SMSC EMC2102 User Manual download pdf (Page 6)

Fan Speed Control with the EMC2102 Device

Revision 0.2 (09-17-07)

USER MANUAL SMSC EMC2102

1 Overview

SMSC has introduced a series of Environmental Monitoring and Control (EMC) devices with integrated

fan control. This fan controller family devices feature the advanced closed-loop fan control technology

developed by SMSC’s engineering team.

This user manual provides detailed information about fan control features supported by one of those

EMC devices -- EMC2102, with detailed hand-on experiments for configuring the devices in real

applications.

2 Audience

This user manual assumes that the reader is familiar with the functionality of the EMC2102 device and

its evaluation board. The goal of the user manual is to help users to evaluate the new EMC device

using Chip Manager (ChipMan) software provided by SMSC. This user manual also can be used as a

reference material for other EMC devices which have fan control features.

3 References

The following documents should be referenced when using this user manual:

 EMC2102 Device Datasheet

 EVB-EMC2102 Evaluation Board User Manual

 EVB-EMC2102 Evaluation Board Schematics

 ChipMan Software User Manual

4 The Evaluation System

The evaluation system used for this user manual has two major parts, as shown in Figure 4.1,

"EMC2102 Fan Control Evaluation System":

 An EMC2102 evaluation board (EVB-EMC2102) with on-board 5V DC fan (Figure 4.2)

 A PC with SMSC ChipMan software installed (requiring XML file for EMC2102 device)

This user manual contains several groups of user experiments which cover most of the fan control

features of the EMC2102 fan controller device. All examples are based on the 2102 device evaluation

board (EVB-EMC2102) and its software, but the methods and the results will apply to other EMC2102

applications.

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SMSC EMC2102 User Manual Page 6