Microchip EMC2303 Manual
Microchip
Ikke kategoriseret
EMC2303
Læs gratis den danske manual til Microchip EMC2303 (45 sider) i kategorien Ikke kategoriseret. Denne vejledning er vurderet som hjælpsom af 10 personer og har en gennemsnitlig bedømmelse på 5.0 stjerner ud af 5.5 anmeldelser. Har du et spørgsmål om Microchip EMC2303, eller vil du spørge andre brugere om produktet?
Side 1/45
2018 Microchip Technology Inc. DS50002754A
ADM00879
Demonstration Board
User’s Guide
DS50002754A-page 2 2018 Microchip Technology Inc.
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and may be superseded by updates.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 unless otherwise stated.
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.
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.
QUALITYMANAGEMENTS
YSTEM
CERTIFIED BY DNV
==
==
==
====
ISO/TS16949==
==
==
====
Trademarks
The Microchip name and logo, the Microchip logo, AnyRate, AVR,
AVR logo, AVR Freaks, BeaconThings, BitCloud, CryptoMemory,
CryptoRF, dsPIC, FlashFlex, flexPWR, Heldo, JukeBlox, KEELOQ,
K LEE OQ logo, Kleer, LANCheck, LINK MD, maXStylus,
maXTouch, MediaLB, megaAVR, MOST, MOST logo, MPLAB,
OptoLyzer, PIC, picoPower, PICSTART, PIC32 logo, Prochip
Designer, QTouch, RightTouch, SAM-BA, SpyNIC, SST, SST
Logo, SuperFlash, tinyAVR, UNI/O, and XMEGA are registered
trademarks of Microchip Technology Incorporated in the U.S.A.
and other countries.
ClockWorks, The Embedded Control Solutions Company,
EtherSynch, Hyper Speed Control, HyperLight Load, IntelliMOS,
mTouch, Precision Edge, and Quiet-Wire are registered
trademarks of Microchip Technology Incorporated in the U.S.A.
Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any
Capacitor, AnyIn, AnyOut, BodyCom, chipKIT, chipKIT logo,
CodeGuard, CryptoAuthentication, CryptoCompanion,
CryptoController, dsPICDEM, dsPICDEM.net, Dynamic Average
Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial
Programming, ICSP, Inter-Chip Connectivity, JitterBlocker,
KleerNet, KleerNet logo, Mindi, MiWi, motorBench, MPASM, MPF,
MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach,
Omniscient Code Generation, PICDEM, PICDEM.net, PICkit,
PICtail, PureSilicon, QMatrix, RightTouch logo, REAL ICE, Ripple
Blocker, SAM-ICE, Serial Quad I/O, SMART-I.S., SQI,
SuperSwitcher, SuperSwitcher II, 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 trademark 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.
© 2018, Microchip Technology Incorporated, All Rights Reserved.
ISBN: 978-1-5224-2988-3
ADM00879
DEMONSTRATION BOARD
USER’S GUIDE
2018 Microchip Technology Inc. DS50002754A-page 3
Table of Contents
Preface ........................................................................................................................... 5
Chapter 1. Product Overview
1.1 Introduction ..................................................................................................... 9
1.2 EMC2305 Device Short Overview .................................................................. 9
1.3 EMC1438 Device Short Overview .................................................................. 9
1.4 What Is the ADM00879 Demonstration Board? ............................................. 9
1.5 ADM00879 Demonstration Board Kit Contents ............................................ 10
Chapter 2. Installation and Operation
2.1 Introduction ................................................................................................... 11
2.2 System Requirements .................................................................................. 11
2.3 Microchip Thermal Management Utility GUI Installation .............................. 11
Chapter 3. Microchip Thermal Management Utility
3.1 Introduction ................................................................................................... 15
3.2 First Launch .................................................................................................. 15
3.3 Control Toolbar ............................................................................................. 17
3.3.1 Save/Load Settings ................................................................................... 17
3.3.2 Data Acquisition ........................................................................................ 17
3.3.3 Data Logging ............................................................................................. 17
3.3.4 Temperature Related Options ................................................................... 17
3.3.5 Fan Related Options ................................................................................. 18
3.4 Demo View ................................................................................................... 19
3.4.1 Demo Options ........................................................................................... 20
3.4.2 Temperature Charts .................................................................................. 21
3.4.3 Fan Driver Tab .......................................................................................... 24
Chapter 4. Hardware Description
4.1 ADM00879 Demonstration Board Description ............................................. 25
4.1.1 Fan Connection Options ............................................................................ 26
4.1.2 PWM Fan Driver ........................................................................................ 26
4.1.3 On-Board Temperature Channels ............................................................. 27
4.1.4 On-Board Demonstration Heat Source and Remote Diode ....................... 27
4.1.5 External Temperature Remote Diode Connections ................................... 28
4.1.6 Optional Desktop PC Integration ............................................................... 28
Appendix A. Schematics and Layouts
A.1 Introduction .................................................................................................. 29
A.2 Board – Schematic – EMC2305 and EMC1438 ........................................... 30
A.3 Board – Schematic – Fan Driver (Fan 1) ..................................................... 31
A.4 Board – Schematic – Fan Driver (Fan 2) ..................................................... 31
ADM00879 Demonstration Board User’s Guide
DS50002754A-page 4 2018 Microchip Technology Inc.
A.5 Board – Schematic – Fan Driver (Fan 3) ..................................................... 32
A.6 Board – Schematic – Fan Driver (Fan 4) ..................................................... 32
A.7 Board – Schematic – Fan Driver (Fan 5) ..................................................... 33
A.8 Board – Schematic – Interface and Power .................................................. 34
A.9 Board – Schematic – Mechanical ................................................................ 35
A.10 Board – Top Silk ........................................................................................ 36
A.11 Board – Top Copper and Silk ..................................................................... 36
A.12 Board – Top Copper .................................................................................. 37
A.13 Board – Bottom Copper ............................................................................. 37
A.14 Board – Bottom Copper and Silk ............................................................... 38
A.15 Board – Bottom Silk ................................................................................... 38
Appendix B. Bill of Materials (BOM) ...........................................................................39
Worldwide Sales and Service .....................................................................................43
ADM00879
DEMONSTRATION BOARD
USER’S GUIDE
2018 Microchip Technology Inc. DS50002754A-page 5
Preface
INTRODUCTION
This chapter contains general information that will be useful to know before using the
ADM00879 Fan Controller Demonstration Board. Items discussed in this chapter
include:
•Document Layout
•Conventions Used in this Guide
•Warranty Registration
•Recommended Reading
•The Microchip Web Site
•Customer Support
•Document Revision History
DOCUMENT LAYOUT
This document describes how to use the ADM00879 Fan Controller Demonstration
Board as a development tool to emulate and debug firmware on a target board. The
manual layout is as follows:
•Chapter 1. “Product Overview” – Important information about the ADM00879
Fan Controller Demonstration Board.
•Chapter 2. “Installation and Operation” – Includes instructions on installing and
starting the Microchip Thermal Management Utility application.
•Chapter 3. “Microchip Thermal Management Utility”– includes instructions on
operating the Thermal Management Utility.
•Chapter 4. “Hardware Description”– Contains a detailed description of the
ADM00879 Fan Controller Demonstration Board
•Appendix A. “Schematic and Layouts” – Shows the schematics and layout
diagrams for the ADM00879 Fan Controller Demonstration Board.
•Appendix B. “Bill of Materials (BOM)” – Lists the parts used to build the
ADM00879 Fan Controller Demonstration Board.
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 website
(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
“DSXXXXXXXXA”, where “XXXXXXXX” 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.
ADM00879 Demonstration Board User’s Guide
DS50002754A-page 6 2018 Microchip Technology Inc.
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
WARRANTY REGISTRATION
Please complete the enclosed Warranty Registration Card and mail it promptly.
Sending in the Warranty Registration Card entitles users to receive new product
updates. Interim software releases are available at the Microchip web site.
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 <Enter>, <F1>
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)
{ ...
}
Preface
2018 Microchip Technology Inc. DS50002754A-page 7
RECOMMENDED READING
This user’s guide describes how to use the ADM00879 Fan Controller Demonstration
Board. Other useful documents are listed below. The following Microchip document is
available and recommended as a supplemental reference resource:
EMC1438 Data Sheet – “1°C Multiple Temperature Sensor with Hardware
Controlled Standby and Hottest of Multiple Zones” (DS20005513A)
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 website 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
PRODUCT CHANGE NOTIFICATION SERVICE
Microchip’s customer notification service helps keep customers current on Microchip
products. Subscribers will receive e-mail notifications whenever there are changes,
updates, revisions or errata related to a specified product family or development tool of
interest.
To register, access the Microchip web site at www.microchip.com, click on Product
Change Notification and follow the registration instructions.
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 (May 2018)
• Initial Release of this Document.
ADM00879 Demonstration Board User’s Guide
DS50002754A-page 8 2018 Microchip Technology Inc.
ADM00879
DEMONSTRATION BOARD
USER’S GUIDE
2018 Microchip Technology Inc. DS50002754A-page 9
Chapter 1. Product Overview
1.1 INTRODUCTION
This chapter provides an overview of the ADM00879 Fan Controller Demonstration
Board and covers the following topics:
- EMC2305 Device Short Overview
- EMC1438 Device Short Overview
- What Is the ADM00879 Demonstration Board?
- ADM00879 Demonstration Board Kit Contents
1.2 EMC2305 DEVICE SHORT OVERVIEW
The EMC2305 device is an SMBus (System Management Bus) compliant and I2C
(Inter-integrated Circuit) compatible fan controller, with up to five independently con-
trolled PWM (Pulse Width Modulation) fan drivers. Each fan driver is controlled by a
programmable frequency PWM driver and FSC (Fan Speed Control) algorithm, which
operates in either a closed loop fashion or as a directly PWM-controlled device.
The closed loop FSC algorithm has the capability to detect aging fans and alert the
system. Likewise, it detects stalled or locked fans and triggers an interruption.
1.3 EMC1438 DEVICE SHORT OVERVIEW
The EMC1438 device is a high-accuracy, low-cost, SMBus temperature sensor (I2C
compatible). Advanced features such as Resistance Error Correction (REC), Beta
Compensation and automatic diode type detection combine to provide a robust solution
for complex environmental-monitoring applications.
EMC1438 monitors up to eight temperature channels (up to seven external and one
internal). The device provides ±1°C accuracy for the internal and external diode
temperatures.
1.4 WHAT IS THE ADM00879 DEMONSTRATION BOARD?
The ADM00879 Fan Controller Demonstration Board provides an example of a
fan-control application, by using the EMC2305 fan controller and EMC1438 tempera-
ture sensor. There are 5 fan channels, 2 on-board temperature sensors and 6 remote
temperature sensor inputs available.
The low-voltage circuits are powered from either the micro USB connector or the
2.1 mm Jack for 12V fan supply (power adapter not included), making it possible to run
the PC application and set all the parameters without powering the fan drivers. Test
points for the 12V input are also available.
I2C communication is provided over USB using the on-board MCP2221 USB to I2C
bridge. The Thermal Management Utility graphic user interface (GUI) automatically
detects the board and loads the appropriate interface.
An on-board heat source with 4 heat levels is provided for demonstrative purposes.
ADM00879 Demonstration Board User’s Guide
DS50002754A-page 10 2018 Microchip Technology Inc.
The demonstration GUI is equipped with options to manually setup all the parameters
for the thermal sensor and the fan controller. The GUI also provides a fully automatic
temperature control interface, where any fan channel can be linked to any temperature
channel.
1.5 ADM00879 DEMONSTRATION BOARD KIT CONTENTS
The ADM00879 Demonstration Board kit includes the following:
- One ADM00879 Fan Controller Demonstration Board
- Important Information Sheet
- USB cable
- Two NPN transistors in TO-92 package to be used as remote temperature
diodes.
Note: An additional power supply or bench supply is needed for powering the fans.
ADM00879
DEMONSTRATION BOARD
USER’S GUIDE
2018 Microchip Technology Inc. DS50002754A-page 11
Chapter 2. Installation and Operation
2.1 INTRODUCTION
This section describes how to install the Microchip Thermal Management Utility GUI,
required in order to interact with the ADM00879 Demonstration Board.
2.2 SYSTEM REQUIREMENTS
The ADM00879 Demonstration Board is designed to be used with a personal computer
(desktop or laptop) running Microsoft® Windows® 7 or later. For USB connectivity, the
minimal physical requirement for the PC is a standard type-A USB 2.0 port.
2.3 MICROCHIP THERMAL MANAGEMENT UTILITY GUI INSTALLATION
Go to www.microchip.com and search for EMC2305 or EMC1438 and download the
Thermal Management Utility (version 1.5.6 or newer).
If an older version of the software is already installed, you have to remove it before
installing the new one.
Follow the next steps to proceed with the installation.
FIGURE 2-1: THERMAL MANAGEMENT UTILITY – SETUP WINDOW
Click the Next button to continue.
ADM00879 Demonstration Board User’s Guide
DS50002754A-page 12 2018 Microchip Technology Inc.
FIGURE 2-2: THERMAL MANAGEMENT UTILITY – LICENSE AGREEMENT
WINDOW
Read and accept the License Agreement. Click the Next button to proceed.
FIGURE 2-3: THERMAL MANAGEMENT UTILITY – INSTALLATION
DIRECTORY WINDOW
Choose the desired installation directory and click Next.
Installation and Operation
2018 Microchip Technology Inc. DS50002754A-page 13
FIGURE 2-4: THERMAL MANAGEMENT UTILITY – READY TO INSTALL
WINDOW
Once the installation directory has been chosen, click Next to begin the installation.
FIGURE 2-5: THERMAL MANAGEMENT UTILITY – INSTALLING WINDOW
Wait for the setup wizard to finish the installation.
ADM00879 Demonstration Board User’s Guide
DS50002754A-page 14 2018 Microchip Technology Inc.
FIGURE 2-6: THERMAL MANAGEMENT UTILITY – INSTALL COMPLETE
WINDOW
Once the installation is completed, click Finish to exist the setup wizard.
ADM00879
DEMONSTRATION BOARD
USER’S GUIDE
2018 Microchip Technology Inc. DS50002754A-page 15
Chapter 3. Microchip Thermal Management Utility
3.1 INTRODUCTION
The Microchip Thermal Management Utility GUI allows the user to evaluate the
EMC2305 and EMC1438 devices for temperature and fan control applications.
3.2 FIRST LAUNCH
The ADM00879 Demonstration Board is required, in order to start the graphical user
interface.
When the GUI is launched for the first time after the installation, or a new board is con-
nected, it contains the fan driver and the temperature sensor currently set values. To
use the Demo mode, as described in Section 3.4 “Demo View”, the proper settings
must be loaded. The installer automatically adds the ADM00879_Default_Set-
tings.bin file in the C:\Users\<username>\Documents\ThermalManagementUtil-
ity\Board Settings folder. Use the Load button from the top menu to open the file and
apply these settings to your board.
Once the hardware is connected, the software recognizes the device ID and displays
the corresponding GUI for the ADM00879 Fan Controller Demonstration Board. When
a board is connected, its fan driver and temperature sensor settings are read and
displayed in the GUI.
Disconnecting the USB will close the GUI and display a Hardware Not Detected dialog
box, as displayed in Figure 3-1.
FIGURE 3-1: HARDWARE NOT CONNECTED DIALOG BOX
The Thermal Management Utility main window (Figure 3-2) consists of a Control
Toolbar (marked in Figure 3-2 with the number 1), a View Selection section (marked by
the number 2), a Demo Options section (3) and a Temperature/RPM Plots section (4).
DS50002754A-page 16 2018 Microchip Technology Inc.
FIGURE 3-2: THERMAL MANAGEMENT UTILITY MAIN WINDOW
1
2
3
Microchip Thermal Management Utility
2018 Microchip Technology Inc. DS50002754A-page 17
3.3 CONTROL TOOLBAR
FIGURE 3-3: CONTROL TOOLBAR SECTION
3.3.1 Save/Load Settings
The Save/Load Settings section is noted in Figure 3-3 with the number 1. This
section allows the saving of all the currently configured GUI settings. The set-
tings will be stored in a file.bin file and can be reloaded to reconfigure the
board. The loading process repopulates all the available fields and writes the
settings into the connected ADM00879 Demonstration Board. This process
takes up to 30 seconds to complete.
3.3.2 Data Acquisition
The Data Acquisition section (noted in Figure 3-3 with the number 2) provides
controls for starting, stopping and resetting the chart data.
Starting the data capture provides continuous reading of data from the tem-
perature sensor and fan driver, updates the charts and activates the Demo
View functionality. When data capture is stopped, the three demonstration
modes (auto, constant and manual) are not operational.
The Reset Plot Data button clears the data from any visible chart in the
currently selected view.
3.3.3 Data Logging
The Data Logging section (number 3) enables or disables the data logging.
Clicking the Record Acquisition button opens a file selection window, where
the destination of the log file can be set. The logs are saved as file.txt files
and contain the temperature readings for all of the EMC1438’s channels.
3.3.4 Temperature Related Options
The Temperature Related Options section is marked in Figure 3-3 with the
number 4.
The One Shot button writes to the One Shot Register of the EMC1438’s tem-
perature sensor. This can be used to trigger an update for the temperature
measurements when the device is in Standby mode. To view the measure-
ments, click the Update Registers button from the Temp Sensor tab. In Active
mode, the functionality of the One Shot button is disabled.
The Heat Source Power Dissipation controls the on-board heat source con-
nected to channel 1 of the temperature sensor. Table 3-1 shows the
approximate temperatures that can be reached when heating is enabled.
1
2
3
4
5
5.1
TABLE 3-1: HEAT SOURCE TEMPERATURES
Heat %
Temperature (°C)
Fan 1 – OFF Fan 1 – 100%
0 Ambient temperature –
25 33–33.5 30.5–0.75
ADM00879 Demonstration Board User’s Guide
DS50002754A-page 18 2018 Microchip Technology Inc.
3.3.5 Fan Related Options
The Fan Related Options section is marked by the number 5.
The Detect Fan Min/Max button opens a dialog box (Figure 3-4), which allows
the detection of the minimum and maximum RPM (Revolutions Per Minute)
values for one or several connected fans. Each selected fan is initially set to
the minimum drive value (configured in the Fan Driver tab, under the Min Drive
percentage field), the RPM being measured subsequently. If the fan doesn’t
start, then the Min Drive percentage needs to be increased with the selected
Accuracy step, until the fan starts. After the minimum RPM, Valid Tachometer
count and minimum Drive values are determined, they are stored. In order to
determine the maximum RPM value, the fan drive is set to 100% and the RPM
is measured. Note that, considering that some fans reach their rated maximum
speed after a longer run time, the maximum RPM value detected can be
slightly lower than the fan specification.
FIGURE 3-4: DETERMINE FAN MIN/MAX RPM DIALOG BOX
The Demo RPM Offset button (marked as 5.1 in Figure 3-3) opens a dialog
box (Figure 3-5), where the Min RPM offset values can be configured. This
relates only to the fan control algorithm implemented in software for the demo
application example. For the Auto and Constant demo modes, the algorithm
uses a minimum RPM target that consists of the minimum RPM value specified
in the fan configuration tab (Figure 3-15, number 6) summed with the Offset
value. Due to the RPM jitter, if the fan target is set to the Min RPM value, a false
fan stall detection may occur, causing the fan to be sped up unnecessarily, as
the drive level used for the initial spin-up (Figure 3-15, number 5) has a
minimum value of 30% (which is larger than the Min Drive setting).
50 40.875–41.125 34.75–35
75 50–51 38.875–39.125
100 60–61 44.25–44.5
TABLE 3-1: HEAT SOURCE TEMPERATURES (CONTINUED)
Heat %
Temperature (°C)
Fan 1 – OFF Fan 1 – 100%
Microchip Thermal Management Utility
2018 Microchip Technology Inc. DS50002754A-page 19
This jitter is fan dependent, so each fan channel has its own offset value. The
required offset value can be identified using the Fan Configuration or the
Manual mode, which can drive the fan target up to the Min RPM value.
FIGURE 3-5: DEMO SETTINGS DIALOG BOX
3.4 DEMO VIEW
The Demo View section ( ) consists of a Demo Options area (1) and Figure 3-6
a Temp/RPM Charts area (2).
FIGURE 3-6: DEMO VIEW SECTION
1
2
ADM00879 Demonstration Board User’s Guide
DS50002754A-page 22 2018 Microchip Technology Inc.
FIGURE 3-11: CHART OPTIONS
Microchip Thermal Management Utility
2018 Microchip Technology Inc. DS50002754A-page 23
3.4.2.1 TEMPERATURE SENSOR (EMC1438) VIEW
This view contains all values and settings related to the on-board temperature
sensor.
FIGURE 3-12: TEMPERATURE SENSOR VIEW – TEMPERATURES TAB
The Temperatures tab of the Temperature Sensor View provides an overview
of all the temperature related readings from the EMC1438 device:
• The temperature values are presented in both the Temperature table and
in the Data Acquisition chart. The chart can be configured to display any
combination of the device channels by enabling the corresponding
channel check box from the Temperature Plot Options section.
• The Hottest Diode section allows turning the hottest diode detection ON
or OFF and provides information about the hottest temperature and the
diode it was detected on.
• The device’s status is displayed in the Status section, where a green icon
represents normal operation (limit not exceed, no fault condition) and a
red icon signals that a limit has been reached or a fault condition has
been detected.
• The device data can be read continuously, by clicking the Start button
from the toolbar or manually sampled by clicking the Update Registers
button. The chart is only updated during continuous sampling.
ADM00879 Demonstration Board User’s Guide
DS50002754A-page 24 2018 Microchip Technology Inc.
The Sensor Settings tab provides access to all of the device's settings, limit
configuration and alert options.
FIGURE 3-13: SENSOR SETTINGS TAB
The Register List tab gives an overview of all the device registers, their
addresses and their values. The values are updated continuously after the
Start button is clicked or updated after clicking the Update Registers button
from the EMC1438 tab. Each register can also be individually read by selecting
the register and right-clicking, then selecting Read.
FIGURE 3-14: REGISTERS LIST TAB
Microchip Thermal Management Utility
2018 Microchip Technology Inc. DS50002754A-page 25
3.4.3 Fan Driver Tab
The Fan Driver tab (Figure 3-15) provides easy access to the EMC2305
device’s settings and readings.
Each section of the Fan Driver tab is highlighted in Figure 3-15 by a red rect-
angle and a number, with each corresponding number being described below.
FIGURE 3-15: FAN DRIVER TAB
1. The Fan Tachometer Results section shows the last read values of the
tachometer for all fan driver channels.
2. The General Settings section allows toggling the alert settings and the
SMBus timeout.
3. The Status table displays the status of the fan driver: a green icon
indicates normal operation and a red icon indicates a flagged fan event.
4. The PWM Settings section contains all PWM related settings for the
selected fan driver channel.
5. The General Configuration section gives access to the rest of the driver's
settings.
6. The Fan Related Settings section contains the drive and RPM/Tach
options needed to properly drive the connected fan. The Min RPM field
is connected to the Valid Tach Count field; if either value is changed, the
other is updated as well. The same is true for the Target RPM field and
the Tach Target field. The RPM value represents the read RPM value of
the fan.
1
2
3
4
5
6
ADM00879 Demonstration Board User’s Guide
DS50002754A-page 26 2018 Microchip Technology Inc.
ADM00879
DEMONSTRATION BOARD
USER’S GUIDE
2018 Microchip Technology Inc. DS50002754A-page 25
Chapter 4. Hardware Description
4.1 ADM00879 DEMONSTRATION BOARD DESCRIPTION
The printed circuit board form factor is compatible with a PCI (Peripheral Component
Interconnect) card slot in a desktop PC. With the addition of a PCI bracket and an IDE
(Integrated Drive Electronics) connector (J7 - not populated), the board can be
mounted inside a desktop PC case. The J10 connector footprint is compatible with an
on-board USB connector.
Power for this board can come from four sources. The 2.1 mm jack (J8) is used to
power the board during normal operation with 12V, while the micro USB connector (J9)
is used for powering the low-voltage digital circuits, in case the 12V supply is missing.
There are also two test points (TP1 and TP2) available that are connected in parallel
with the jack, for a direct connection to a lab power supply. The IDE connector J7 (not
populated) can also be used to draw 12V to the board.
The maximum voltage supported on the jack and the power test point connections is
16V, limited by the 3.3V regulator that is powering the low voltage circuits.
The communication with the PC is provided through the MCP2221 device, an USB to
I2C bridge.
There are five fan channels available, each with its own switch mode PWM driver and
6 remote diode channels accessible through J1, J2 and J3 connector blocks. All five
fan driver channels are symmetrical and share the same designators on the silkscreen.
FIGURE 4-1: ADM00879 DEMONSTRATION BOARD TOP VIEW
ADM00879
DEMONSTRATION BOARD
USER’S GUIDE
2018 Microchip Technology Inc. DS50002754A-page 29
Appendix A. Schematics and Layouts
A.1 INTRODUCTION
This appendix contains the following schematics and layouts for ADM00879
Demonstration Board:
- Board – Schematic – EMC2305 and EMC1438
- Board – Schematic – Fan Driver (Fan 1)
- Board – Schematic – Fan Driver (Fan 2)
- Board – Schematic – Fan Driver (Fan 3)
- Board – Schematic – Fan Driver (Fan 4)
- Board – Schematic – Fan Driver (Fan 5)
- Board – Schematic – Interface and Power
- Board – Schematic – Mechanical
- Board – Top Silk
- Board – Top Copper and Silk
- Board – Top Copper
- Board – Bottom Copper
- Board – Bottom Copper and Silk
- Board – Bottom Silk
Produkt Specifikationer
| Mærke: | Microchip |
| Kategori: | Ikke kategoriseret |
| Model: | EMC2303 |
Har du brug for hjælp?
Hvis du har brug for hjælp til Microchip EMC2303 stil et spørgsmål nedenfor, og andre brugere vil svare dig
Ikke kategoriseret Microchip Manualer
17 Juni 2025
17 Juni 2025
17 Juni 2025
17 Juni 2025
17 Juni 2025
17 Juni 2025
17 Juni 2025
17 Juni 2025
17 Juni 2025
17 Juni 2025
Ikke kategoriseret Manualer
- Vistus
- Lindell Audio
- Bushnell
- Mercusys
- SABO
- City Theatrical
- Senal
- George Foreman
- Audiovox
- Smartwares
- Phil And Teds
- INOGENI
- Qu-Bit
- Adastra
- Tot Tutors
Nyeste Ikke kategoriseret Manualer
17 Juni 2025
17 Juni 2025
17 Juni 2025
17 Juni 2025
17 Juni 2025
17 Juni 2025
17 Juni 2025
17 Juni 2025
17 Juni 2025
17 Juni 2025