MCP9700B - Sensor Microchip - Free user manual and instructions

USER MANUAL MCP9700B Microchip

MCP9700 Thermistor Demo Board User's Guide

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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® 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.

Table of Contents

Preface ....1

Introduction....1

Document Layout 1

Conventions Used in this Guide.... 2

Recommended Reading.... 3

The Microchip Web Site 3

Customer Support 3

Document Revision History.... 4

Chapter 1. Product Overview

1.1 Introduction 5

1.2 What is the MCP9700 Thermistor Demo Board? 5

1.3 What the MCP9700 Thermistor Demo Board Kit Includes 5

Chapter 2. Installation and Operation

2.1 Introduction 7

2.2 Getting Started 7

2.3 Configuring Board 9

Appendix A. Schematic and Layouts

A.1 Introduction 13

A.2 Board Schematic - Page 1 14

A.3 Board - Top Silk-screen Layer 15

A.4 Board - Top Layer 15

A.5 Board - Bottom Silk 16

A.6 Board - Bottom Layer 16

Appendix B. Bill Of Materials (BOM)

Worldwide Sales and Service 20

NOTES:

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 ^® 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 MCP9700 Thermistor 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 MCP9700 Thermistor Demo Board as a development tool. The manual layout is as follows:

• Chapter 1. “Product Overview” – Important information about the MCP9700 Thermistor Demo Board.
• Chapter 2. “Installation and Operation” – This chapter includes a detailed description of each function of the demo board and instructions for how to begin using the board.
• Appendix A. “Schematic and Layouts” – Shows the schematic and layout diagrams for the MCP9700 Thermistor Demo Board.
• Appendix B. “Bill Of Materials (BOM)” – Lists the parts used to build the MCP9700 Thermistor Demo Board.

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:

DOCUMENTATION CONVENTIONS

Description Represents Examples
Arial font:
Italic characters Referenced books	MPLAB	^ IDE User's Guide
	Emphasized text ...is the only compiler...
Initial caps A window the Output	window
	A dialog the Settings dialog
	A menu selection select Enable Programmer
Quotes A field name in a window or dialog		"Save project before build"
Underlined, italic text with right angle bracket	A menu path File>Save	——
Bold characters A dialog button	Click OK
	A tab	Click the Power tab
N'Rnnnn	A number in verilog format, where N is the total number of digits, R is the radix and n is a digit.	4'b0010, 2'hF1
Text in angle brackets <>	A key on the keyboard	Press,,
Courier New font:
Plain Courier New	Sample source code	#define START
	Filenames	autoexec.bat
	File paths	c:\mcc18\h
	Keywords	_asm, _endasm, static
	Command-line options	-Opa+, -Opa-
	Bit values	0, 1
	Constants	0xFF, 'A'
Italic Courier New	A variable argument	file.o, where file can be any valid filename
Square brackets []	Optional arguments	mcc18 [options] file [options]
Curly brackets and pipe character: { | }	Choice of mutually exclusive arguments; an OR selection	errorlevel {0|1}
Ellipses... Replaces repeated text var_name [,		var_name...]
		Represents code supplied by user void main (void){ ...}

RECOMMENDED READING

This user's guide describes how to use the MCP9700 Thermistor Demo Board. The following Microchip documents are available on our web site (www.microchip.com) and recommended as supplemental reference resources.

AN897, "Thermistor Temperature Sensing with MCP6SX2 PGAs", DS00897

Explains the functionality and design of this board's circuit. Contains measurement results.

MCP9700 Data Sheet, "Low-Power Linear Active Thermistor™", DS21942

This data sheet provides detailed information regarding the MCP9700 product family.

MCP6S21/2/6/8 Data Sheet, "Single-Ended, Rail-to-Rail I/O, Low Gain PGA", DS21117

Gives detailed information on the MCP6S21/2/3/6/8 Programmable Gain Amplifiers (PGA).

MCP6S91/2/3 Data Sheet, "Single-Ended, Rail-to-Rail I/O, Low Gain PGA", DS21908

Gives detailed information on the MCP6S91/2/3 PGAs.

PIC18F2455/2550/4455/4550 Data Sheet, "28/40/44-Pin, High-Performance, Enhanced Flash, USB Microcontrollers with nanoWatt Technology", DS39632

This data sheet provides detailed information regarding the PIC18F2455/2550/4455/4550 devices.

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
• Development Systems Information Line

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

DOCUMENT REVISION HISTORY

Revision A (August 2008)

- Initial Release of this Document

Chapter 1. Product Overview

1.1 INTRODUCTION

The following name and assembly number are found on the MCP9700 Thermistor Demo Board's Printed Circuit Board (PCB):

• 102-00156

This PCB goes by the following title:

• MCP9700 Thermistor Demo Board

This board is supported by AN897, "Thermistor Temperature-Sensing with MCP6SX2 PGAs", (DS00897). It uses a BC Components® 2322 640 55103 NTC thermistor to detect temperature. The circuit also includes a voltage divider and a MCP6S22 Programmable Gain Amplifier (PGA) and the MCP9700 Linear Active Thermistor.

• Kit Contents
  • MCP9700 Thermistor Demo Board
• Associated Tools
• Initial Set-up

1.2 WHAT IS THE MCP9700 THERMISTOR DEMO BOARD?

The MCP9700 Thermistor Demo Board contains the analog circuitry to measure temperature. It uses BC Components' 2322 640 55103 NTC thermistor to convert temperature to resistance. The thermistor is placed in a voltage divider which converts resistance to voltage. This voltage is filtered and placed at the MCP6S22 Programmable Gain Amplifier's (PGA) CH0 input. The PGA gains and buffers the thermistor.

In addition, the board includes the MCP9700 Linear Active Thermistor. The MCP9700 outputs voltage proportional to temperature. A PIC18F2550 is used to both measure the voltage output of the MCP9700 and the MCP6S22 using an integrated 10-bit Analog to Digital Converter and communicate to a PC via USB interface.

Temperature can be datalogged using Microchip Thermal Management Software Graphical User Interface (GUI).

1.3 WHAT THE MCP9700 THERMISTOR DEMO BOARD KIT INCLUDES

• MCP9700 Thermistor Demo Board – An assembled and tested PCB (102-00156)
• Microchip Thermal Management Graphical User Interface
• Analog and Interface Products Demonstration Boards CD-ROM (DS21912)

- MCP9700 Thermistor Demo Board User's Guide, (DS51753)

NOTES:

Chapter 2. Installation and Operation

2.1 INTRODUCTION

The MCP9700 Thermistor Demo Board makes it easy to explore the operation of two thermistor applications using the MCP6S22 PGA and the MCP9700 Linear Active Thermistor. Items discussed in this chapter include:

• Configuring the MCP9700 Thermistor Demo Board
  • Using the MCP9700 Thermistor Demo Board
  • Using the Microchip Thermal Management GUI

2.2 GETTING STARTED

This section describes how to power up and interface with the MCP9700 Thermistor Demo Board, Figure 2-1.

Isometric diagram of a mechanical assembly with three components and an arrow indicating direction (no text or symbols)

MCP9700 Thermistor Demo Board
FIGURE 2-1: MCP9700 Thermistor Demo Board Block Diagram.

2.2.1 Hardware Setup

1. The MCP9700 Thermistor Demo Board has a mini-USB connector for a PC interface. Connect the USB cable from the MCP9700 Thermistor Demo Board to a PC. The MCP9700 Thermistor Demo Board is fully powered and temperature can be measured.
2. Start the Thermal Management Software GUI for data logging or to evaluate the MCP9700 Thermistor Demo Board features.

graph TD
    A["Thermistor Temperature Sensor"] --> B["Thermistor"]
    B --> C["Voltage Divider"]
    C --> D["MCP6S22 PGA"]
    D --> E["PIC18F2550"]
    E --> F["PC"]
    G["Linear Active Thermistor"] --> H["MCP9700"]
    E <-->|USB Interface| F

FIGURE 2-2: MCP9700 Thermistor Demo Board Circuit Block Diagram.

The MCP9700 Thermistor Demo Board includes a Thermistor and Microchip's MCP9700 Linear Active Thermistor temperature sensors. The thermistor is biased using a resistive stack which can be adjusted using the user settable dip switches. The voltage across the thermistor is proportional to change in temperature. The thermistor output is gained and buffered using Microchip's MCP6S22 Programmable Gain Amplifier (PGA). The output of the PGA is directly connected to an Analog to Digital Converter. The MCP9700 output voltage is also directly connected to an ADC. The data from the ADC is sent to the PC using the USB interface.

The user can compare and evaluate both the standard thermistor solution and Microchip's Linear Active Thermistor solution using this MCP9700 Thermistor Demo Board.

2.3 CONFIGURING BOARD

2.3.1 Configuring Jumper JMP1 (select Thermistor or Rvar)

Figure 2-3 shows how jumper JMP1 configures the circuit. When the shorting bar is on the right side of jumper JMP1, the thermistor R_TH is connected to the circuit. When it is on the left side of jumper JMP1, the thermistor emulator Rvar is connected to the circuit. Refer to Figure A.3 for the complete schematic.

VDD = 5.0V RA To filter and PGA's CH0 input Rvar Thermistor JMP1 Rvar RTH

FIGURE 2-3: Simplified Jumper Circuit.

2.3.2 Configuring DIP Switch SW1 (R A)

DIP switch SW 1 and resistors R 1 – R 7 in Figure 2-4 emulate the voltage divider resistor (R A in Figure 2-3). R _1 is placed in series with the others to prevent shorting the supplies together. These resistors produce a binary sequence of values between 0.5 kΩ and 32.0 kΩ.

Refer to Figure A.3 for the complete schematic.

+5V 500 R1 499 SW1 500 1,000 2,000 4,000 8,000 16,000 R2 499Ω R3 1.00 kΩ R4 2.00 kΩ R5 4.02 kΩ R6 8.06 kΩ R7 16.0 kΩ

FIGURE 2-4: R A Emulator.

Each resistor with its switch (in SW1) pointing to the right, away from the silk screen resistor values, is not added into the total for R_A (it shorts that resistor).

Each resistor with its switch (in SW1) pointing to the left, towards the silk screen resistor values, is added into the total for R_A .

As an example, if the top four switches are to the right, and the bottom two are to the left, then R_A is calculated as 500 + 0 + 0 + 0 + 0 + 8,000 + 16,000 = 24,500 .

2.3.3 Using the Thermistor (R TH)

In Appendix A. “Schematic and Layouts”, R_21 is the thermistor ( R_TH in Figure 2-3). The resistance changes depending on temperature; see AN897, “Thermistor Temperature Sensing with MCP6SX2 PGAs” (DS00897).

2.3.4 Configuring DIP Switch SW2 (R TH Emulator, Rvar)

DIP switch SW2 and resistors R_8-R_19 in Figure 2-5 comprise the thermistor emulator (Rvar in Figure 2-3). Rvar produces a binary sequence of resistances between 0Ω and 409.5 kΩ.

Refer to Figure A.3 for the complete schematic.

SW2 100 200 400 800 1,600 3,200 6,400 12,800 25,600 51,200 102,400 204,800 R8 100Ω R9 200Ω R10 402Ω R11 806Ω R12 1.6 kΩ R13 3.24 kΩ R14 6.49 kΩ R15 12.7 kΩ R16 25.5 kΩ R17 51.1 kΩ R18 102 kΩ R19 205 kΩ

FIGURE 2-5: R TH Emulator (Rvar).

Each resistor with its switch (in SW2) pointing to the right, away from the silk screen resistor values, is not added into the total for R_A (it shorts that resistor).

Each resistor with its switch (in SW) pointing to the left, towards the silk screen resistor values, is added into the total for R_A .

As an example, if the top ten switches are to the right, and the bottom two are to the left, then Rvar is calculated as 0 + 0 + + 0 + 102,400 + 204,800 = 307,200 .

AN897, "Thermistor Temperature Sensing with MCP6SX2 PGAs" (DS00897) contains information on converting this resistance to the equivalent, nominal thermistor temperature, and vice versa.

2.3.5 Using the MCP9700

The MCP9700 Linear Active Thermistor is a temperature sensor which outputs voltage directly proportional to change in temperature. This sensor provides a 10 mV per degree Celsius temperature coefficient and it measures temperature from -40°C to +125°C, see datasheet (DS21942) for details.

2.3.6 Microchip Thermal Management GUI

The Microchip Thermal Management Graphical User Interface is an easy to use software tool which allows users to evaluate the MCP9700 Thermistor Demo Board and sensor features, as displayed in Figure 2-6.

Thermistor Setup Thermistor Configuration Enable Thermistor Demo bd Update MCP9700 17.5 °C Thermistor 1.177 V PGA Channel and Gain Select Channel Gain Channel 0 Channel 1 1 V/V 2 V/V 4 V/V 5 V/V 8 V/V 10 V/V 16 V/V 32 V/V Step chart Realtime Data Acquisition Thermistor IC Sensor Thermistor Output (V) IC Sensor (V) 0 45 90 135 180 225 270 315 360 405 450 495 Data Buffer Interval (ms): 500

FIGURE 2-6: Microchip Thermal Management GUI.

Once the hardware is connected, the software recognizes the device ID and displays the corresponding GUI for the MCP9700 Thermistor Demo Board. This tool enables the user to evaluate the demo board features and perform temperature datalog. The black "Play", "Stop", and "Reset" icons can be used to perform continuous datalog. And the red "Record" icon enables the user to datalog to an external file. The logging interval can be adjusted using the Interval Scroll bar from 100 ms to 1000 ms.

The Real-time Data Acquisition charting tool can be customized by double clicking the chart, as shown in Figure 2-7. Additional options are available by right clicking the chart. The users can also zoom into a specific plot range by clicking and dragging the section.

Realtime Data Acquisition Customization... General | Plot | Subsets | Points | Axis | Font | Color | Style | Main Title: Realtime Data Acquisition Show Annotations Sub Title: Border Style No Border Line Shadow 3D Inset Viewing Style Color Monochrome Monochrome + Symbols Font Size Large Medium Small Numeric Precision 0 1 2 3 Grid Lines Both Y X None Grid in front of data Display Graph Table Both OK Cancel Apply Help Export... Maximize...

FIGURE 2-7: Chart Setup Options.

NOTES:

Appendix A. Schematic and Layouts

A.1 INTRODUCTION

This appendix contains the following schematics and layouts for the MCP9700 Thermistor Demo Board:

• Board Schematic
• Board - Top Layer
  • Board - Silk-screen Layer
• Board - Bottom Layer

A.2 BOARD SCHEMATIC - PAGE 1

A B C D E F 1 183-00156 1 REV Revision Notes Data 1 Initial Design Release 9/11/07 2 1 SW1 500 1,000 C 493 2,000 C 42K 4,000 C 402K 5,000 C 8.05K 16,000 C 10K SW2 180 240 480 1,500 3,200 6,420 12,600 25,500 51,200 102,488 204,589 168 268 482 161 868 1.8K 2.34K 3.44K 12.3K 25.3K 51.1K 182K 288K JWP1 R20 168K CHO U2 VDD C5 0.1uF U3 CH1 GND MCPRD22 PDPB VDD C8 0.1uF U3 VDD VSS C7 0.1uF MCPRD22 PDPB U1 MCLR/VPP/RE3 RB7/KBL3/PCI RA8/AN8 RB6/KBI2/PCI RA1/AN1 RB5/KBI1/PCI RA2/AN2/VREF-/CVREF RB4/AN11/KBI8 RA3/AN3/VREF+ RB3/AN9/CCP2/VP0 RA4/T8CKI/C1OUT/RCV RB2/AN8/INT2/VM0 RA5/AN4/SS/HLVDIN/C2 RB1/AN10/SCK/SCL VSS RB8/AN12/SDI/SDI OSC1/CLKI VDD 28.VDC OSC2/CLKD/RA6 VSS C1 RCB/T1OSO/T13DKI RC7/RX/DT/SDI RC1/T1OSI/CCP2/UOE RC6/TX/CKI RC2/CCP1 RC5/D+/VP VUSB RC4/D-/VM 15. PIC18F2550-SOIC28 VDD R24 L1 VCC C2 1uF C3 18uF C4 19uF/J3 USB Conn A B C D E F MCP9700 Thermistor Demo Board. Size:C MICROCHIP Eng.Even.Hello Drawn by: J.Gation Hemode: 183-00156-TISOLash Short 1 of 1

A.3 BOARD - TOP SILK-SCREEN LAYER

J5 MCP6S22 PGA Thermistor Demo Board MCP9700 SW2 ON 102,400 204,800 100 1,600 800 400 200 2,000 1,000 500 16,000 8,000 4,000 2,000 SW1 ON R1 R7 R6 R5 R4 R3 R2 R1 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 U3 C8 U2 C5 C6 R20 JMP1 Rvar Thermistor JP1

A.4 BOARD - TOP LAYER

Pure electrical circuit lines without any symbols

A.5 BOARD - BOTTOM SILK

BOARD EDGE J3 C1 C4 L1 C3 R24 C2 C10 C7 C15 C14 Y1

A.6 BOARD - BOTTOM LAYER

104-00156-R1

Appendix B. Bill Of Materials (BOM)

TABLE B-1: BILL OF MATERIALS

Qty	Reference Description		tion Manufacturer Part Number
1 (for	JMP1) Shunt - SO		CKET, SHORT BLKS W TAB BLK	AMP®/Tyco Electronics 881	545-2
1 (for	U1) CONN IC SOCKET 8POS DIP TIN AMP/Tyco Electronics 2-641260-1
4 C1,	C5,C7,C8	CAP	.1UF 25V CERAMIC X7R 0805 Panasonic ® - ECG	ECJ-2VB1E104K
1	C10		CAP .47UF 16V CERAMIC X7R 0805	Panasonic - ECG	ECJ-2YB1C474K
2 C14,	C15	CAP	22PF 50V CERM CHIP 0805 SMD	Panasonic - ECG	ECJ-2VC1H220J
2 C2,	C6	CAP	1.0UF 16V CERAMIC X7R 0805 Kemet ® Electronics Corp	C0805C105K4RACTU
2	C3,C4		CAP 10UF 10V CERAMIC F 0805	Panasonic - ECG	ECJ-2FF1A106Z
6 CH0,	CH1,GND, VDD		PC TEST POINT COMPACT SMT	Keystone Electronics®	5016
4 EA.	Corner	BUMPON TALL TAPER SQ .50X.23 BK (Package comes in 64pcs per unit )		3M	SJ-5518 (BLACK)
1 J3		CONN RECEPT MINI USB2.0 5POS (mini USB)		Hirose Electronic Co Ltd	UX60-MB-5ST
	J5		"DO NOT POPULATE" CONN HEADER VERT 6POS .100 TIN	Tyco® Electronics/Amp	3-644695-6
1 JMP1		CONN HEADER 3POS 0.100 VERT TIN		AMP/Tyco Electronics 3-644456-3
1 JP1		THERMISTOR 10K OHM NTC LEADED		BC Components	2381 640 55103
1 L1		INDUCTOR 10UH 100MA 0805 Murata Electronics ® - North America			LQM21FN100M70L
1	PCB		MCP9700 Thermistor Demo Board	Microchip Techgology Inc.	113-00156
2	R1,R2		RES 499 OHM 1/8W 1% 0805 SMD	Panasonic - ECG	ERJ-6ENF4990V
1	R10		RES 402 OHM 1/8W 1% 0805 SMD	Panasonic - ECG	ERJ-6ENF4020V
1	R11		RES 806 OHM 1/8W 1% 0805 SMD	Panasonic - ECG	ERJ-6ENF8060V
1	R12		RES 1.62K OHM 1/8W 1% 0805 SMD	Panasonic - ECG	ERJ-6ENF1621V
1	R13		RES 3.24K OHM 1/8W 1% 0805 SMD	Panasonic - ECG	ERJ-6ENF3241V
1	R14.		RES 6.49K OHM 1/8W 1% 0805 SMD	Panasonic - ECG	ERJ-6ENF6491V
1	R15		RES 12.7K OHM 1/8W 1% 0805 SMD	Panasonic - ECG	ERJ-6ENF1272V
1	R16		RES 25.5K OHM 1/8W 1% 0805 SMD	Panasonic - ECG	ERJ-6ENF2552V
1	R17		RES 51.1K OHM 1/8W 1% 0805 SMD	Panasonic - ECG	ERJ-6ENF5112V
1	R18		RES 102K OHM 1/8W 1% 0805 SMD	Panasonic - ECG	ERJ-6ENF1023V
1	R19		RES 205K OHM 1/8W 1% 0805 SMD	Panasonic - ECG	ERJ-6ENF2053V
1	R20		RES 100K OHM 1/8W 1% 0805 SMD	Panasonic - ECG	ERJ-6ENF1003V
1	R24		RES 10.0 OHM 1/8W 1% 0805 SMD	Panasonic - ECG	ERJ-6ENF10R0V

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.

TABLE B-1: BILL OF MATERIALS (CONTINUED)

Qty	Reference	Description	Manufacturer	Part Number
1 R3	RES 1.00K OHM 1	/8W 1% 0805 SMD Panasonic - ECG ERJ-6ENF1001V
1 R4	RES 2.00K OHM 1	/8W 1% 0805 SMD Panasonic - ECG ERJ-6ENF2001V
1 R5	RES 4.02K OHM 1	/8W 1% 0805 SMD Panasonic - ECG ERJ-6ENF4021V
1 R6	RES 8.06K OHM 1	/8W 1% 0805 SMD Panasonic - ECG ERJ-6ENF8061V
1 R7	RES 16.2K OHM 1	/8W 1% 0805 SMD Panasonic - ECG ERJ-6ENF1622V
1 R8	RES 100 OHM 1/8	W 1% 0805 SMD Panasonic - ECG ERJ-6ENF1000V
1 R9	RES 200 OHM 1/8	W 1% 0805 SMD Panasonic - ECG ERJ-6ENF2000V
1 SW	1 SWITCH 6 POS	DIP EXTENDEDSEALED	Grayhill, Inc 78B06ST
1 SW	2 SWITCH 12 POS	DIP EXTENDEDUNSLD	Grayhill, Inc 78B12ST
1 U1	28/40/44-Pin, High	Performance,Enhanced Flash, USB Microcontrollers with nanoWatt Technology	Microchip Technology Inc. PIC18F2550-I/SO
1 U2	PGA, Rail-to-Rail I/O, Digital control Microchip Technology		Inc. MCP6S22-I/P
1 U3	Low-Power Linear	Active Ther-mistorTM Ics	Microchip Technology Inc. MCP9700-E/TO
1 Y1	CRYSTAL 20.0000	MHZ SERIES SMT	CTS-Frequency Controls ATS200SM

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.

NOTES:

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Los Angeles

Mission Viejo, CA

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Santa Clara

Santa Clara, CA

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Toronto

Mississauga, Ontario,

Canada

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ASIA/PACIFIC

Asia Pacific Office

Suites 3707-14, 37th Floor

Tower 6, The Gateway

Harbour City, Kowloon

Hong Kong

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Australia - Sydney

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China - Beijing

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China - Chengdu

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China - Hong Kong SAR

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China - Nanjing

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China - Qingdao

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China - Shanghai

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China - Shenyang

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China - Shenzhen

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China - Wuhan

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China - Xiamen

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China - Xian

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China - Zhuhai

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ASIA/PACIFIC

India - Bangalore

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India - New Delhi

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India - Pune

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Japan - Yokohama

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Korea - Daegu

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Korea - Seoul

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82-2-558-5934

Malaysia - Kuala Lumpur

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Malaysia - Penang

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Philippines - Manila

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Singapore

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Taiwan - Hsin Chu

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Taiwan - Kaohsiung

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Taiwan - Taipei

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Thailand - Bangkok

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EUROPE

Austria - Wels

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UK - Wokingham

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