A-page 15 MCP1664 LED Driver Evaluation Board 2.3.1.4 PWM DIMMING BLOCK The MCP1664 allows PWM dimming by turning on and off the LED with a PWM signal applied to the EN pin. The maximum frequency for dimming is limited by the start-up and the load. By varying the duty cycle of the PWM signal applied on the EN pin, the LED current changes linearly. In order to test this feature, a small variable PWM generator, created using three operational amplifiers from a single quad-op-amp chip, was included on the board. VDD VDD R1 4.7 k R5 10 k 5 R6 10 k R4 1.8 k 4 U2A 1 3 7 11 U2B 2 11 MCP6004 C6 0.1 F VDD VDD Triangular wave output 4 MCP6004 9 R7 10 k FIGURE 2-4: C1 0.1 F VDD 4 MCP6004 6 VDD R2 2 k C2 0.47 F C7 0.1 F 10 8 11 U2C PWM output PWM Dimming Block. The circuit consists of a triangular wave generator which is made up of U2B (functioning as an integrator), U2A (acting as a comparator with hysteresis) and a comparator (U2C). U2B non-inverting input is biased at VDD/2. A virtual connection between the inverting and non-inverting inputs allows a constant current through R1 equal to I = VDD/(2R1) which charges the capacitor C2. This way, the U2B integrator output increases linearly with time. When it reaches 95% VDD, the comparator output changes to its maximum output voltage VDD. At that point, the output voltage of the integrator decreases linearly. When it reaches 5% VDD, the comparator output voltage switches to zero and the cycle repeats. Thus, the integrator output is a triangular wave that swings between the levels of 5% and 95% VDD. U2C compares the triangular wave against the DC level given by the R7 variable resistor. Its output is a square wave, with a duty cycle that varies from 0% to 100%. The frequency of the PWM signal is determined by R1, C2, R2 and R4: EQUATION 2-2: PWM DIMMING FREQUENCY R2 f = ------------------------4R 1 R 4 C 2 DS50002363A-page 16 2015 Microchip Technology Inc. Installation and Operation The R1 and R2 resistors affect not only the operating frequency but also the amplitude of the triangular wave. Considering the maximum voltage of the triangular waves (VTH) and the minimum voltage of the triangular waves (VTL), the amplitude swing and the threshold voltages can be calculated by means of the following equation: EQUATION 2-3: TRIANGULAR WAVE AMPLITUDE SWING R4 V TH - V TL = ------V DD R2 Where: R4 < R2 For the MCP1664 LED Driver Evaluation Board, the components were chosen so that they feature a PWM Dimming frequency of 125 Hz and an amplitude swing from 5% VDD to 95% VDD. REFERENCE VOLTAGE TRIANGULAR WAVE DIMMING SIGNAL FIGURE 2-5: 2015 Microchip Technology Inc. Obtaining the Dimming Signal - 84% Duty Cycle. DS50002363A-page 17 MCP1664 LED Driver Evaluation Board TRIANGULAR WAVE REFERENCE VOLTAGE DIMMING SIGNAL FIGURE 2-6: Obtaining the Dimming Signal - 27%. DIMMING SIGNAL LED CURRENT SWITCH SIGNAL FIGURE 2-7: DS50002363A-page 18 Dimming Results - VIN = 4.5V, ILED_SET = 90 mA, DUTY = 27%. 2015 Microchip Technology Inc. Installation and Operation DIMMING SIGNAL LED CURRENT SWITCH SIGNAL FIGURE 2-8: 2015 Microchip Technology Inc. DIMMING results - VIN = 4.5V, ILED_SET = 90 mA, DUTY = 71% DS50002363A-page 19 MCP1664 LED Driver Evaluation Board NOTES: DS50002363A-page 20 2015 Microchip Technology Inc. MCP1664 LED DRIVER EVALUATION BOARD USER'S GUIDE Appendix A. Schematic and Layouts A.1 INTRODUCTION This appendix contains the following schematics and layouts for the MCP1664 LED Driver Evaluation Board: * * * * Board - Schematic Board - Top Silk Board - Top Copper and Silk Board - Bottom Copper and Silk 2015 Microchip Technology Inc. DS50002363A-page 21 BOARD - SCHEMATIC VIN TP1 TP3 VDD L1 1 J1 4.7uH TP8 EN FB GND 5 GND TP2 C3 10uF C4 10uF VIN SW R1 TP9 3 D1 1 HEATSINK1 0R 1206 MBRA140T3G MCP1664 C5 LD1 10uF 50V 1210 1 J2 HEATSINK2 EP GND 6 WHITE GND HEATSINK3 POWER TRAIN EP LD3 WHITE HEATSINK4 R5 R 1 10k 0603 1% OUTB B 5 R6 R 1 10k 0603 1% 2 OUTA A R4 7 3 1.8k 8k 0603 1% 11 C6 0.1uF 16V 0603 GND EP TP7 DIM1 DIM2 Q1 DMN2050L-7 3 2 R9 R 1 10k 0603 1% GND DMN2050L-7 2 TP10 R8 R 1 10k 0603 1% GND OUTC C 3 3.3R 0805 1% GND 10 2 3.3R 0805 1% GND R7 10k 3386F 10% C7 0.1uF 16V 0603 VSS S +C C VDD U2C 4 VDD D Q2 1 DIM1 -C R12 1 4 3 3 1 DIM2 1 2 SW1 S DIP 2 SPST 3.3R 0805 1% GND VDD 9 R11 8 13 DIMMING GND GND GND GND -D U2D 4 VDD D OUTD D 11 12 GND TP6 GND C1 0.1uF 16V 0603 11 VDD GND R10 1 VSS S +A A GND WHITE VDD VDD U2A 4 VDD D VSS S +B B -A U2B 4 VDD D LD4 ANALOG DIMMING -B 2kk 0603 1% VDD DD VDD VDD WHITE LD2 GND 0.47uF 6.3V 0603 R3 R2 4.7k 7k 0603 5% C2 2 TP5 DIMMING 4 U1 EP TP4 GND PWM DIMMING VSS S +D D 11 GND 14 2015 Microchip Technology Inc. MCP1664 LED Driver Evaluation Board User's Guide DS50002363A-page 22 A.2 Schematic and Layouts A.3 BOARD - TOP SILK A.4 BOARD - TOP COPPER AND SILK A.5 BOARD - BOTTOM COPPER AND SILK 2015 Microchip Technology Inc. DS50002363A-page 23 MCP1664 LED Driver Evaluation Board User's Guide NOTES: DS50002363A-page 24 2015 Microchip Technology Inc. MCP1664 LED DRIVER EVALUATION BOARD USER'S GUIDE Appendix B. Bill of Materials (BOM) TABLE B-1: BILL OF MATERIALS (BOM) Qty. Reference Description Manufacturer 3 C1, C6, C7 Cap. ceramic 0.1 F 16V 10% X7R SMD 0603 AVX Corporation 0603YC104KAT2A 1 C2 Cap. ceramic 0.47 F 6.3V 10% X5R SMD 0603 Murata Electronics(R) GRM188R60J474KA01D 2 C3, C4 Cap. ceramic 10 F 10V 10% X7R SMD 0805 Murata Electronics GRM21BR71A106KE51L 1 C5 Cap. ceramic 10 F 50V 20% X7R SMD 1210 Taiyo Yuden Co., Ltd. UMK325AB7106MM-T 1 D1 Diode Schottky MBRA140T3G 505 mV 1A 40V DO-214AC_SMA ON Semiconductor(R) MBRA140T3G 2 J1, J2 Conn. TP Loop Tin SMD Harwin Inc. S1751-46R 1 L1 Inductor 4.7 H 3.16A 20% SMD L7.3W7.3H4.5 Wurth Elektronik 7447779004 4 LD1, LD2, LD3, LD4 Diode LED White 3.2V 700 mA 95lm 2700K SMD L3.45W3.45H2.2 Wurth Elektronik 158353027 2 Q1, Q2 Trans. FET N-CH DMN2050L-7 20V 5.9A Diodes(R) Incorporated 1.4W SOT-23-3 DMN2050L-7 1 PCB Printed Circuit Board - MCP1664 LED Driver Evaluation Board 04-10371 1 R1 Res. TKF 4.7k 5% 1/10W SMD 0603 -- Panasonic(R) - ECG Part Number ERJ-3GEYJ472V 1 R2 Res. TKF 2k 1% 1/10W SMD 0603 Panasonic - ECG ERJ-3EKF2001V 1 R3 Res. TKF 0R SMD 1206 KOA Speer Electronics, Inc. RK73Z2BTTD 1 R4 Res. TKF 1.8k 1% 1/10W SMD 0603 Panasonic - ECG ERJ-3EKF1801V 4 R5, R6, R8, Res. TF 10k 1% 1/16W SMD 0603 R9 TE Connectivity, Ltd. 5-1879337-9 1 R7 Res. Trimmer Cermet 10k 10% 500 mW TH 3386F Bourns(R), Inc. 3386F-1-103T 3 R10, R11, R12 Res. TKF 3.3R 1% 1/8W SMD 0805 Vishay/Dale CRCW08053R30FKEA 1 SW1 Switch DIP 2 SPST 24V 25 mA 418121270802 SMD Wurth Elektronik 418121270802 1 TP1 Conn. TP Loop Red TH Keystone Electronics Corp. 5010 3 TP2, TP6, TP10 Conn. TP Loop Black TH Keystone Electronics Corp. 5011 6 TP3, TP4, TP5, TP7, TP8, TP9 Conn. TP Loop Orange TH Keystone Electronics Corp. 5013 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 2015 Microchip Technology Inc. DS50002363A-page 25 MCP1664 LED Driver Evaluation Board TABLE B-1: Qty. BILL OF MATERIALS (BOM) (CONTINUED) Reference Description Manufacturer Part Number 1 U1 MCHP Analog Switcher Boost LED Driver 32V Microchip Technology Inc. MCP1664T-E/OT 1 U2 MCHP Analog Op Amp 4-Ch 1 MHz MCP6004T-E/ST TSSOP-14 Microchip Technology Inc. MCP6004-E/ST 4 BUMPER CYLIN 0.312" DIA BLK 3M SJ61A11 1 Heat Sink for SMD, 22C/W Fischer Elektronik CK SMD B 19 SA 1 Thermal tape, Adhesive 0.85 W/M.K Amec Thermasol FCTS73-10N1 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 DS50002363A-page 26 2015 Microchip Technology Inc. MCP1664 LED Driver Evaluation Board NOTES: 2015 Microchip Technology Inc. DS50002363A-page 27 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://www.microchip.com/ support Web Address: www.microchip.com Asia Pacific Office Suites 3707-14, 37th Floor Tower 6, The Gateway Harbour City, Kowloon China - Xiamen Tel: 86-592-2388138 Fax: 86-592-2388130 Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 China - Zhuhai Tel: 86-756-3210040 Fax: 86-756-3210049 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 India - Bangalore Tel: 91-80-3090-4444 Fax: 91-80-3090-4123 France - Paris Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79 India - New Delhi Tel: 91-11-4160-8631 Fax: 91-11-4160-8632 Germany - Dusseldorf Tel: 49-2129-3766400 Atlanta Duluth, GA Tel: 678-957-9614 Fax: 678-957-1455 Hong Kong Tel: 852-2943-5100 Fax: 852-2401-3431 Australia - Sydney Tel: 61-2-9868-6733 Fax: 61-2-9868-6755 China - Beijing Tel: 86-10-8569-7000 Fax: 86-10-8528-2104 Austin, TX Tel: 512-257-3370 China - Chengdu Tel: 86-28-8665-5511 Fax: 86-28-8665-7889 Boston Westborough, MA Tel: 774-760-0087 Fax: 774-760-0088 China - Chongqing Tel: 86-23-8980-9588 Fax: 86-23-8980-9500 Chicago Itasca, IL Tel: 630-285-0071 Fax: 630-285-0075 Cleveland Independence, OH Tel: 216-447-0464 Fax: 216-447-0643 Dallas Addison, TX Tel: 972-818-7423 Fax: 972-818-2924 Detroit Novi, MI Tel: 248-848-4000 Houston, TX Tel: 281-894-5983 Indianapolis Noblesville, IN Tel: 317-773-8323 Fax: 317-773-5453 Los Angeles Mission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608 New York, NY Tel: 631-435-6000 San Jose, CA Tel: 408-735-9110 Canada - Toronto Tel: 905-673-0699 Fax: 905-673-6509 China - Dongguan Tel: 86-769-8702-9880 China - Hangzhou Tel: 86-571-8792-8115 Fax: 86-571-8792-8116 India - Pune Tel: 91-20-3019-1500 Japan - Osaka Tel: 81-6-6152-7160 Fax: 81-6-6152-9310 Japan - Tokyo Tel: 81-3-6880- 3770 Fax: 81-3-6880-3771 Korea - Daegu Tel: 82-53-744-4301 Fax: 82-53-744-4302 China - Hong Kong SAR Tel: 852-2943-5100 Fax: 852-2401-3431 Korea - Seoul Tel: 82-2-554-7200 Fax: 82-2-558-5932 or 82-2-558-5934 China - Nanjing Tel: 86-25-8473-2460 Fax: 86-25-8473-2470 Malaysia - Kuala Lumpur Tel: 60-3-6201-9857 Fax: 60-3-6201-9859 China - Qingdao Tel: 86-532-8502-7355 Fax: 86-532-8502-7205 Malaysia - Penang Tel: 60-4-227-8870 Fax: 60-4-227-4068 China - Shanghai Tel: 86-21-5407-5533 Fax: 86-21-5407-5066 Philippines - Manila Tel: 63-2-634-9065 Fax: 63-2-634-9069 China - Shenyang Tel: 86-24-2334-2829 Fax: 86-24-2334-2393 Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 China - Shenzhen Tel: 86-755-8864-2200 Fax: 86-755-8203-1760 Taiwan - Hsin Chu Tel: 886-3-5778-366 Fax: 886-3-5770-955 China - Wuhan Tel: 86-27-5980-5300 Fax: 86-27-5980-5118 Taiwan - Kaohsiung Tel: 886-7-213-7828 China - Xian Tel: 86-29-8833-7252 Fax: 86-29-8833-7256 Germany - Munich Tel: 49-89-627-144-0 Fax: 49-89-627-144-44 Germany - Pforzheim Tel: 49-7231-424750 Italy - Milan Tel: 39-0331-742611 Fax: 39-0331-466781 Italy - Venice Tel: 39-049-7625286 Netherlands - Drunen Tel: 31-416-690399 Fax: 31-416-690340 Poland - Warsaw Tel: 48-22-3325737 Spain - Madrid Tel: 34-91-708-08-90 Fax: 34-91-708-08-91 Sweden - Stockholm Tel: 46-8-5090-4654 UK - Wokingham Tel: 44-118-921-5800 Fax: 44-118-921-5820 Taiwan - Taipei Tel: 886-2-2508-8600 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 01/27/15 DS50002363A-page 28 2015 Microchip Technology Inc.