Microchip TC652 Manual
Microchip
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TC652
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2002 Microchip Technology Inc. DS21506B
TC652 Fan Control Demo Board
User’s Guide

DS21506B - page ii 2002 Microchip Technology Inc.
Information contained in this publication regarding device
applications and the like is intended through suggestion only
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
No representation or warranty is given and no liability is
assumed by Microchip Technology Incorporated with respect
to the accuracy or use of such information, or infringement of
patents or other intellectual property rights arising from such
use or otherwise. Use of Microchip’s products as critical com-
ponents in life support systems is not authorized except with
express written approval by Microchip. No licenses are con-
veyed, implicitly or otherwise, under any intellectual property
rights.
Trademarks
The Microchip name and logo, the Microchip logo, KEEL ,OQ
MPLAB, PIC, PICmicro, PICSTART and PRO MATE are
registered trademarks of Microchip Technology Incorporated
in the U.S.A. and other countries.
FilterLab, microID, MXDEV, MXLAB, PICMASTER, SEEVAL
and The Embedded Control Solutions Company are
registered trademarks of Microchip Technology Incorporated
in the U.S.A.
dsPIC, dsPICDEM.net, ECONOMONITOR, FanSense,
FlexROM, fuzzyLAB, In-Circuit Serial Programming, ICSP,
ICEPIC, microPort, Migratable Memory, MPASM, MPLIB,
MPLINK, MPSIM, PICC, PICDEM, PICDEM.net, rfPIC, Select
Mode and Total Endurance are trademarks of Microchip
Technology Incorporated in the U.S.A. and other countries.
Serialized Quick Turn Programming (SQTP) is a service mark
of Microchip Technology Incorporated in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2002, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received QS-9000 quality system
certification for its worldwide headquarters,
design and wafer fabrication facilities in
Chandler and Tempe, Arizona in July 1999
and Mountain View, California in March 2002.
The Company’s quality system processes and
procedures are QS-9000 compliant for its
PICmicro® 8-bit MCUs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals,
non-volatile memory and analog products. In
addition, Microchip’s quality system for the
design and manufacture of development
systems is ISO 9001 certified.
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 knowl-
edge, 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.

2002 Microchip Technology Inc. DS21506B-page iii
TC652 Fan Control Demo Board
User’s Guide
Table of Contents
Chapter 1. General Information
1.1 Introduction ..................................................................................... 1
1.2 TC652 Fan Control Demo Board .................................................... 2
1.3 Reference Documents .................................................................... 3
Chapter 2. Getting Started
2.1 TC652 Functional Description ........................................................ 5
2.2 Typical Module Configurations ....................................................... 6
Appendix A. Board Layout
A.1 Introduction ..................................................................................... 9
A.2 Board Layout and Schematics ........................................................ 9
A.3 Demo Board Components ............................................................ 10
Worldwide Sales and Service ............................................................................. 12

2002 Microchip Technology Inc. DS21506B-page 1
TC652 Fan Control Demo Board
User’s Guide
Chapter 1. General Information
1.1 INTRODUCTION
Thank you for purchasing the TC652 Fan Control Demo Board from Microchip
Technology Inc. The Fan Control Demo Board is an evaluation tool that allows the
user to quickly prototype fan control circuits based on Microchip’s TC652 or TC653
pulse width modulation (PWM) Fan Control ICs.
A logic level MOSFET drive device allows the Fan Control Demo Board to be used with
virtually any brushless DC fan. A red LED status indicator gives a visual indication of a
fan fault condition (open stator or blocked rotor). A green LED status indicator gives a
visual indication of an over temperature alert (temperature is approximately 10°C
higher than the high temperature limit).
The TC652 Fan Control Demo Board has the following features:
1. Complete implementation of TC652 or TC653 fan control circuitry on a 1.0" x 1.2"
board.
2. Temperature proportional fan speed control.
3. Over temperature alert.
4. Installs directly into user's end equipment.
5. Speeds up prototyping, system development and system thermal
characterization.

TC652 Fan Control Demo Board User’s Guide
DS21506B-page 2 2002 Microchip Technology Inc.
1.2 TC652 FAN CONTROL DEMO BOARD
The TC652 Fan Control Board (Figure 1-1) measures only 1.0 inch x 1.2 inch, allowing
direct installation to the user’s end equipment for system evaluation. An external 2.8V
to 5.5V power supply is required for the operation of the TC652.
The TC652 Demo Board is equipped with the following components:
1. 1 µF, 1206 Chip Capacitor.
2. 1 kΩ, 1206 Chip Resistor (R1).
3. 1 kΩ, 1206 Chip Resistor (R2).
4. 4.5 mA Miniature Red LED.
5. 4.5 mA Miniature Green LED.
6. Logic Level MOSFET (Q1).
7. 4.7Ω Leaded Resistor (RSENSE).
8. 0.01 µF, 1206 Chip Capacitor (CSENSE).
9. TC652AEVUA Fan Control IC.
If any component is damaged or missing, please contact your nearest Microchip sales
office listed on the back of this publication.
FIGURE 1-1: The TC652 Fan Control Demo Board

TC652 Fan Control Demo Board User’s Guide
DS21506B-page 4 2002 Microchip Technology Inc.
NOTES:
Produkt Specifikationer
Mærke: | Microchip |
Kategori: | Ikke kategoriseret |
Model: | TC652 |
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