MCP1662
LED Driver
Evaluation Board
User’s Guide
2014 Microchip Technology Inc.
DS50002285A
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and may be superseded by updates.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. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
FlashFlex, flexPWR, JukeBlox, KEELOQ, KEELOQ logo, Kleer,
LANCheck, MediaLB, MOST, MOST logo, MPLAB,
OptoLyzer, PIC, PICSTART, PIC32 logo, RightTouch, SpyNIC,
SST, SST Logo, SuperFlash and UNI/O are registered
trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
The Embedded Control Solutions Company and mTouch are
registered trademarks of Microchip Technology Incorporated
in the U.S.A.
Analog-for-the-Digital Age, BodyCom, chipKIT, chipKIT logo,
CodeGuard, dsPICDEM, dsPICDEM.net, ECAN, In-Circuit
Serial Programming, ICSP, Inter-Chip Connectivity, KleerNet,
KleerNet logo, MiWi, MPASM, MPF, MPLAB Certified logo,
MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code
Generation, PICDEM, PICDEM.net, PICkit, PICtail,
RightTouch logo, REAL ICE, SQI, Serial Quad I/O, Total
Endurance, TSHARC, USBCheck, VariSense, ViewSpan,
WiperLock, Wireless DNA, and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
Silicon Storage Technology is a registered trademark of
Microchip Technology Inc. in other countries.
GestIC is a registered trademarks of Microchip Technology
Germany II GmbH & Co. KG, a subsidiary of Microchip
Technology Inc., in other countries.
All other trademarks mentioned herein are property of their
respective companies.
© 2014, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
ISBN: 978-1-63276-351-8
QUALITY MANAGEMENT SYSTEM
CERTIFIED BY DNV
== ISO/TS 16949 ==
DS50002285A-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® MCUs and dsPIC® DSCs, KEELOQ® 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.
2014 Microchip Technology Inc.
Object of Declaration: MCP1662 LED Driver Evaluation Board
2014 Microchip Technology Inc.
DS50002285A-page 3
MCP1662 LED Driver Evaluation Board User’s Guide
NOTES:
DS50002285A-page 4
2014 Microchip Technology Inc.
MCP1662 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 MCP1662 Short Overview ............................................................................ 11
1.3 What is the MCP1662 LED Driver Evaluation Board? ................................. 12
1.4 What the MCP1662 LED Driver Evaluation Board Kit Contains ................... 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 .................................................................................................. 17
A.2 Board – Schematic ....................................................................................... 18
A.3 Board – Top Silk .......................................................................................... 19
A.4 Board – Top Silk And Copper ...................................................................... 19
A.5 Board – Bottom Copper ............................................................................... 19
Appendix B. Bill of Materials (BOM)
Worldwide Sales and Service .................................................................................... 22
2014 Microchip Technology Inc.
DS50002285A-page 5
MCP1662 LED Driver Evaluation Board User’s Guide
DS50002285A-page 6
2014 Microchip Technology Inc.
MCP1662 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
“DSXXXXXXXA”, where “XXXXXXX” 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® 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
MCP1662 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 MCP1662 LED Driver Evaluation Board as a
development tool. The manual layout is as follows:
• Chapter 1. “Product Overview” – Important information about the MCP1662
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 MCP1662 LED Driver Evaluation Board.
• Appendix B. “Bill of Materials (BOM)” – Lists the parts used to build the
MCP1662 LED Driver Evaluation Board.
2014 Microchip Technology Inc.
DS50002285A-page 7
MCP1662 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® 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
DS50002285A-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)
{ ...
}
2014 Microchip Technology Inc.
Preface
RECOMMENDED READING
This user's guide describes how to use MCP1662 LED Driver Evaluation Board. Other
useful documents are listed below. The following Microchip documents are available
and recommended as supplemental reference resources.
• MCP1662 Data Sheet - “High-Voltage Step-Up LED Driver with UVLO and
Open Load Protection” (DS20005316)
• MCP1661 Data Sheet - “High-Voltage Integrated Switch PWM Boost Regulator with UVLO” (DS20005315)
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 (June 2014)
• Initial Release of this Document.
2014 Microchip Technology Inc.
DS50002285A-page 9
MCP1662 LED Driver Evaluation Board User’s Guide
NOTES:
DS50002285A-page 10
2014 Microchip Technology Inc.
MCP1662 LED DRIVER
EVALUATION BOARD
USER’S GUIDE
Chapter 1. Product Overview
1.1
INTRODUCTION
This chapter provides an overview of the MCP1662 and covers the following topics:
• MCP1662 Short Overview
• What is the MCP1662 LED Driver Evaluation Board?
• What the MCP1662 LED Driver Evaluation Board Kit Contains
1.2
MCP1662 SHORT OVERVIEW
The MCP1662 is a compact, battery operated, fixed frequency, step-up DC/DC converter optimized as an LED constant current generator. This product provides an
easy-to-use power supply solution for LEDs, 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 MCP1662 is a boost device with PWM-only functionality that operates at a fixed
500 kHz switching frequency. The device has an operating input voltage range from
2.4V to 5.5V (with a typical undervoltage of 2.3V to start and 1.85V to stop). Compared
to its counterpart, the MCP1661, the reference voltage is only 300 mV in order to minimize the losses on the sense resistor and 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 (variable lighting). Compared to its counterpart, the MCP1661, which is designed to be a voltage source, the start-up time for the
MCP1662 has been decreased in order to obtain higher dimming frequencies.
The MCP1662 can supply up to 100 mA of current for a string of four white LEDs (LED
forward voltage of 3.2V) from a 3V or higher input voltage source. More detailed information regarding the current capabilities of the MCP1662 are available in the data
sheet.
In order to obtain a compact solution, the device is available in a small 5-Lead SOT-23
and an 8-Lead 2X3 TDFN package.
2014 Microchip Technology Inc.
DS50002285A-page 11
MCP1662 LED Driver Evaluation Board User’s Guide
VIN= 2.4V to 5.5V
CIN
4.7...10 µF
L
4.7 µH
VFB
VIN
COUT
4.7...20 µF
MCP1662
VFB
EN
OFF
MBRA140
GND
ON
ILED=
FIGURE 1-1:
1.3
0.3V
RSET
RSET
Typical MCP1662 LED Driver Boost Converter Application.
WHAT IS THE MCP1662 LED DRIVER EVALUATION BOARD?
The MCP1662 LED Driver Evaluation Board is used to evaluate and demonstrate
Microchip Technology’s MCP1662 product. This board demonstrates the MCP1662 in
a boost-converter application supplied by two AA batteries, or from an external voltage
source, which drives a string of LEDs with three selectable currents. The MCP1662
LED Driver Evaluation Board was developed to help engineers reduce the product
design cycle time.
Three output currents can be selected: 30 mA, 60 mA and 90 mA. The output current
can be changed with a dual switch that changes the external LED current sense equivalent resistance (RSET).
An enable switch is used to enable and disable the converter. When enabled, the
MCP1662 will regulate the output current; when disabled, the current consumed from
the battery by the device is typically less than 20 nA.
1.4
WHAT THE MCP1662 LED DRIVER EVALUATION BOARD KIT CONTAINS
This MCP1662 LED Driver Evaluation Board kit includes:
• MCP1662 LED Driver Evaluation Board (ADM00555)
• Important Information Sheet
DS50002285A-page 12
2014 Microchip Technology Inc.
MCP1662 LED DRIVER
EVALUATION BOARD
USER’S GUIDE
Chapter 2. Installation and Operation
2.1
INTRODUCTION
The MCP1662 has been developed for applications that require driving a string of LEDs
from a low-voltage source. Using a peak current mode control the MCP1662 offers
good line and load step responses over a wide output range (up to 32V total output voltage or 10 white LEDs). The integration of compensation and protection circuitry is an
important feature that minimizes the required number of additional components.
L
4.7 µH
SW
1.85V to 3.4V
VIN
CIN
10 µF
ULT LITHIUM
+
EN
REN
1 M
ULT LITHIUM
+
2.2
COUT
10 µF
GND
Current
Switch
Selector
RB3
10
-
FIGURE 2-1:
VFB
EN
Switch
-
Note:
MCP1662
RB2
10
RB1
10
The application will typically start if the voltage on the batteries is above 2.3V and will
continue to operate down to 1.85V.
MCP1662 Boost 30, 60, 90 mA Constant Current Application.
FEATURES
The MCP1662 LED Driver Evaluation Board has the following features:
•
•
•
•
•
•
•
•
•
It can be powered by two-cell Alkaline, NiCd, NiMH or Lithium AA cell batteries
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: 30 mA, 60 mA or 90 mA, selected using a dual switch
on-board
PWM Switching Frequency: 500 kHz
Enable converter using switch on board
1.3A Peak Input Current Limit
Overtemperature Protection (if the die temperature exceeds +150°C, with 15°C
hysteresis)
Open Load Protection in case of: LED fail or FB disconnected/fault
2014 Microchip Technology Inc.
DS50002285A-page 13
MCP1662 LED Driver Evaluation Board User’s Guide
2.3
GETTING STARTED
The MCP1662 LED Driver Evaluation Board is fully assembled and tested to evaluate
and demonstrate the MCP1662 product. This board requires the use of external lab
supplies or two AA batteries.
2.3.1
Power Input and Output Connection
2.3.1.1
POWERING THE MCP1662 LED DRIVER EVALUATION BOARD
Soldered test points are available for input voltage connections. The maximum input
voltage should not exceed 5.5V. The output current will not remain in regulation for
input voltages that are greater than or equal to the forward voltage of the LEDs.
The MCP1662 LED Driver Evaluation Board was designed to help the engineer
validate the MCP1662 device. The package selected for the MCP1662 LED Driver
Evaluation Board is 5-Lead SOT-23.
SW1 is the enable switch, which gives the state of the converter, On or Off. A soldered
test point is also available for the EN pin, that can be used for PWM dimming. The
second switch is used to modify the value of the sense resistor, in order to modify the
LED current and achieve analog dimming.
2.3.1.2
BOARD POWER UP PROCEDURE:
1. Connect input supply as shown in Figure 2-2 or insert two AA batteries in the battery holder on the bottom side of the board. Respect the polarity of the batteries.
2. Using the EN switch, the state of the converter is changed from On to Off.
3. Change the value of the output current using the Current Switch Selector. There
are three available currents: 30 mA, 60 mA and 90 mA. When changing the positions of the Current Switch Selector, the value of the sense resistor is modified
and the brightness of the LEDs change.
Additional test points are available to visualize different signals (SW, output current,
FB) or to modify the output current by dimming, using the EN pin.
EN Test Connector
Power Supply
(Optional, if
batteries are
not used)
LEDs Current Switch Selector
LEDs
+
EN Switch
FIGURE 2-2:
DS50002285A-page 14
MCP1662 LED Driver Evaluation Board Setup.
2014 Microchip Technology Inc.
Installation and Operation
2.3.1.3
ADJUSTABLE LED CURRENT BY RECALCULATING THE SENSE
RESISTOR (ANALOG DIMMING)
The Sense Resistor (RSET) is used to modify the value of the output current. The value
for the resistor can be calculated using Equation 2-1:
EQUATION 2-1:
V FB
R SET = ----------I LED
Where: VFB = 0.300V
Note:
2.3.1.4
If the Sense Resistor is recalculated, the Current Switch Selector will not
have the same functionality, as the Sense Resistor 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. The Sense Resistor will be
used in place of the RBX resistors.
ADJUSTABLE LED CURRENT BY USING THE EN PIN (PWM DIMMING)
The MCP1662 allows PWM dimming by turning the LED on and off with a variable duty
cycle 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 input, the LED current changes linearly. An example of PWM dimming can be
observed in Figure 2-3.
By removing the 0 Ohms R1 Resistor, the soldered connectors (J3 and J4) can be used
to either insert a multimeter to measure the LED current or to create a loop through
which, with the help of an oscilloscope current probe, the current through the LED can
be visualized.
VIN = 3V
Four White LEDs
Set LED Current = 90 mA
100 Hz, 50% Duty Cycle Signal applied on EN
Measured averaged LED Current = 45 mA
ILED
50 mA/div
EN
2V/div
VIN
2V/div
5 ms/div
FIGURE 2-3:
2014 Microchip Technology Inc.
PWM Dimming with MCP1662.
DS50002285A-page 15
MCP1662 LED Driver Evaluation Board User’s Guide
NOTES:
DS50002285A-page 16
2014 Microchip Technology Inc.
MCP1662 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 MCP1662 LED
Driver Evaluation Board:
•
•
•
•
Board – Schematic
Board – Top Silk
Board – Top Silk And Copper
Board – Bottom Copper
2014 Microchip Technology Inc.
DS50002285A-page 17
BOARD – SCHEMATIC
SW
J1_2
1 2
4.7uH
C3
10uF
DNP
R1
1
D1
MBRA140T3G
0
C1
10uF
R2
1M
GND
LD2
J1_1
GND
GND
+
LD3
J2_1
LD4
–
S W3
2
J2_2
SW2A
SW2B
RB1
RB2
RB3
10R
10R
10R
DS50002285A-page 18
GND
GND
GND
–
Schematic and Layouts
1 2
GND
SW
1 2
C2
10uF
VIN
3
2
1 2
FB
+
LD1
1 2
5
–
2
1
EN
GND
BT1
GND
J6
U1
J4
1
1 2
4
+
1
SW1
J3
1
1
L1
J2
1
1 2
VIN
J1
1
2014 Microchip Technology Inc.
A.2
Schematic and Layouts
A.3
BOARD – TOP SILK
A.4
BOARD – TOP SILK AND COPPER
A.5
BOARD – BOTTOM COPPER
2014 Microchip Technology Inc.
DS50002285A-page 19
MCP1662 LED Driver Evaluation Board User’s Guide
NOTES:
DS50002285A-page 20
2014 Microchip Technology Inc.
MCP1662 LED DRIVER
EVALUATION BOARD
USER’S GUIDE
Appendix B. Bill of Materials (BOM)
TABLE B-1:
BILL OF MATERIALS (BOM)
Qty. Reference
Description
Manufacturer
Part Number
2462
1
BT1
Battery Holder
Keystone Electronics
Corp.
1
C1
Cap. Ceramic 10 µF 50V X7S 1210
TDK Corporation
1
C2
Cap. Ceramic 10 µF 10V 10% X7R SMD Murata Electronics®
0805
GRM21BR71A106KE51L
1
C3
Cap. Ceramic 10 µF 10V 10% X7R SMD Murata Electronics®
0805 - DO NOT POPULATE
GRM21BR71A106KE51L
1
D1
Diode Schottky 40V 1A SMA
ON Semiconductor®
MBRA140T3G
2
J1_2, J2_2
Header 2.54 mm, Pin, THT, R/A, 2-Way
Wurth Elektronik
61300211021
5
J1, J2, J3,
J4, J6
Conn. TP Loop Tin SMD
Harwin Plc.
S1751-46R
1
L1
Choke, SMD, 4.7 µH
Wurth Elektronik
7447779004
4
LD1, LD2,
LD3, LD4
LED, HI BRIGHT, 51.7LM, Warm White
Cree, Inc.
MLEAWT-A1-R250-0004E5
1
R1
Resistor, 1206 0R0
Welwyn Components
WCR1206-R005JI
1
R2
Resistor 1 MΩ 1/10W 1% 0603 SMD
Panasonic® - ECG
ERJ-3EKF1004V
3
RB1, RB2,
RB3
Resistor TKF 10R 1% 1/10W SMD 0603
Stackpole Electronics,
Inc.
RMCF0603FT10R0
1
SW1
2.54 mm SW_SMD_DIP X1
Wurth Elektronik
418121270801
C3225X7S1H106M
1
SW2
2.54mm SW_SMD_DIP X2
Wurth Elektronik
418121270802
1
U1
Led Driver, Boost Converter
Microchip Technology
Inc.
MCP1662T-E/OT
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.
2014 Microchip Technology Inc.
DS50002285A-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://www.microchip.com/
support
Web Address:
www.microchip.com
Asia Pacific Office
Suites 3707-14, 37th Floor
Tower 6, The Gateway
Harbour City, Kowloon
Hong Kong
Tel: 852-2943-5100
Fax: 852-2401-3431
India - Bangalore
Tel: 91-80-3090-4444
Fax: 91-80-3090-4123
Austria - Wels
Tel: 43-7242-2244-39
Fax: 43-7242-2244-393
Denmark - Copenhagen
Tel: 45-4450-2828
Fax: 45-4485-2829
Australia - Sydney
Tel: 61-2-9868-6733
Fax: 61-2-9868-6755
Atlanta
Duluth, GA
Tel: 678-957-9614
Fax: 678-957-1455
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
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
DS20005316A-page 22
China - Chongqing
Tel: 86-23-8980-9588
Fax: 86-23-8980-9500
China - Hangzhou
Tel: 86-571-8792-8115
Fax: 86-571-8792-8116
China - Hong Kong SAR
Tel: 852-2943-5100
Fax: 852-2401-3431
China - Nanjing
Tel: 86-25-8473-2460
Fax: 86-25-8473-2470
China - Qingdao
Tel: 86-532-8502-7355
Fax: 86-532-8502-7205
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
China - Shenzhen
Tel: 86-755-8864-2200
Fax: 86-755-8203-1760
China - Wuhan
Tel: 86-27-5980-5300
Fax: 86-27-5980-5118
China - Xian
Tel: 86-29-8833-7252
Fax: 86-29-8833-7256
India - New Delhi
Tel: 91-11-4160-8631
Fax: 91-11-4160-8632
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
Korea - Seoul
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
France - Paris
Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
Germany - Dusseldorf
Tel: 49-2129-3766400
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
Malaysia - Kuala Lumpur
Tel: 60-3-6201-9857
Fax: 60-3-6201-9859
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
Malaysia - Penang
Tel: 60-4-227-8870
Fax: 60-4-227-4068
Poland - Warsaw
Tel: 48-22-3325737
Philippines - Manila
Tel: 63-2-634-9065
Fax: 63-2-634-9069
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
Taiwan - Hsin Chu
Tel: 886-3-5778-366
Fax: 886-3-5770-955
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 - Kaohsiung
Tel: 886-7-213-7830
Taiwan - Taipei
Tel: 886-2-2508-8600
Fax: 886-2-2508-0102
Thailand - Bangkok
Tel: 66-2-694-1351
Fax: 66-2-694-1350
China - Xiamen
Tel: 86-592-2388138
Fax: 86-592-2388130
China - Zhuhai
Tel: 86-756-3210040
Fax: 86-756-3210049
03/25/14
2014 Microchip Technology Inc.