MTD6508 3-Phase BLDC
Sensorless Fan Controller
Demo Motherboard (ADM00633)
User’s Guide
2016 Microchip Technology Inc.
DS50002516A
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DS50002516A-page 2
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© 2016, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
ISBN: 978-1-5224-0738-6
2016 Microchip Technology Inc.
Object of Declaration: MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard
(ADM00633)
2016 Microchip Technology Inc.
DS50002516A-page 3
MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633) User’s Guide
NOTES:
DS50002516A-page 4
2016 Microchip Technology Inc.
MTD6508 3-PHASE BLDC SENSORLESS FAN
CONTROLLER DEMO MOTHERBOARD
(ADM00633) USER’S GUIDE
Table of Contents
Preface ........................................................................................................................... 7
Chapter 1. Product Overview
1.1 Introduction ................................................................................................... 11
1.2 MTD6508 Motherboard Hardware description ............................................. 12
1.3 MTD6508 Daughter Board Hardware Description ........................................ 13
1.4 What the MTD6508 3-Phase BLDC Sensorless Fan Controller Demo
Motherboard (ADM00633) Kit includes .................................................. 14
Chapter 2. Installation and Operation
2.1 Getting Started ............................................................................................. 15
2.2 Board Setup ................................................................................................. 15
2.3 Using the MTD6508 Demonstration Board Kit without the MTD6508
Demonstration Board Software GUI ....................................................... 16
2.4 Software Installation ..................................................................................... 17
2.5 Using the MTD6508 Demonstration Board Kit with the MTD6508
Demonstration Board Software GUI ....................................................... 20
Chapter 3. Graphical User Interface Description
3.1 MTD6508 Demonstration Board Software GUI description .......................... 21
3.1.1 Control Tab ................................................................................................ 21
3.1.1.1 Operation Control ...................................................................... 22
3.1.1.2 RPROG Pin ............................................................................... 22
3.1.1.3 Chart .......................................................................................... 22
3.1.1.4 PWM Pin .................................................................................... 23
3.1.1.5 VDD Pin ...................................................................................... 23
3.1.1.6 Slew Rate Pins .......................................................................... 23
3.1.2 Measurement Tab ..................................................................................... 24
3.1.2.1 Settings Tab .............................................................................. 24
3.1.2.2 Measurement Results Tab ........................................................ 27
3.1.3 Defining the RPROG Value Correctly .......................................................... 28
3.1.3.1 Operation ................................................................................... 28
Appendix A. Schematics and Layouts
A.1 Introduction .................................................................................................. 29
A.2 ADM00633 Board – Schematic: LED Part, Key Part and R_Prog Part ....... 30
A.3 ADM00633 Board – Schematic: Current Sense Part, Digipot Part and Power
Part ......................................................................................................... 31
A.4 ADM00633 Board – Schematic: PIC24F Part .............................................. 32
A.5 ADM00633 Board – Schematic: MTD6508 Connector Part, USB Connection
Part and Probe Part ............................................................................... 33
A.6 ADM00633 Board – Top Silk ....................................................................... 34
A.7 ADM00633 Board – Top Copper and Silk .................................................... 34
A.8 ADM00633 Board – Bottom Copper and Silk .............................................. 35
2016 Microchip Technology Inc.
DS50002516A-page 5
MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633) User’s Guide
Appendix B. Bill of Materials (BOM)
Worldwide Sales and Service .....................................................................................39
DS50002516A-page 6
2016 Microchip Technology Inc.
MTD6508 3-PHASE BLDC SENSORLESS FAN
CONTROLLER DEMO MOTHERBOARD
(ADM00633) 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 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.
INTRODUCTION
This chapter contains general information that will be useful to know before using the
MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633).
Items discussed in this chapter include:
•
•
•
•
•
•
Document Layout
Conventions Used in this Guide
Recommended Reading
The Microchip Website
Customer Support
Document Revision History
DOCUMENT LAYOUT
This document describes how to use the MTD6508 3-Phase BLDC Sensorless Fan
Controller Demo Motherboard (ADM00633) 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 MTD6508
3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633).
• Chapter 2. “Installation and Operation” – Includes instructions on how to get
started with the MTD6508 3-Phase BLDC Sensorless Fan Controller Demo
Motherboard (ADM00633).
• Appendix A. “Schematics and Layouts” – Shows the schematic and layout
diagrams for the MTD6508 3-Phase BLDC Sensorless Fan Controller Demo
Motherboard (ADM00633).
• Appendix B. “Bill of Materials (BOM)” – Lists the parts used to build the
MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard
(ADM00633).
2016 Microchip Technology Inc.
DS50002516A-page 7
MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633) 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
DS50002516A-page 8
Examples
File>Save
Press ,
#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)
{ ...
}
2016 Microchip Technology Inc.
Preface
RECOMMENDED READING
This user’s guide describes how to use the MTD6508 3-Phase BLDC Sensorless Fan
Controller Demo Motherboard (ADM00633). Another useful document is listed below.
The following Microchip document is available and recommended as a supplemental
reference resource.
• MTD6508 Data Sheet – “3-Phase Sinusoidal Sensorless Brushless Fan
Motor Driver” (DS20005359)
THE MICROCHIP WEBSITE
Microchip provides online support via our website at www.microchip.com. This website 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
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 website at: http://www.microchip.com/support.
DOCUMENT REVISION HISTORY
Revision A (June 2016)
• Initial Release of this Document.
2016 Microchip Technology Inc.
DS50002516A-page 9
MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633) User’s Guide
NOTES:
DS50002516A-page 10
2016 Microchip Technology Inc.
MTD6508 3-PHASE BLDC SENSORLESS FAN
CONTROLLER DEMO MOTHERBOARD
(ADM00633) USER’S GUIDE
Chapter 1. Product Overview
1.1
INTRODUCTION
The MTD6508 motherboard allows control of the daughter board (ADM00631) in two
ways:
• Directly, by using the keys on the board
• By connecting the MTD6508 motherboard to a computer via a USB port and controlling and monitoring the MTD6508 3-Phase BLDC Sensorless Fan Controller
Demo Motherboard (ADM00633) device through PC software (the MTD6508
Demonstration Board Software GUI).
The MTD6508 Demonstration Board Software GUI provides several features, such as
VDD control and monitoring, pulse-width modulation (PWM) control as well as speed
and current consumption monitoring. It also allows the user to control the following
parameters:
• The RPROG resistor value for fan fitting
• The RSR resistor value for output PWM slew rate control
• All remaining digital pins.
6V VIN
MTD6508
Motherboard
USB Connection
FIGURE 1-1:
MTD6508
daughter
board
System Overview.
2016 Microchip Technology Inc.
DS50002516A-page 11
MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633) User’s Guide
FIGURE 1-2:
MTD6508 3-Phase BLDC Sensorless Fan Controller Demonstration Motherboard
(ADM00633) Overview.
1.2
MTD6508 MOTHERBOARD HARDWARE DESCRIPTION
The MTD6508 motherboard contains several components:
• A microcontroller (PIC24FJ64GB) for USB connection, PWM generation,
FG frequency measurement, VDD measurement, activations of other signals and
component communication.
• An LDO (MCP1827) adjustable with a digital potentiometer (MCP4652) to provide
the VDD to the MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633) device. The LDO can be enabled or disabled by the microcontroller. The digital potentiometer is also used to set the RPROG and RSR
resistor values.
• A Delta-Sigma (MCP3421) combined with a shunt resistor for sensing current
consumption on the VDD pin.
More details on the schematic are available in Appendix A. “Schematics and Layouts”.
DS50002516A-page 12
2016 Microchip Technology Inc.
Product Overview
1.3
MTD6508 DAUGHTER BOARD HARDWARE DESCRIPTION
The MTD6508 motherboard is made to drive the MTD6508 daughter board
(ADM00631). The latter contains a 16-Lead UQFN 4x4 MTD6508 and the components
required to operate with the UQFN MTD6508 device. Note that the ADM00631 needs
to be purchased separately.
We strongly recommend to use the daughter board in conjunction with the motherboard
(ADM00633). However, the MTD6508 daughter boards can also be used
independently as stand-alone boards. This section provides a brief description of the
MTD6508 daughter board.
DIR
SR1
SR2
SS
RT
Figure 1-3 provides an overview of the MTD6508 daughter board.
R2
R3
FG
RPROG
VBIAS
Not connected
Not connected
R1
C1
R4
PWM
FG/3
VDD
OUT1
OUT3
Package ID
GND
GND
OUT2
GND
C2
FIGURE 1-3:
MTD6508 Daughter Board Overview.
• R1 is the FG pull-up resistor
• C1 and C2 are respectively the VDD and the VBIAS decoupling capacitors
• R2 is the slew rate resistor (RSR) and is available only for the MTD6508 daughter
board with a 16-Lead UQFN 4x4 MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633) (ADM00631). This resistor is handled by
the MTD6508 motherboard via the MTD6508 Demonstration Board Software GUI.
This footprint has to be assembled only if the MTD6508 daughter board is not
plugged into a MTD6508 motherboard. A 4.7K to 47K resistor is required.
• R3 allows connecting the RPROG pin to GND. This resistor is handled by the
MTD6508 motherboard via the MTD6508 Demonstration Board Software GUI.
This footprint has to be assembled only if the RPROG resistor is not set by the
MTD6508 Demonstration Board Software GUI. A 0R resistor must be used.
• R4 allows setting the RPROG resistor. This resistor is handled by the MTD6508
motherboard via the MTD6508 Demonstration Board Software GUI. This footprint
has to be assembled only if the RPROG resistor is not set by the MTD6508
Demonstration Board Software GUI. A 24K, 3.9K or 0R resistor is required to
connect the RPROG pin to VBIAS.
More details of the schematic are available in Appendix A. “Schematics and Layouts”.
2016 Microchip Technology Inc.
DS50002516A-page 13
MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633) User’s Guide
1.4
WHAT THE MTD6508 3-PHASE BLDC SENSORLESS FAN CONTROLLER
DEMO MOTHERBOARD (ADM00633) KIT INCLUDES
The MTD6508 3-Phase BLDC Sensorless Fan Controller Motherboard package
(ADM00633) includes:
•
•
•
•
DS50002516A-page 14
MTD6508 Motherboard (ADM00633)
One mini-USB cable
One 3-Phase BLDC fan (use with KM = 2)
Important Information Sheet
2016 Microchip Technology Inc.
MTD6508 3-PHASE BLDC SENSORLESS FAN
CONTROLLER DEMO MOTHERBOARD
(ADM00633) USER’S GUIDE
Chapter 2. Installation and Operation
2.1
GETTING STARTED
The following sections describe how to install and use the MTD6508 Demonstration
Board Kit either without or in conjunction with the MTD6508 Demonstration Board
Software GUI.
2.2
BOARD SETUP
Figure 2-1 identifies the required points for using the MTD6508 Demonstration Board Kit.
1
3
5
6
4
MTD6508 Daughter Board
VIN 6V GND
RESET Key
GND
ADM00633
Daughter 3-Phase
Fan Connector
3-Phase Fan
Connector
PWM
FG/3
VDD
OUT1
OUT3
Package ID
GND
GND
OUT2
GND
FG
Board SCL
Board SDA
GND
MCU power
PWM
FG
R PROG
VBIAS
Not connected
Not connected
GND
Reserve
RT pin
SS pin
DIR pin
FG/3 pin
Reserve LED
FG/3 pin LED
DIR pin LED
SS pin LED
RT pin LED
Increase PWM Key
(10% per step)
Decrase PWM Key
(10% per step)
DEBUG BUS
Increase VDD Key
(100mV per step)
Decrease VDD Key
(100mV per step)
POWER LED
MCU LED
USB LED
MTD6508
Daughter
Board
socket
DIR
SR1
SR2
SS
RT
mini-USB
2
Legend:
1 = Input connector
4 = MTD6508 daughter boards
2 = Debug bus
5 = MTD6508 plug-in module socket
3 = Reset button
6 = 3-Phase fan connector
FIGURE 2-1:
Top View – Hardware Components.
Note:
2016 Microchip Technology Inc.
The MTD6508 daughter boards (ADM00631) are not included in the
ADM00633 kit and must be purchased separately.
DS50002516A-page 15
MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633) User’s Guide
2.3
USING THE MTD6508 DEMONSTRATION BOARD KIT WITHOUT THE
MTD6508 DEMONSTRATION BOARD SOFTWARE GUI
To use the MTD6508 motherboard without the MTD6508 Demonstration Board Software GUI, follow these steps:
1. Plug the MTD6508 daughter board into its dedicated socket on the MTD6508
motherboard (see Figure 2-1).
2. To plug in a 3-phase BLDC sensorless fan, choose one of these connections:
- the 3-phase fan connector on the MTD6508 motherboard (J1)
- the fan connector on the MTD6508 daughter board.
3. Connect the power supply to the VIN test point. The necessary VIN value is
+6V ±5%. The power supply has to deliver up to 1.0A.
4. Turn on the power switch. The POWER LED and the MCU LED will light up. The
fan will start rotating with these default parameters:
- KM = High Z (needs the assembly of an RPROG resistor)
- VDD = 5V
- PWM = 100%
- RSR resistor = 10K
- FG/3 = DIR = SS = RT = GND.
5. To adjust the fan speed, use the VDD keys to increase or decrease VDD in
conjunction with the PWM keys to increase or decrease the PWM.
DS50002516A-page 16
2016 Microchip Technology Inc.
Installation and Operation
2.4
SOFTWARE INSTALLATION
In order to use the MTD6508 motherboard with a PC software, the MTD6508
motherboard GUI needs to be installed. This section describes the installation
procedure.
The MTD6508 motherboard software installer can be downloaded from the Microchip
website at http://www.microchip.com. Search for the evaluation board on the website
by part number ADM00633. The GUI can be downloaded from the board web page.
Note:
This application requires Microsoft® .NET Framework 4 or later. The
installer will automatically install the Framework if it is not present.
1. Unzip the archive and open the .exe file. The MTD6508 Demonstration Board
Software GUI will initiate. Click Next to start the installation.
FIGURE 2-2:
Screen.
2016 Microchip Technology Inc.
MTD6508 Demonstration Board Software GUI – Welcome
DS50002516A-page 17
MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633) User’s Guide
2. To proceed with the installation, read the License Agreement and accept by
clicking the radio button corresponding to “I accept the agreement” then click Next.
FIGURE 2-3:
MTD6508 Demonstration Board Software GUI – License
Agreement Screen.
3. On the Installation Directory dialog, browse for the desired location, or click Next
to install in the default location.
FIGURE 2-4:
Directory Dialog.
DS50002516A-page 18
MTD6508 Demonstration Board Software GUI – Installation
2016 Microchip Technology Inc.
Installation and Operation
4. Once the installation path is chosen, the software is ready to install. Click Next
to proceed.
FIGURE 2-5:
Screen.
MTD6508 Demonstration Board Software GUI – Ready to Install
5. The Installation Status window appears, showing the installation progress. After
the installation has completed, click Next to continue.
FIGURE 2-6:
Status Window.
2016 Microchip Technology Inc.
MTD6508 Demonstration Board Software GUI – Installation
DS50002516A-page 19
MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633) User’s Guide
6. Once the Install Complete screen appears, click Finish to exit the Installer.
FIGURE 2-7:
Screen.
MTD6508 Demonstration Board Software GUI – Install Complete
7. Start the software by either going to Windows Start button > All Programs >
Microchip > MTD6508 Demo Board -GUI or by double-clicking the software icon
on the desktop ( ).
2.5
USING THE MTD6508 DEMONSTRATION BOARD KIT WITH THE MTD6508
DEMONSTRATION BOARD SOFTWARE GUI
To use the MTD6508 Demonstration Board Kit with the MTD6508 Demonstration Board
Software GUI, follow these steps:
1. Plug the MTD6508 daughter board into its dedicated socket on the MTD6508
motherboard (see Figure 2-1).
2. To plug in a 3-phase BLDC sensorless fan, choose one of the following
connections:
- the 3-phase fan connector on the MTD6508 motherboard (J1)
- the fan connector on the MTD6508 daughter board
3. Connect the power supply to the VIN test point. The required VIN value is
+6V ±5%. The power supply has to deliver up to 1.0A.
4. Turn on the power switch. The POWER LED and the MCU LED will light up.
5. Plug a mini-USB cable attached to the USB port of a computer to the MTD6508
motherboard connector.
6. If required, let the computer identify the MTD6508 motherboard.
7. Restart the computer, if necessary.
8. Start the MTD6508 Demonstration Board Software GUI.
Note:
DS50002516A-page 20
The order of these steps is provided as an example and can be changed.
It is also possible to start the MTD6508 Demonstration Board Software GUI
before enabling the board.
2016 Microchip Technology Inc.
MTD6508 3-PHASE BLDC SENSORLESS FAN
CONTROLLER DEMO MOTHERBOARD
(ADM00633) USER’S GUIDE
Chapter 3. Graphical User Interface Description
3.1
MTD6508 DEMONSTRATION BOARD SOFTWARE GUI DESCRIPTION
The MTD6508 Demonstration Board Software GUI window has two tabs:
• Control: contains the necessary tools to control and monitor the MTD6508
Demonstration Board.
• Measurement: provides the necessary tools to determine if the fan is correctly
adapted to the MTD6508 by testing it several times under different conditions.
3.1.1
Control Tab
Figure 3-1 shows the options and functions available for controlling and monitoring the
board.
6
5
4
1
2
3
Legend:
1
=
Operation Control group box
2
=
RPROG Pin group box
5
=
VDD Pin Control group box
3
=
Chart group box
6
=
Slew Rate Pins Control group box
FIGURE 3-1:
4
=
PWM Pin Control group box
GUI – Control Tab.
2016 Microchip Technology Inc.
DS50002516A-page 21
MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633) User’s Guide
Note:
3.1.1.1
All functions presented in Figure 3-1 are enabled only when the MTD6508
Demonstration Board is connected to the PC via a USB connection.
OPERATION CONTROL
The Operation Control group box contains five buttons:
• Turn On/Off VDD button enables/disables the power supply on the VDD pin of the
MTD6508. If the VDD pin is supplied, the button color will turn green.
• FG/3 is used to invert the FG/3 pin state. When the pin state is set high, the button
color will turn green. If the pin state is set low, the button will gray out.
• DIR is used to invert the DIR pin state. Setting the pin state high will cause the button
color to turn green. Setting the pin state low will switch the button color to gray.
• SS is used to invert the SS pin state. When the pin state is set high, the button will
be displayed in green. If the pin state is set low, the button will be displayed in gray.
• RT is used to invert the RT pin state. Setting the pin state high will cause the button
color to turn green. Setting the pin state low will switch the button color to gray.
Note:
3.1.1.2
Please refer to the MTD6508 Data Sheet – “3-Phase Sinusoidal
Sensorless Brushless Fan Motor Driver” (DS20005359) for more details
on the FG/3, DIR, SS and RT pin functionality.
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.
Note:
Please refer to section Section 3.1.3 “Defining the RPROG Value
Correctly” for more information on the RPROG selection.
The High Z mode allows setting an external RPROG resistor value directly on the
MTD6508 daughter board. This is the default mode used by the MTD6508
Demonstration Board to let the user set the board’s RPROG resistor value when the
board is used in Stand-alone mode. Therefore, it is important to specify a KM before
doing any test when using the MTD6508 Demonstration Board Software GUI.
3.1.1.3
CHART
This section of the GUI graphically represents the current consumption (in mA) of the
MTD6508 device on the VDD pin. It also charts the fan speed in Revolutions Per Minute
(RPM) by measuring the FG frequency. The chart adds ten values per second. The
three buttons in this group have the following functions:
• Start/Stop – allows the value acquisition to start or stop
• Clear – removes all the values added to the chart
• Auto-Scale – allows restoring the default scaling
In Default Scaling mode, the chart will automatically adjust scaling to ensure that
all added values are displayed in the same view. It is also possible to select a part
of the chart with your mouse and zoom into the selection. The mouse wheel zoom
function is also enabled.
The Current axis shows the instant current consumption measured in mA. The Speed
axis displays the instant speed measurement in RPM. By default, the displayed RPM is
valid for motors with two pair of poles and six slots (4P/6S). If the connected motor has
different parameters, the number of poles and slots can be adjusted.
DS50002516A-page 22
2016 Microchip Technology Inc.
Graphical User Interface Description
3.1.1.4
PWM PIN
The PWM Pin group box features a slide bar which allows the user to set the PWM ratio
on the MTD6508 PWM pin. The gauge placed below the slide bar indicates the current
PWM applied.
3.1.1.5
VDD PIN
The VDD Pin group box features a slide bar that allows the user to set the desired VDD
value. The gauge below the slide bar indicates the instant VDD value measured by the
MTD6508 Demonstration Board.
3.1.1.6
SLEW RATE PINS
The Slew Rate group box provides a slide bar to set the desired RSR value.
2016 Microchip Technology Inc.
DS50002516A-page 23
MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633) User’s Guide
3.1.2
Measurement Tab
The Measurement tab provides the tools necessary to determine if the fan is correctly
adapted to the MTD6508 and its settings. These tools are organized in two sub-tabs:
• Settings
• Results
3.1.2.1
SETTINGS TAB
Figure 3-2 shows the Settings tab.
1
7
2
3
4
5
6
Legend:
1
=
General Measurement Settings group box
2
=
Start-up Measurement Settings group box
3
=
PWM Change Measurement Settings group box
4
=
Speed Curve and Stability Measurement Settings group box
5
=
Measurement Control group box
6
=
Measurement Log group box
7
=
Measurement List group box
FIGURE 3-2:
DS50002516A-page 24
GUI – Measurement Tab – Settings.
2016 Microchip Technology Inc.
Graphical User Interface Description
3.1.2.1.1
Measurement Settings
The General Measurement Settings group box is used to specify the measurement corners required:
• Iterations Count – 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 it reaches the minimum
entered PWM value.
• VDD corners are similar to PWM corners. A VDD corner includes all PWM corners.
This means that for one VDD corner, all PWM corners are measured.
• Start-up Check Duration [s] – if the speed of the fan is measured as 0 RPM after this
delay, the start-up is considered a fail. The recommended value for this field is 3s.
• Waiting time between each iteration [s] – specifies how many seconds are
allocated to stop the fan between two tests. This value will depend on the fan lag.
3.1.2.1.2
Start-up Measurement Settings
The Start-up Measurement Settings group box is used to define several start-up
measurement specific parameters.
The Add Start-up Measurement button will create a new start-up measurement item
in the list of measurements. The newly-created item will use both parameters set in this
group box as well as those in the General Measurement Settings group box.
By selecting the “Test lock detection” checkbox, the start-up test will also verify if the
MTD6508 can detect a rotor lock after a successful start-up. After the rotor lock has
occurred, the system checks that the FG output has stopped switching before the time
defined in the “Lock Max Delay [s]” field. The rotor has to be locked by means of an
external motor lock system such as an electromagnetic hammer. The reserve pin of the
MTD6508 Demonstration Board (see Section 2.2 “Board Setup”, Figure 2-1, item 2)
must be used for handling the lock signal. The lock signal is open-drain (5.5V tolerant)
and active-high.
By selecting the “Test locked start-up” checkbox, the start-up test will also verify if the
MTD6508 can detect a locked rotor during start-up. After the rotor lock has occurred,
the system powers up the MTD6508 and checks that the switching FG output has been
stopped before the time specified in the “Lock Max Delay [s]” field. The rotor has to be
locked by means of an external motor lock system such as an electromagnetic
hammer. The reserve pin of the MTD6508 Demonstration Board must be used for
handling the lock signal. The lock signal is open-drain (5.5V tolerant) and active-high.
This locked start-up test is an additional test that will initiate a new power cycle. Thus,
it will not override the regular start-up test.
3.1.2.1.3
PWM Change Measurement Settings
The Add PWM Change Measurement button will add a new PWM change measurement
item into the measurements list. The new item will use the parameters defined in this
group box as well as those in the General Measurement Settings group box.
The PWM Change Measurement starts with the PWM value entered in the
“PWM Start [%]” field. After the specified start-up delay (defined in the “start-up check
duration [s]” field in the General Measurement Settings group box), the PWM starts
changing depending on the PWM corner specified. The software will then verify if the fan
is still running. This last check will occur after the delay set in the “Braking Delay [s]” field.
If the PWM change has been successful and the “Do not restart if success” checkbox
has been selected, the test will simply restore the PWM Start value for the next test
instead of completely restarting the fan.
2016 Microchip Technology Inc.
DS50002516A-page 25
MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633) User’s Guide
3.1.2.1.4
Speed Curve and Stability Measurement Settings
Use the Add Speed Curve Measurement button to add a new speed curve and
stability measurement item into the list of measurements. The new item will use both
the parameters of this group box as well as those set in the General Measurement
Settings group box.
This measurement requires a number of samples defined in the “Sample count per
iteration” field for checking the speed stability.
3.1.2.1.5
Measurement Control
This group box contains three buttons that allows the user to control the work flow:
• Start Measuring – starts and stops the required measurements
• Clear Result – clears the current result displayed on the screen
• Save Now – stores the current measurement in a Microsoft® Excel® file into the
specified folder
If the “Save results at the end of the measurement” checkbox is selected, a copy of the
results will automatically be stored once all measurements have been completed. The
results will be stored in an Excel file in the specified folder.
If the “Save graph on measurement error” checkbox is checked, a copy of the graph
generated by the chart (see Figure 3-2, item 5) will be saved as a picture in the
specified folder in order to diagnose the issue afterwards.
3.1.2.1.6
Measurement Log
This group box contains a log that displays a summary of the issues detected during
measurements.
3.1.2.1.7
Measurement List
This group box consists of a tree view that summarizes all measurements that have
been selected by the user.
The order of the measurements in the list can be edited by right-clicking the selected items.
Right-clicking the measurement items will also allow the user to remove them individually.
The measurement parameters can be edited by double clicking on them.
If the measurement list is edited during an ongoing test, the updated parameters will be
applied only to the upcoming measurements.
DS50002516A-page 26
2016 Microchip Technology Inc.
Graphical User Interface Description
3.1.2.2
MEASUREMENT RESULTS TAB
Figure 3-3 shows the Results sub-tab:
1
4
3
2
Legend:
FIGURE 3-3:
1
=
Measurement Results table
2
=
Measurement Control group box
3
=
Measurement Log group box
4
=
Measurement result area (it fills up progressively as the
results are generated)
GUI – Measurement Tab – Results.
The test results are displayed in this table. All the tests have the first six columns in
common. The other columns are relevant only for specific tests. The buttons that control
the management of the results (Select Location, Save now and Clear Results) are
visible in this tab as well as in the Measurements Settings Tab > Measurement Control
group box (see description in Section 3.1.2.1.5 “Measurement Control”).
2016 Microchip Technology Inc.
DS50002516A-page 27
MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633) User’s Guide
3.1.3
Defining the RPROG Value Correctly
This section explains how to define the KM value correctly for a specific fan.
KM is linked to RPROG (see Table 3-1). Setting an incorrect KM value may result in a
number of issues, including a reduction in efficiency.
3.1.3.1
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) by using this
equation:
EQUATION 3-1:
CALCULATING KM
Vp – p
K = --------------M
2f
KM should remain constant for all fan rotation speeds, but when measuring the KM
value, the fan rotation speed due to the air stream should be close to the nominal fan
rotation speed.
Table 3-1 shows the corresponding KM for different RPROG values.
TABLE 3-1:
KM
KM Range
(mV/Hz)
VBIAS (0Ω)
3
26 - 52
3.9 kΩ
2
13 - 26
RPROG
DS50002516A-page 28
RPROG VALUE
24 kΩ
1
6.5 - 13
GND
0
3.25 - 6.5
2016 Microchip Technology Inc.
MTD6508 3-PHASE BLDC SENSORLESS FAN
CONTROLLER DEMO MOTHERBOARD
(ADM00633) USER’S GUIDE
Appendix A. Schematics and Layouts
A.1
INTRODUCTION
This appendix contains the schematics and layouts for the MTD6508 3-Phase BLDC
Sensorless Fan Controller Demo Motherboard (ADM00633):
•
•
•
•
ADM00633 Board – Schematic: LED Part, Key Part and R_Prog Part
ADM00633 Board – Schematic: Current Sense Part, Digipot Part and Power Part
ADM00633 Board – Schematic: PIC24F Part
ADM00633 Board – Schematic: MTD6508 Connector Part, USB Connection Part
and Probe Part
• ADM00633 Board – Top Silk
• ADM00633 Board – Top Copper and Silk
• ADM00633 Board – Bottom Copper and Silk
2016 Microchip Technology Inc.
DS50002516A-page 29
ADM00633 BOARD – SCHEMATIC: LED PART, KEY PART AND R_PROG PART
LED AND KEY PART
R_PROG PART
B0540WS
LED_KEY4
LED_KEY3
GPIO_0/V PP
D1
GPIO_0_PIC
3
LED_KEY2
C1
0.1 uF
16V
0603
GND
Q1
2 IRLML6402
LED_KEY1
10k
0603
5%
LD6
BLUE
R10
R11
10k
0603
5%
10k
0603
5%
LD7
LD8
BLUE
BLUE
10k
0603
5%
1
R9
R12
10k
0603
5%
D3
Q2
LD9
3
IRLML6402
BLUE
5.5V
R13
10k
0603
5%
1
3V
R14
3
TACT SPST
C7
0.1uF
16V
0603
GND
1 SW2
4
2
3
TACT SPST
2016 Microchip Technology Inc.
4
2
3
TACT SPST
GND
C8
R_PROG_IC
3V
R19
1 SW3
KEY4
0.1uF
16V
0603
GND
3V
10k
0603
5%
R20
10k
0603
5%
KEY1
C12
0.1uF
16V
0603
3
2
KEY3
R_PROG
GND, 3.9K, 24K, VBias
1 SW4
4
2
3
TACT SPST
GND
10k
0603
5%
KEY2
C13
0.1uF
16V
0603
RPROG_GND_PIC
Q3
1
R18
10k
0603
5%
ZXMN2A01F
2
4
R15
10k
0603
5%
VPP_ENB
1N4148
2
TEST_PIC
3V
D2
B0540WS
GND
1 SW1
VPP
R8
GND
MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633) User’s Guide
DS50002516A-page 30
A.2
2016 Microchip Technology Inc.
A.3
ADM00633 BOARD – SCHEMATIC: CURRENT SENSE PART, DIGIPOT PART AND POWER PART
CURRENT SENSE PART
DIGIPOT PART
0.05R shunt 1%
R1
LDO_OUT
U1
VDD_IC
0.05R
1206
1%
SCL
SDA
10 uF
6.3V
0603
SCL
2
3
4
5
VDD
P3W
P3B
HVC/A0
A1
P2W
P2B
SCL
SDA
P1W
P1B
5.5V
U2
GND
3
11
3V
3V
C3
1
12
3V
Vin+
Vin-
Vss
Vdd
SCL
SDA
6
GND
P0W
P0B
VSS
14
13
VBIAS
R_PROG_IC
C5
GND
16.2k
0603
1%
8
7
9
10
3V
R2
GND
SR2
SR1
C4
SDA
MCP3421
GND
10 uF
6.3V
0603
TP LOOP Black TH
C2
10 uF
16V
AL-B
GND
VIN_BOARD
GND
TERMINAL 5 mm Female 1x2
TP2
VIN_BOARD
VIN_BOARD
C6
TP LOOP Black TH
GND
VIN_BOARD
U4
1
VIN
VOUT
LDO_EN
5
3V
DS50002516A-page 31
GND
C10
10 uF
6.3V
0603
3
4
SHDN
PWRGD
GND
MCP1824/3.3V
GND
2
C11
GND
5.5V
1N4148
1 2
TP1
D4
J3
10 uF
6.3V
0603
10 uF
6.3V
0603
R17
10k
0603
5%
U3
2
1
5
VIN
J11
VOUT
4
DNP
C9
SHDN
ADJ
GND
3
1
HDR-2.54 Male 1x1
LDO_OUT
GND
10 uF
6.3V
0603
MCP1826-ADJE/ET
LDO_ADJ_R
R16
220k
0603
1%
Schematics and Layouts
POWER PART
VIN_BOARD
0.1 uF
16V
0603
MCP4452-50k
5
4
6
1
LDO_ADJ_R
2
LDO_ADJ_MID_H
ADM00633 BOARD – SCHEMATIC: PIC24F PART
PIC24F
10k
0603
5%
C15
GND
R28
R29
3V
10k
0603
5%
GND
56
34
35
VCAP/VDDCORE
VBUS
VUSB
10
26
38
19
0.1 uF
16V
0603
RSTB
MCLR
ENVREG
470R
0603
1%
VDD
VDD
VDD
AVDD
9
25
41
20
VSS
VSS
VSS
AVSS
PGED1/AN0/VREF+ /RP0/PMA6/CN2/RB0
PGEC1/AN1/VREF-/RP1/CN3/RB1
AN2/C2INB/VMIO/RP13/CN4/RB2
AN3/C2INA/VPIO/CN5/RB3
PGED3/AN4/C1INB/USBOEN/RP28/CN6/RB4
PGEC3/AN5/C1INA/VBUSON/RP18/CN7/RB5
PGEC2/AN6/RP6/CN24/RB6
PGED2/AN7/RP7/RCV/CN25/RB7
AN8/RP8/CN26/RB8
AN9/RP9/PMA7/CN27/RB9
TMS/CVREF/AN10/PMA13/CN28/RB10
TDO/AN11/PMA12/CN29/RB11
TCK/AN12/PMA11/CTED2/CN30/RB12
TDI/AN13/PMA10/CTED1/CN31/RB13
AN14/CTPLS/RP14/PMA1/CN32/RB14
AN15/RP29/REFO/PMA0/CN12/RB15
OSCI/CLKI/CN23/RC12
SOSCI/C3IND/CN1/RC13
SOSCO/T1CK/C3INC/RPI37/CN0/RC14
OSCO/CLKO/CN22/RC15
R30
470R
J9
0603
1%
C20
0.1 uF
16V
0603
1
MCLRZ
2
3V
3
GND
4
PGED
5
PGEC
6
HDR-2.54 Male 1x6
LDO_EN
3V
2016 Microchip Technology Inc.
GND
RESETB_6508
GPIO_1
C21 C22 C23 C24
PWM_PIC
0.1 uF 0.1 uF 0.1 uF 0.1 uF
USB_D_P
16V
16V
16V
16V
USB_D_N
0603 0603 0603 0603
KEY1
LED_KEY1
58
59
33
31
32
VBUSST/VCMPST1/CN68/RF0
VCMPST2/CN69/RF1
RP16/USBID/CN71/RF3
SDA2/RP10/PMA9/CN17/RF4
SCL2/RP17/PMA8/CN18/RF5
37
36
4
5
6
8
D+/RG2
D-/RG3
C1IND/RP21/PMA5/CN8/RG6
C1INC/RP26/PMA4/CN9/RG7
C2IND/RP19/PMA3/CN10/RG8
RP27/PMA2/C2INC/CN11/RG9
PIC24FJ256GB106
D5
PWM_PIC
PWM_IC
B0540WS
DMH/RP11/INT0/CN49/RD0
VCPCON/RP24/CN50/RD1
DPH/RP23/CN51/RD2
RP22/PMBE/CN52/RD3
RP25/PMWR/CN13/RD4
RP20/PMRD/CN14/RD5
C3INB/CN15/RD6
C3INA/CN16/RD7
RTCC/DMLN/RP2/CN53/RD8
DPLN/SDA1/RP4/CN54/RD9
SCL1/RP3/PMCS2/CN55/RD10
RP12/PMCS1/CN56/RD11
PMD0/CN58/RE0
PMD1/CN59/RE1
PMD2/CN60/RE2
PMD3/CN61/RE3
PMD4/CN62/RE4
PMD5/CN63/RE5
SCL3/PMD6/CN64/RE6
SDA3/PMD7/CN65/RE7
16
15
14
13
12
11
17
18
21
22
23
24
27
28
29
30
LED_KEY4
KEY4
LED_KEY3
KEY3
LED_KEY2
KEY2
PGEC
PGED
VIN_BOARD
R22
10k
0603
5%
R23
GND
VIN_MEAS
VDD_MEAS
VBIAS
RESERVE_EXT
GPIO_3
GPIO_2
PWM_IC
60
61
62
63
64
1
2
3
10k
0603
5%
C17
GND
X1
16 MHz
3V
R24
R26
39
47
48
40
46
49
50
51
52
53
54
55
42
43
44
45
VDD_IC
10k
0603
5%
18 pF
50V
0603
10k
0603
5%
RESET
C16
10 uF
6.3V
0603
SWIT CH PART
1 SW5
4
2
3
R25
10k
0603
5%
RSTB
C18
TACT SPST
0.1 uF
16V
0603
GND
C19
GND
GPIO_0_PIC
FG_IC
TEST_PIC
18 pF
50V
0603
3V
R32
SDA
SCL
1.02k
0603
1%
R33
1.02k
0603
1%
Board Status LED PART
R34
10k
0603
5%
RPROG_GND_PIC
VPP_ENB
PIC_LED_3
PIC_LED_2
PIC_LED_1
3V
R35
10k
0603
5%
LD10
R36
10k
0603
5%
LD11
BLUE
LD12
BLUE
BLUE
PIC_L E D_1
GND
VCAP
V_BUS
3V
7
57
PIC_L E D_2
3V
C14
10 uF
6.3V
0603
U5
MCLRZ
PIC_L E D_3
R21
PART
MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633) User’s Guide
DS50002516A-page 32
A.4
Schematics and Layouts
A.5
ADM00633 BOARD – SCHEMATIC: MTD6508 CONNECTOR PART, USB
CONNECTION PART AND PROBE PART
MTD6508 CONNECTOR PART
GPIO_3
GPIO_2
SR 2
SR 1
GPIO_1
USB CONNECTION PART
1 2 3 4 5
J5
J7
PWM_IC
GPIO_0/VPP
VDD_IC
OUT1
OUT3
V_BUS
1 2 3 4 5
5 4 3 2 1
FG_IC
R_PROG_IC
VBIAS
SDA
SCL
J8
10k
0603
5%
HDR-2.54 Female 1x5
R E SE T B _6508
GND
GND
OUT 2
GND
HDR-2.54 Female 1x5
R27
1
2
3
4
5
USB_D_N
USB_D_P
R31
OUTPUT 1,2,3 connector
J4
1
OUT1
2
OUT2
3
OUT3
HDR-2.54 Male 1x3
1 2 3 4 5
J10
HDR-2.54 Male 1x5
GND
VBUS
DD+
ID
GND
0
HDR-2.54 Female 1x5
J6
USB MINI-B Female
100k
0603
1%
PROBE PART
11 9 7 5 3 1
12 10 8 6 4 2
J1
PWM_IC
3V
GND
SDA
SCL
FG_IC
GPIO_0/VPP
GPIO_1
GPIO_2
GPIO_3
RESERVE_EXT
GND
HDR-2.54 Male 2x6
R3
10k
0603
5%
J2
2 1
DNP
LD1
VPP
5.5V
HDR-2.54 Male 1x2
2016 Microchip Technology Inc.
BLUE
R4
10k
0603
5%
LD2
BLUE
R5
10k
0603
5%
LD3
BLUE
R6
10k
0603
5%
LD4
BLUE
R7
10k
0603
5%
LD5
BLUE
GND
DS50002516A-page 33
MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633) User’s Guide
A.6
ADM00633 BOARD – TOP SILK
A.7
ADM00633 BOARD – TOP COPPER AND SILK
DS50002516A-page 34
2016 Microchip Technology Inc.
Schematics and Layouts
A.8
ADM00633 BOARD – BOTTOM COPPER AND SILK
2016 Microchip Technology Inc.
DS50002516A-page 35
MTD6508 3-PHASE BLDC SENSORLESS FAN
CONTROLLER DEMO MOTHERBOARD
(ADM00633) USER’S GUIDE
Appendix B. Bill of Materials (BOM)
TABLE B-1:
Qty
BILL OF MATERIALS (BOM) – MTD6508 Demonstration Board (ADM00633)
Reference
Description
Manufacturer
Part Number
13
C1, C5, C7, C8,
C12, C13, C15,
C16, C18, C20,
C21, C22, C23,
C24
Cap. ceramic 0.1 µF 16V 10% X7R SMD 0603 AVX Corporation
1
C2
Cap. aluminum 10 µF 16V 20% SMD B
7
C3, C4, C6, C9,
C10, C11, C14
Cap. ceramic 10 µF 6.3V 20% X5R SMD 0603 AVX Corporation
2
C17, C19
Cap. ceramic 18 pF 50V 5% NP0 SMD 0603
KEMET®
C0603C180J5GACTU
3
D1, D3, D5
Diode SCTKY B0540WS 480 mV 500 mA
40V SOD-323
Diodes®
Incorporated
B0540WS-7
2
D2, D4
Diode RECT 1N4148 855 mV 300 mA 75V
SOD-323
Diodes
Incorporated
1N4148WS-7
1
J1
Conn. header - 2.54 Male 2x6 Gold 5.84 MH Samtec®, Inc.
TH vert.
TSW-106-07-G-D
1
J3
Conn. terminal 5 mm 18A Female 1x2 TH R/A PHOENIX
CONTACT
1935161
1
J4
Conn. header - 2.54 Male 1x3 Gold 5.84 MH Samtec, Inc.
TH R/A
TSW-103-08-F-S-RA
3
J5, J6, J7
Conn. header - 2.54 Female 1x5 Gold TH
Mill-Max® Mfg.
Corporation
801-43-005-10-001000
1
J8
Conn. USB mini-B Female SMD R/A
Hirose Electric
Co., Ltd.
UX60-MB-5ST
1
J9
Conn. header - 2.54 Male 1x6 Gold 5.84 MH FCI® Electronics
TH vert.
68001-106HLF
1
J10
Conn. header - 2.54 Male 1x5 Tin 5.84 MH
TH vert.
Samtec, Inc.
TSW-105-07-T-S
12
LD1, LD2, LD3,
LD4, LD5, LD6,
LD7, LD8, LD9,
LD10, LD11,
LD12
Diode LED Blue 2.8V 20 mA 104mcd Clear
SMD 0805
Lite-On®
Technology
Corporation
LTST-C170TBKT
2
Q1, Q2
Trans. FET P-CH IRLML6402 -20V -3.7A
1.3W SOT-23-3
International
Rectifier
IRLML6402TRPBF
1
R1
Res. MS 0.05R 1% 1W SMD 1206
Vishay®
Intertechnology,
Inc.
WSLP1206R0500FEA
1
R2
Res. TKF 16.2k 1% 1/10W SMD 0603
Panasonic –
ECG
ERJ-3EKF1622V
Note 1:
Panasonic® –
ECG
0603YC104KAT2A
EEE-1CA100SR
06036D106MAT2A
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.
DS50002516A-page 36
2016 Microchip Technology Inc.
Bill of Materials (BOM)
TABLE B-1:
Qty
BILL OF MATERIALS (BOM) – MTD6508 Demonstration Board (ADM00633)
Reference
Description
Manufacturer
Part Number
28
R3, R4, R5, R6, Res. TKF 10k 5% 1/10W SMD 0603
R7, R8, R9, R10,
R11, R12, R13,
R14, R15, R17,
R18, R19, R20,
R21, R22, R23,
R24, R25, R26,
R27, R29, R34,
R35, R36
Panasonic –
ECG
ERJ-3GEYJ103V
1
R16
Res. TKF 220k 1% 1/10W SMD 0603
Panasonic –
ECG
ERJ-3EKF2203V
2
R28, R30
Res. TKF 470R 1% 1/10W SMD 0603
Yageo®
Corporation
RC0603FR-07470RL
1
R31
Res. TF 100k 1% 1/8W SMD 0603
Vishay
Intertechnology
MCT06030C1003FP500
2
R32, R33
Res. TKF 1.02k 1% 1/10W SMD 0603
Panasonic –
ECG
ERJ-3EKF1021V
5
SW1, SW2, SW3, Switch tact. SPST 12V 50 mA
SW4, SW5
TL3301NF160QG/TR SMD
E-Switch®, Inc.
TL3301NF260QG/TR
2
TP1, TP2
Conn. TP Loop Black TH
Keystone
5011
Electronics Corp.
1
U1
MCHP Analog DIGIPOT Rheostat 4-Ch 50k
MCP4452-503E/ST TSSOP-14
Microchip
Technology Inc.
MCP4452-503E/ST
1
U2
MCHP Analog ADC-DELTASIGMA 18-bit
MCP3421A1T-E/CH SOT-23-6
Microchip
Technology Inc.
MCP3421A1T-E/CH
1
U3
MCHP Analog LDO ADJ
MCP1826S-ADJE/ET DDPAK-5
Microchip
Technology Inc.
MCP1826-ADJE/ET
1
U4
MCHP Analog LDO 3.3V
MCP1824T-3302E/OT SOT-23-5
Microchip
Technology Inc.
MCP1824T-3302E/OT
1
U5
MCHP MCU 16-BIT 32 MHz 256 kB 16 kB
PIC24FJ256GB106-I/PT TQFP-64
Microchip
Technology Inc.
PIC24FJ256GB106T-I/PT
1
Q3
Trans. FET N-CH ZXMN2A01F 20V 1.9A
625 mW SOT-23-3
Diodes
Incorporated
ZXMN2A01FTA
1
X1
Crystal 16 MHz 18 pF SMD HC49/US
Abracon®
ABLS-16.000MHZ-B4-T
Corporation
Note 1:
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.
2016 Microchip Technology Inc.
DS50002516A-page 37
MTD6508 3-Phase BLDC Sensorless Fan Controller Demo Motherboard (ADM00633) User’s Guide
NOTES:
DS50002516A-page 38
2016 Microchip Technology Inc.
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Fax: 82-2-558-5932 or
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06/23/16
2016 Microchip Technology Inc.
DS50002516A-page 39
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