MTD6505
3-Phase BLDC
Sensorless Fan Controller
Demonstration Board
User’s Guide
© 2011 Microchip Technology Inc.
DS52009A
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.
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and may be superseded by updates.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.
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART,
PIC32 logo, rfPIC and UNI/O are registered trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor,
MXDEV, MXLAB, SEEVAL and The Embedded Control
Solutions Company are registered trademarks of Microchip
Technology Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, chipKIT,
chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net,
dsPICworks, dsSPEAK, ECAN, ECONOMONITOR,
FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP,
Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB,
MPLINK, mTouch, Omniscient Code Generation, PICC,
PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE,
rfLAB, Select Mode, Total Endurance, TSHARC,
UniWinDriver, WiperLock 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.
All other trademarks mentioned herein are property of their
respective companies.
© 2011, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
ISBN: 978-1-61341-886-4
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.
DS52009A-page 2
© 2011 Microchip Technology Inc.
MTD6505 3-PHASE BLDC
SENSORLESS FAN CONTROLLER
DEMO BOARD USER’S GUIDE
Table of Contents
Preface ........................................................................................................................... 5
Introduction............................................................................................................ 5
Document Layout .................................................................................................. 5
Conventions Used in this Guide ............................................................................ 6
Recommended Reading........................................................................................ 7
The Microchip Web Site ........................................................................................ 7
Customer Support ................................................................................................. 7
Document Revision History ................................................................................... 7
Chapter 1. Product Overview
1.1 Introduction ..................................................................................................... 9
1.2 MTD6505 3-Phase BLDC Sensorless Fan Controller
Demonstration Board Hardware Description .......................................... 10
1.3 What the MTD6505 3-Phase BLDC Sensorless Fan Controller
Demonstration Board Kit Includes .......................................................... 10
Chapter 2. Installation and Operation
2.1 Getting Started ............................................................................................. 11
2.1.1 Software Installation .................................................................................. 11
2.1.2 Board Installation ....................................................................................... 11
2.2 MTD6505 3-Phase BLDC Sensorless Fan Controller Demonstration Board
Software Description .............................................................................. 13
2.2.1 Controlling and Monitoring Tab ................................................................. 13
2.2.2 Measurement Tab ..................................................................................... 15
2.3 How to Define the Correct RPROG Value ...................................................... 18
2.3.1 Operation ................................................................................................... 18
Appendix A. Schematics and Layouts
A.1 Introduction .................................................................................................. 19
A.2 Board – Schematic: Power Management Part and Resistor for
Programming Part .................................................................................. 20
A.3 Board – Schematic: Direction Pin Management Part, PIC Reserves Part,
and MTD6505 Voltage and Current Monitoring Part .............................. 21
A.4 Board – Schematic: PIC24FJ256GB106 Part .............................................. 22
A.5 Board – Schematic: IC Part/MTD6505 Plug-in Module Socket Part,
USB Connection Part, LED Part, and Reset Switch Part ....................... 23
A.6 Board – Top Silk and Pads .......................................................................... 24
A.7 Board – Top Trace and Pads ....................................................................... 25
A.8 Board – Bottom Trace and Pads .................................................................. 26
Appendix B. Bill of Materials
Worldwide Sales and Service .................................................................................... 30
© 2011 Microchip Technology Inc.
DS52009A-page 3
MTD6505 3-Phase BLDC Sensorless Fan Controller Demo Board User’s Guide
DS52009A-page 4
© 2011 Microchip Technology Inc.
MTD6505 3-PHASE BLDC
SENSORLESS FAN CONTROLLER
DEMO BOARD USER’S GUIDE
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 online help.
Select the Help menu, and then Topics to open a list of available online help files.
INTRODUCTION
This chapter contains general information that will be useful to know before using the
MTD6505 3-Phase BLDC Sensorless Fan Controller Demonstration 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 MTD6505 3-Phase BLDC Sensorless 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 MTD6505
3-Phase BLDC Sensorless Fan Controller Demonstration Board.
• Chapter 2. “Installation and Operation” – Includes instructions on how to get
started with MTD6505 3-Phase BLDC Sensorless Fan Controller Demonstration
Board.
• Appendix A. “Schematics and Layouts” – Shows the schematic and layout
diagrams for the MTD6505 3-Phase BLDC Sensorless Fan Controller Demonstration Board.
• Appendix B. “Bill of Materials” – Lists the parts used to build the MTD6505
3-Phase BLDC Sensorless Fan Controller Demonstration Board.
© 2011 Microchip Technology Inc.
DS52009A-page 5
MTD6505 3-Phase BLDC Sensorless Fan Controller Demo Board User’s Guide
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description
Arial font:
Italic characters
Initial caps
Quotes
Underlined, italic text with
right angle bracket
Bold characters
N‘Rnnnn
Text in angle brackets < >
Courier New font:
Plain Courier New
Represents
Referenced books
Emphasized text
A window
A dialog
A menu selection
A field name in a window or
dialog
A menu path
MPLAB® IDE User’s Guide
...is the only compiler...
the Output window
the Settings dialog
select Enable Programmer
“Save project before build”
A dialog button
A tab
A number in verilog format,
where N is the total number of
digits, R is the radix and n is a
digit.
A key on the keyboard
Click OK
Click the Power tab
4‘b0010, 2‘hF1
Italic Courier New
Sample source code
Filenames
File paths
Keywords
Command-line options
Bit values
Constants
A variable argument
Square brackets [ ]
Optional arguments
Curly brackets and pipe
character: { | }
Ellipses...
Choice of mutually exclusive
arguments; an OR selection
Replaces repeated text
Represents code supplied by
user
DS52009A-page 6
Examples
File>Save
Press <Enter>, <F1>
#define START
autoexec.bat
c:\mcc18\h
_asm, _endasm, static
-Opa+, -Opa0, 1
0xFF, ‘A’
file.o, where file can be
any valid filename
mcc18 [options] file
[options]
errorlevel {0|1}
var_name [,
var_name...]
void main (void)
{ ...
}
© 2011 Microchip Technology Inc.
Preface
RECOMMENDED READING
This user's guide describes how to use MTD6505 3-Phase BLDC Sensorless Fan
Controller Demonstration Board. Other useful documents are listed below. The
following Microchip documents are available and recommended as supplemental
reference resources.
• MTD6505 Data Sheet, “3-Phase BLDC Sinusoidal Sensorless Fan Motor Drive”
(DS22281)
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 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
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 (December 2011)
• Initial Release of this Document.
© 2011 Microchip Technology Inc.
DS52009A-page 7
MTD6505 3-Phase BLDC Sensorless Fan Controller Demo Board User’s Guide
NOTES:
DS52009A-page 8
© 2011 Microchip Technology Inc.
MTD6505 3-PHASE BLDC
SENSORLESS FAN CONTROLLER
DEMO BOARD USER’S GUIDE
Chapter 1. Product Overview
1.1
INTRODUCTION
The MTD6505 3-Phase BLDC Sensorless Fan Controller Demonstration Board allows
the control and monitoring of the MTD6505 device, using a PC software connected to
the MTD6505 3-Phase BLDC Sensorless Fan Controller Demonstration Board via a
USB connection.
The MTD6505 3-Phase BLDC Sensorless Fan Controller Demonstration Board
Software provides several features, such as VDD control and monitoring, pulse-width
modulation (PWM) control, speed and current consumption monitoring. It also allows
controlling the RPROG resistor value for fan fitting.
W V U
MTD6505
Plug-in
Module
USB Connection
MTD6505 3-Phase BLDC
Sensorless Fan Controller
Demonstration Board
6V VIN
FIGURE 1-1:
System Overview.
© 2011 Microchip Technology Inc.
DS52009A-page 9
MTD6505 3-Phase BLDC Sensorless Fan Controller Demo Board User’s Guide
1.2
MTD6505 3-PHASE BLDC SENSORLESS FAN CONTROLLER
DEMONSTRATION BOARD HARDWARE DESCRIPTION
The MTD6505 3-Phase BLDC Sensorless Fan Controller Demonstration Board
contains several components, such as:
• A microcontroller (PIC24FJ256GB) for USB connection, PWM generation, FG
frequency measurement, VDD measurement, other’s signal’s activations and
component’s communication.
• An adjustable LDO (MCP1827) combined to a digital potentiometer (MCP42050)
to provide the VDD to the MTD6505 device. The LDO can be enabled or disabled
by the microcontroller.
• The digital potentiometer is also used to set the MTD6505 RPROG external
resistor value.
• A Delta-Sigma (MCP3421) combined to a shunt resistor for sensing the MTD6505
current consumption on the VDD pin.
More details of the schematic are available in Appendix A. “Schematics and
Layouts”.
1.3
WHAT THE MTD6505 3-PHASE BLDC SENSORLESS FAN CONTROLLER
DEMONSTRATION BOARD KIT INCLUDES
The MTD6505 3-Phase BLDC Sensorless Fan Controller Demonstration Board
includes:
• MTD6505 3-Phase BLDC Sensorless Fan Controller Demonstration Board
(ADM00345)
• 3 x MTD6505 plug-in modules with soldered on MTD6505 (3x3 UDFN-10L)
• A mini-USB cable
• A 3-Phase BLDC fan (use with KM=1)
• Important Information Sheet
DS52009A-page 10
© 2011 Microchip Technology Inc.
MTD6505 3-PHASE BLDC
SENSORLESS FAN CONTROLLER
DEMO BOARD USER’S GUIDE
Chapter 2. Installation and Operation
2.1
GETTING STARTED
The following sections describe how to use the MTD6505 3-Phase BLDC Sensorless
Fan Controller Demonstration Board.
2.1.1
Software Installation
Download the MTD6505 3-Phase BLDC Sensorless Fan Controller Demonstration
Board software installer from the Microchip web site at http://www.microchip.com. From
the web site, search for the evaluation board by part number ADM00345. The GUI can
be downloaded from this web page.
Note:
2.1.2
This application requires Microsoft .NET Framework 2.0 or later.
Board installation
Figure 2-1 identifies the required points for using the MTD6505 3-Phase BLDC Sensorless Fan Controller Demonstration Board.
6
3-Phase Fan
Connector
5
102-00345
MTD6505
Plug-in
6505 Daughter
Module
socket
Board socket
6V VIN
6[V] VIN
RESET
ON OFF
1
2
mini-USB
4
POWER
LED
VDD
LED
USB
LED
3
Legend:
1 = Input connector
4 = Plug-in module connector
2 = ON/OFF switch
5 = MTD6505 plug-in module socket
3 = Reset button
6 = 3-Phase fan connector
FIGURE 2-1:
Top View - Hardware Components.
© 2011 Microchip Technology Inc.
DS52009A-page 11
MTD6505 3-Phase BLDC Sensorless Fan Controller Demo Board User’s Guide
To use the MTD6505 3-Phase BLDC Sensorless Fan Controller Demonstration Board,
follow the next steps:
1. Plug in the MTD6505 plug-in module (with an MTD6505 soldered on it) on its
socket (see Figure 2-1).
2. To plug in a 3-Phase BLDC sensorless fan, choose one of these connections:
- 3-Phase fan connector from the MTD6505 3-Phase BLDC Sensorless Fan
Controller Demonstration Board (J5)
- On the MTD6505 plug-in module fan connector.
3. Connect the Power Supply to the VIN test point. VIN value is +6V ±5%. The
Power Supply should be able to deliver up to 1.0A.
4. Turn on the power switch. The POWER LED should be activated.
5. Plug the mini-USB cable from the USB port of a computer to the MTD6505
3-Phase BLDC Sensorless Fan Controller Demonstration Board connector.
6. If required, let the computer identify the MTD6505 3-Phase BLDC Sensorless
Fan Controller Demonstration Board.
7. Restart the computer, if required.
8. Start the MTD6505 3-Phase BLDC Sensorless Fan Controller Demonstration
Board Software.
Note:
DS52009A-page 12
Once the MTD6505 3-Phase BLDC Sensorless Fan Controller
Demonstration Board Software is installed, it will automatically detect if the
MTD6505 3-Phase BLDC Sensorless Fan Controller Demonstration Board
is attached and its configuration. This means it is possible to start the
MTD6505 3-Phase BLDC Sensorless Fan Controller Demonstration Board
Software before or after enabling the board.
© 2011 Microchip Technology Inc.
Installation and Operation
2.2
MTD6505 3-PHASE BLDC SENSORLESS FAN CONTROLLER
DEMONSTRATION BOARD SOFTWARE DESCRIPTION
The MTD6505 3-Phase BLDC Sensorless Fan Controller Demonstration Board
Software window contains two tabs. The first tab is for controlling and monitoring the
MTD6505 3-Phase BLDC Sensorless Fan Controller Demonstration Board; the second
tab is the Measurement tab.
2.2.1
Controlling and Monitoring Tab
Figure 2-2 shows the options and functions available to control and monitor the board.
7
6
1
2
5
3
4
Legend:
1
=
Control Group box
5
=
Instant current measurement
2
=
RPROG Pin Group box
6
=
PWM Control Group box
3
=
Chart Group box
7
=
VDD Control Group box
4
=
Instant speed measurement
FIGURE 2-2:
GUI - Controlling and Monitoring Tab.
All functions presented in Figure 2-2 are enabled only when the MTD6505 3-Phase
BLDC Sensorless Fan Controller Demonstration Board is connected to the PC via a
USB connection.
© 2011 Microchip Technology Inc.
DS52009A-page 13
MTD6505 3-Phase BLDC Sensorless Fan Controller Demo Board User’s Guide
2.2.1.1
CONTROL/MONITORING
The Control/Monitoring Group box contains two buttons:
• Turn On/Off VDD button enables/disables the power supply on the VDD pin of the
MTD6505 device.
• Change Direction is used to inverse the sense of the fan rotation. The Change
Direction button is available only when VDD is turned off.
2.2.1.2
RPROG PIN
The RPROG Pin Group box allows the selection of the desired RPROG resistor value.
This value depends on the KM (mV/Hz) of the fan. See the section Section 2.3 “How
to define the correct RPROG Value” for more information on the RPROG selection.
One particular mode, HighZ, allows the setting of an external RPROG resistor value
directly on the plug-in module.
In order to use the MTD6502B with the MTD6505 3-Phase BLDC Sensorless Fan Controller Demo Board, use KM= 0.
2.2.1.3
CHART
This part of the GUI displays a chart of the MTD6505 current consumption (mA) on the
VDD pin, and the fan speed (Revolutions Per Minute - RPM) by measuring the FG frequency. The chart adds 10 values per second. The three buttons have the following
functions:
• Start/Stop – allows the values acquisition to start or stop
• Clear – removes all the values added to the chart
• Auto Scale – allows the restoration of the default scaling. In the default scaling
mode, the chart will automatically adjust the scaling to ensure the complete view
of the whole added values. In addition, when selecting a part of the chart with the
mouse, it is possible to zoom in the selection. The mouse wheel zoom in/out is
also enabled.
2.2.1.4
PWM PIN
The PWM Group box provides a slide bar to set the PWM ratio on the MTD6505 PWM
pin. The gauge below indicates the current PWM applied.
2.2.1.5
VDD PIN
The VDD Group box also provides a slide bar to set the desired VDD value. The gauge
below indicates the instant VDD value measured by the MTD6505 3-Phase BLDC
Sensorless Fan Controller Demonstration Board.
2.2.1.6
CURRENT/SPEED FIELDS
Current field shows the instant current measure (mA). Speed field shows the instant
speed measure (RPM).
DS52009A-page 14
© 2011 Microchip Technology Inc.
Installation and Operation
2.2.2
Measurement Tab
The Measurement tab is used to check if the fan is correctly adapted to the MTD6505
by testing the fan several times in different conditions. This tab contains two more tabs,
for settings and results.
2.2.2.1
SETTINGS TAB
Figure 2-3 shows the Setting tab.
1
2
3
4
5
Legend:
FIGURE 2-3:
1
=
Measurement Settings Group box
2
=
Startup measurement
3
=
PWM Change Measurement Group box
4
=
Speed Curve and Stability Measurement Group box
5
=
Measurement Control Group box
GUI - Measurement tab – Settings.
© 2011 Microchip Technology Inc.
DS52009A-page 15
MTD6505 3-Phase BLDC Sensorless Fan Controller Demo Board User’s Guide
2.2.2.1.1
Measurement Settings
The Measurement Settings Group box is used to specify the measurement corners
required:
• Number of iterations – for one corner
• PWM Corners Measurement – requires the PWM Max (%), PWM Step (%) and
PWM Min (%) values setting. The software will start with the maximum value
entered, and will decrease the PWM by the step value until reaches the minimum
entered PWM value.
• VDD corners are similar to the PWM corners. A VDD corner includes all PWM
corners. This means that for one VDD corner, all PWM corners are measured.
• Startup max delay – if the speed of the fan is measured as 0 RPM after this
delay, the startup is considered a fail. The recommended value for this field is 3s.
• Inter test delay – specifies how many seconds are allocated to stop the fan
between two tests. This value will depend on the fan lag.
2.2.2.1.2
Startup
When the Startup box is checked, the startup measurements are enabled, measuring
every corner for this test. If Startup is not enabled, the Startup test is skipped. The other
tests will be executed if they are enabled.
2.2.2.1.3
PWM Change
The PWM Change Measurement starts up with a PWM value of 100%. After the
specified startup delay (entered in the Startup max delay field), the PWM changes
depending on the PWM corner specified. The software will then verify if the fan is still
running. This last check will occur after a delay value is specified in the
Braking Delay (s) field.
2.2.2.1.4
Speed Curve and Stability
This measurement requires a specified number of samples in a specified condition to
check speed stability. If the Do every percent PWM and/or Do every 0.1(V) for VDD
are not checked, the corners are measured. For this test, the iterations numbering will
always be 1. When the Do every percent PWM option is enabled, the software will
override the specified settings, and the measurement will occur for every PWM; the
same procedure will happen for VDD, if the check box Do every 0.1[V] for VDD is
checked.
2.2.2.1.5
Measurement Control
This group box contains three buttons that allows the user to control the work flow:
• Stop Measuring – starts and stops the required measuring
• Clear Result – clears the current result from the screen
• Save Results – stores the current measurement in an Excel file
DS52009A-page 16
© 2011 Microchip Technology Inc.
Installation and Operation
2.2.2.2
MEASUREMENT RESULTS TAB
Figure 2-4 shows the Measurement Results sub-tab:
1
2
Legend:
FIGURE 2-4:
1
=
Measurement Results table
2
=
Measurement Control Group box
GUI - Measurement – Results Tab.
The results are stored in this table. All the tests have the first six columns in common,
with the other columns being significant only for a specific test. Settings’ control buttons
are also visible in this tab (see description in Section 2.2.2.1.5 “Measurement
Control”).
© 2011 Microchip Technology Inc.
DS52009A-page 17
MTD6505 3-Phase BLDC Sensorless Fan Controller Demo Board User’s Guide
2.3
HOW TO DEFINE THE CORRECT RPROG VALUE
This section explains how to define the correct KM value for a specific fan. The KM is
linked to the RPROG (see Table 2-1). An incorrect KM selection can create issues, or
reduce the efficiency.
2.3.1
Operation
Follow the next steps to define the right RPROG value:
1. Apply a constant stream of air to a fan that is not connected.
2. Using an oscilloscope, measure the waveform between two phases, when the
fan is rotating.
3. Measure the generated peak-to-peak voltage (Vp-p) value and the frequency (f).
4. Compute KM based on the measured Vp-p and f (in mV/Hz):
EQUATION 2-1:
KM COMPUTE
Vp – p
K m = -----------2f
KM should be constant, for all fan rotation speeds, but for the KM measurement, the fan
rotation speed due to the air stream, should be close to the nominal fan rotation speed.
Table 2-1 shows the corresponding KM for different RPROG values.
TABLE 2-1:
DS52009A-page 18
RPROG VALUE
RPROG
KM
KM Range
(mV/Hz)
VBIAS (0Ω)
3
26 - 52
3.9 kΩ
2
13 - 26
24 kΩ
1
6.5 - 13
GND
0
3.25 - 6.5
© 2011 Microchip Technology Inc.
MTD6505 3-PHASE BLDC
SENSORLESS FAN CONTROLLER
DEMO BOARD USER’S GUIDE
Appendix A. Schematics and Layouts
A.1
INTRODUCTION
This appendix contains the following schematics and layouts for the MTD6505 3-Phase
BLDC Sensorless Fan Controller Demonstration Board:
• Board - Schematic: Power Management Part and Resistor for Programming Part
• Board – Schematic: Direction Pin Management Part, PIC Reserves Part and
MTD6505 Voltage and Current Monitoring Part
• Board – Schematic: PIC24FJ256GB106 Part
• Board – Schematic: IC Part/MTD6505 Plug-in Module Socket Part, USB Connection
Part, LED Part and Reset Switch Part
• Board – Top Silk and Pads
• Board – Top Trace and Pads
• Board – Bottom Trace and Pads
© 2011 Microchip Technology Inc.
DS52009A-page 19
MTD6505 3-Phase BLDC Sensorless Fan Controller Demo Board User’s Guide
BOARD – SCHEMATIC: POWER MANAGEMENT PART AND RESISTOR FOR
PROGRAMMING PART
3
1
2
POWER PART
R_ADJ
(Max R on code 0, low output)
R_PROG
0, 3.9K, 24K
R PROG PART
1
2
3
100K
R20
A.2
DS52009A-page 20
© 2011 Microchip Technology Inc.
Schematics and Layouts
A.3
BOARD – SCHEMATIC: DIRECTION PIN MANAGEMENT PART, PIC
RESERVES PART, AND MTD6505 VOLTAGE AND CURRENT MONITORING
PART
IC DIR PIN MANAGMENT PART
2
1
3
1
2
2
1
1
3
2
PIC RESERVE PART
2
1
3
IC VOLTAGE AND CURRENT MONITORING PART
0.05R shunt 1%
© 2011 Microchip Technology Inc.
DS52009A-page 21
MTD6505 3-Phase BLDC Sensorless Fan Controller Demo Board User’s Guide
PIC24F Part
1
BOARD – SCHEMATIC: PIC24FJ256GB106 PART
2
A.4
DS52009A-page 22
© 2011 Microchip Technology Inc.
Schematics and Layouts
A.5
BOARD – SCHEMATIC: IC PART/MTD6505 PLUG-IN MODULE SOCKET
PART, USB CONNECTION PART, LED PART, AND RESET SWITCH PART
IC PART
LED PART
© 2011 Microchip Technology Inc.
USB CONNECTION PART
RESET SWITCH PART
DS52009A-page 23
MTD6505 3-Phase BLDC Sensorless Fan Controller Demo Board User’s Guide
A.6
BOARD – TOP SILK AND PADS
DS52009A-page 24
© 2011 Microchip Technology Inc.
Schematics and Layouts
A.7
BOARD – TOP TRACE AND PADS
© 2011 Microchip Technology Inc.
DS52009A-page 25
MTD6505 3-Phase BLDC Sensorless Fan Controller Demo Board User’s Guide
A.8
BOARD – BOTTOM TRACE AND PADS
DS52009A-page 26
© 2011 Microchip Technology Inc.
MTD6505 3-PHASE BLDC
SENSORLESS FAN CONTROLLER
DEMO BOARD USER’S GUIDE
Appendix B. Bill of Materials
TABLE B-1:
Qty
BILL OF MATERIALS (BOM)
Reference
Description
Part Number
2
C1, C2
8
C3, C6, C7, CAP CER .1UF 16V 10% X7R 0603
C8, C9, C10,
C11, C21
Murata Electronics®
GRM188R71C104KA01D
3
C4, C16, C22 CAP CERAMIC 10.0UF 16V X5R
1206
KEMET® Electronics
Corp.
C1206C106K4PACTU
2
C5, C23
CAP CER 10UF 6.3V X5R 0603
KEMET Electronics
Corp.
C0603C106M9PACTU
4
C12, C13,
C18, C20
CAP CERAMIC 4.7UF 16V X7R 1206 KEMET Electronics
Corp.
C1206C475K4RACTU
4
C14, C15,
C17, C19
CAP CER 1.0UF 16V 10% X5R 0603
Murata Electronics
GRM188R61C105KA93D
1
C24
CAP ALUM 10UF 16V 20% SMD
Panasonic® - ECG
EEE-HC1C100R
2
D1, D5, D6
DIODE SCHOTTKY 30V 200MA
SC-76
NXP Semiconductors
1PS76SB10,115
3
D2, D3, D4
LED INGAN BLUE CLEAR 1206 SMD Dialight Corp.
598-8291-107F
1
D6
DIODE ZENER 12V 400MW SOD323 NXP Semiconductors
PDZ12B,115
1
F1 Fuse
044901.5MR - FUSE, SMD, 1.5A,
TIME DELAY
Littelfuse®
044901.5MR
1
F1 Holder
0154007.DR - FUSE BLOCK W/ 7A
FUSE, FAST ACTING
Littelfuse
R154007
1
J1, J2
PC TEST POINT COMPACT SMT
Keystone Electronics
5016
3
J3, J3, U2
CONN RCPT .100" 5POS SNGL TIN
Samtec, Inc.
SLW-105-01-T-S
1
J4
CONN HDR BRKWAY .100 05POS
VERT
TE Connectivity
9-146282-0-05
1
J5
CONN HDR BRKWAY .100 03POS
VERT
TE Connectivity
9-146282-0-03
1
R1
RES 150K OHM 1/10W 5% 0603
SMD
Panasonic - ECG
ERJ-3GEYJ154V
1
R2
RES .05 OHM 1W 1% 1206 SMD
Vishay®/Dale
WSLP1206R0500FEA
2
R3, R4
RES 100K OHM 1/10W 1% 0603
SMD
Panasonic - ECG
ERJ-3EKF1003V
9
R5, R6, R10, RES 100K OHM 1/10W 5% 0603
SMD
R13, R20,
R23, R24,
R25, R26
Panasonic - ECG
ERJ-3GEYJ104V
8
R7, R11,
R12, R14,
R15, R16,
R21, R22
RES 1.0K OHM 1/10W 5% 0603 SMD Panasonic - ECG
ERJ-3GEYJ102V
Note 1:
CAP CER 20PF 50V C0G 0603
Manufacturer
TDK®
Corporation
C1608C0G1H200J
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.
© 2011 Microchip Technology Inc.
DS52009A-page 27
MTD6505 3-Phase BLDC Sensorless Fan Controller Demostration Board
TABLE B-1:
Qty
BILL OF MATERIALS (BOM) (CONTINUED)
Reference
Description
Manufacturer
Part Number
2
R8, R18
RES 10K OHM 1/10W 5% 0603 SMD Panasonic - ECG
ERJ-3GEYJ103V
1
R9
RES 4.7K OHM 1/10W 5% 0603 SMD Panasonic - ECG
ERJ-3GEYJ472V
2
R17, R19
RES 470 OHM 1/10W 5% 0603 SMD
Panasonic - ECG
ERJ-3GEYJ471V
1
S1
SWITCH, TACTILE SPST 50mA,
SMD GULL WING
TE Connectivity
Alcoswitch
FSM2JSMATR
1
U1
300 mA, Low Voltage, Low Quiescent Microchip Technology
Current LDO Regulator
Inc.
MCP1824S-3302E/DB:3.3V
1
U3
18-Bit Analog-to-Digital Converter
with I2C Interface and On-Board
Reference
MCP3421A0T-E/CH
1
U4
Single/Dual Digital Potentiometer with Microchip Technology
SPI Interface
Inc.
MCP42050-E/SL
1
U5
Positive Doubling Charge Pumps with Microchip Technology
Shutdown
Inc.
TC1240AXCHTR
1
U6
64-Pin, 16-Bit Flash Microcontroller
with USB On-The-Go (OTG)
Microchip Technology
Inc.
PIC24FJ256GB106-I/PT
2
U7, U11
MOSFET N-CH 20V 1.2A SC59-3
Diodes Incorporated®
DMN2112SN-7
1
U8
1.5A, Low Voltage, Low Quiescent
Current LDO Regulator
Microchip Technology
Inc.
MCP1827-ADJE/ET
3
U12, U13,
U16
MOSFET P-CH 20V 1A SSOT3
Fairchild
Semiconductor®
NDS332P
1
U14
Plug-in Module connector Type B
(USB 2.0)
Hsuan Mao Technology C8320-05BFRSB0R
Co., Ltd
1
U15
SLIDE SWITCH, SPDT
Knitter-Switch
MFP106D
1
Y1
CRYSTAL, HC49/SMD, 16.000MHZ
Aker Technology
CAA-16.000-18-3050-X
1
FAN
3-Phase BLDC Fan
Kunshan Kipo
Technology Co., LTD
FAKL600EPA
Note 1:
Microchip Technology
Inc.
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.
DS52009A-page 28
© 2011 Microchip Technology Inc.
NOTES:
© 2011 Microchip Technology Inc.
DS52009A-page 29
Worldwide Sales and Service
AMERICAS
ASIA/PACIFIC
ASIA/PACIFIC
EUROPE
Corporate Office
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-792-7200
Fax: 480-792-7277
Technical Support:
http://www.microchip.com/
support
Web Address:
www.microchip.com
Asia Pacific Office
Suites 3707-14, 37th Floor
Tower 6, The Gateway
Harbour City, Kowloon
Hong Kong
Tel: 852-2401-1200
Fax: 852-2401-3431
India - Bangalore
Tel: 91-80-3090-4444
Fax: 91-80-3090-4123
India - New Delhi
Tel: 91-11-4160-8631
Fax: 91-11-4160-8632
Austria - Wels
Tel: 43-7242-2244-39
Fax: 43-7242-2244-393
Denmark - Copenhagen
Tel: 45-4450-2828
Fax: 45-4485-2829
India - Pune
Tel: 91-20-2566-1512
Fax: 91-20-2566-1513
France - Paris
Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
Japan - Osaka
Tel: 81-66-152-7160
Fax: 81-66-152-9310
Germany - Munich
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
Atlanta
Duluth, GA
Tel: 678-957-9614
Fax: 678-957-1455
Boston
Westborough, MA
Tel: 774-760-0087
Fax: 774-760-0088
Chicago
Itasca, IL
Tel: 630-285-0071
Fax: 630-285-0075
Cleveland
Independence, OH
Tel: 216-447-0464
Fax: 216-447-0643
Dallas
Addison, TX
Tel: 972-818-7423
Fax: 972-818-2924
Detroit
Farmington Hills, MI
Tel: 248-538-2250
Fax: 248-538-2260
Indianapolis
Noblesville, IN
Tel: 317-773-8323
Fax: 317-773-5453
Los Angeles
Mission Viejo, CA
Tel: 949-462-9523
Fax: 949-462-9608
Santa Clara
Santa Clara, CA
Tel: 408-961-6444
Fax: 408-961-6445
Toronto
Mississauga, Ontario,
Canada
Tel: 905-673-0699
Fax: 905-673-6509
Australia - Sydney
Tel: 61-2-9868-6733
Fax: 61-2-9868-6755
China - Beijing
Tel: 86-10-8569-7000
Fax: 86-10-8528-2104
China - Chengdu
Tel: 86-28-8665-5511
Fax: 86-28-8665-7889
China - Chongqing
Tel: 86-23-8980-9588
Fax: 86-23-8980-9500
Korea - Daegu
Tel: 82-53-744-4301
Fax: 82-53-744-4302
China - Hangzhou
Tel: 86-571-2819-3187
Fax: 86-571-2819-3189
Korea - Seoul
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
China - Hong Kong SAR
Tel: 852-2401-1200
Fax: 852-2401-3431
Malaysia - Kuala Lumpur
Tel: 60-3-6201-9857
Fax: 60-3-6201-9859
China - Nanjing
Tel: 86-25-8473-2460
Fax: 86-25-8473-2470
Malaysia - Penang
Tel: 60-4-227-8870
Fax: 60-4-227-4068
China - Qingdao
Tel: 86-532-8502-7355
Fax: 86-532-8502-7205
Philippines - Manila
Tel: 63-2-634-9065
Fax: 63-2-634-9069
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
Taiwan - Hsin Chu
Tel: 886-3-5778-366
Fax: 886-3-5770-955
China - Shenzhen
Tel: 86-755-8203-2660
Fax: 86-755-8203-1760
Taiwan - Kaohsiung
Tel: 886-7-536-4818
Fax: 886-7-330-9305
China - Wuhan
Tel: 86-27-5980-5300
Fax: 86-27-5980-5118
Taiwan - Taipei
Tel: 886-2-2500-6610
Fax: 886-2-2508-0102
China - Xian
Tel: 86-29-8833-7252
Fax: 86-29-8833-7256
Thailand - Bangkok
Tel: 66-2-694-1351
Fax: 66-2-694-1350
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
Spain - Madrid
Tel: 34-91-708-08-90
Fax: 34-91-708-08-91
UK - Wokingham
Tel: 44-118-921-5869
Fax: 44-118-921-5820
China - Xiamen
Tel: 86-592-2388138
Fax: 86-592-2388130
China - Zhuhai
Tel: 86-756-3210040
Fax: 86-756-3210049
DS52009A-page 30
Japan - Yokohama
Tel: 81-45-471- 6166
Fax: 81-45-471-6122
11/29/11
© 2011 Microchip Technology Inc.