资料介绍
Thank you for purchasing the TC652 Fan Control Demo Board from Microchip
Technology Inc. The Fan Control Demo Boar d is an evaluation tool that allows the
user to quickly prototype fan control circuits based on Microchip’s TC652 or TC653
pulse width modulation (P WM) 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
2002 Microchip Technology Inc. DS21506B
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
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