MCP19117
Flyback Stand-Alone
Evaluation Board
User’s Guide
2016 Microchip Technology Inc.
DS50002472A
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
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•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
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Microchip is willing to work with the customer who is concerned about the integrity of their code.
•
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DS50002472A-page 2
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All other trademarks mentioned herein are property of their
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© 2016, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
ISBN: 978-1-5224-0421-7
2016 Microchip Technology Inc.
Object of Declaration: MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
2016 Microchip Technology Inc.
DS50002472A-page 3
MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
NOTES:
DS50002472A-page 4
2016 Microchip Technology Inc.
MCP19117 FLYBACK
STAND-ALONE EVALUATION
BOARD USER’S GUIDE
Table of Contents
Preface ........................................................................................................................... 7
Introduction............................................................................................................ 7
Document Layout .................................................................................................. 7
Conventions Used in this Guide ............................................................................ 8
Recommended Reading........................................................................................ 9
The Microchip Web Site ........................................................................................ 9
Customer Support ................................................................................................. 9
Document Revision History ................................................................................... 9
Chapter 1. Product Overview
1.1 Introduction ................................................................................................... 11
1.2 MCP19117 Short Overview .......................................................................... 11
1.3 What is the MCP19117 Flyback Stand-Alone Evaluation Board? ................ 13
1.4 MCP19117 Flyback Stand-Alone Evaluation Board Kit Contents ................ 13
Chapter 2. Installation and Operation
2.1 About the MCP19117 Flyback Stand-Alone Evaluation Board .................... 15
2.2 System and Configuration Requirements ..................................................... 15
2.3 Connecting Power Input and Output ............................................................ 16
2.4 Installing the MCP19117 Flyback Standalone GUI ...................................... 17
2.5 Reprogramming the MCP19117 Flyback Stand-Alone Evaluation Board .... 18
Chapter 3. Graphical User Interface (GUI) Features
3.1 About the MCP19117 Flyback Standalone GUI ........................................... 21
3.1.1 Prerequisites .................................................................................. 21
3.1.2 Launching the GUI ......................................................................... 22
3.2 MCP19117 Flyback Standalone GUI Description ........................................ 23
3.2.1 System Parameters Area .............................................................. 23
3.2.2 Advanced Register Update Area ................................................... 27
3.2.3 Register Online Adjust Area .......................................................... 28
3.2.4 Control Buttons Area ..................................................................... 28
3.2.5 Operating Status Box Area ............................................................ 29
Appendix A. Schematic and Layouts
A.1 Introduction .................................................................................................. 31
A.2 Board – Schematic ....................................................................................... 32
A.3 Board – Top Layer ....................................................................................... 33
2016 Microchip Technology Inc.
DS50002472A-page 5
MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
A.4 Board – Top Copper .................................................................................... 34
A.5 Board – Mid Layer 1 ..................................................................................... 35
A.6 Board – Mid Layer 2 ..................................................................................... 36
A.7 Board – Bottom Copper ............................................................................... 37
A.8 Board – Bottom Layer .................................................................................. 38
Appendix B. Bill of Materials (BOM) ...........................................................................39
Worldwide Sales and Service .....................................................................................42
DS50002472A-page 6
2016 Microchip Technology Inc.
MCP19117 FLYBACK
STAND-ALONE EVALUATION
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
MCP19117 Flyback Stand-Alone Evaluation 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 install the MCP19117 Flyback Stand-Alone Evaluation
Board. It also describes how to operate the Evaluation Board. The manual layout is as
follows:
• Chapter 1. “Product Overview” – Important information about the MCP19117
Flyback Stand-Alone Evaluation Board.
• Chapter 2. “Installation and Operation” – Includes instructions on how to get
started with the MCP19117 Flyback Stand-Alone Evaluation Board.
• Chapter 3. “Graphical User Interface (GUI) Features” – Includes instructions
on the MCP19117 Flyback Standalone GUI.
• Appendix A. “Schematic and Layouts” – Shows the schematic and layout
diagrams for the MCP19117 Flyback Stand-Alone Evaluation Board.
• Appendix B. “Bill of Materials (BOM)” – Lists the parts used to build the
MCP19117 Flyback Stand-Alone Evaluation Board.
2016 Microchip Technology Inc.
DS50002472A-page 7
MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description
Arial font:
Italic characters
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
#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}
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 code supplied by
user
DS50002472A-page 8
Examples
File>Save
Press <Enter>, <F1>
var_name [,
var_name...]
void main (void)
{ ...
}
2016 Microchip Technology Inc.
Preface
RECOMMENDED READING
This user's guide describes how to use MCP19117 Flyback Stand-Alone Evaluation
Board. Other useful documents are listed below. The following Microchip documents
are available and recommended as supplemental reference resources.
• MCP19116/7 Data Sheet – “Digitally Enhanced Power Analog Synchronous
Low-Side PWM Controller” (DS20005479)
• MPLAB® X IDE User Guide – “PICkit™ 3 In-Circuit Debugger/Programmer
User’s Guide For MPLAB® X IDE” (DS52116)
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 (March 2016)
Initial Release of this Document.
2016 Microchip Technology Inc.
DS50002472A-page 9
MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
NOTES:
DS50002472A-page 10
2016 Microchip Technology Inc.
MCP19117 FLYBACK
STAND-ALONE EVALUATION
BOARD USER’S GUIDE
Chapter 1. Product Overview
1.1
INTRODUCTION
This chapter provides an overview of the MCP19117 Flyback Stand-Alone Evaluation
Board and covers the following topics:
• MCP19117 Short Overview
• What is the MCP19117 Flyback Stand-Alone Evaluation Board?
• MCP19117 Flyback Stand-Alone Evaluation Board Kit Contents
1.2
MCP19117 SHORT OVERVIEW
The MCP19117 is a highly integrated, mixed-signal, analog pulse width-modulation
(PWM) current mode controller with an integrated microcontroller core, and offers synchronous or asynchronous operation. Since the MCP19117 device uses traditional
analog control circuitry to regulate the output current or voltage, the integration of the
PIC® microcontroller mid-range core is used to provide complete customization of the
device’s operating parameters, protection levels, programmable offset, dead-times,
slope compensation and fault handling procedures.
The MCP19117 has two internal low drop-out regulators (LDOs). A 5V LDO (VDD) provides internal power to all the digital circuitry and can supply limited external power at
the VDD pin. A 4V LDO (AVDD) provides power to the internal analog circuitry and supplies the reference voltage to the ADC. This device features synchronous low-side integrated drivers and 8k Words non-volatile memory, all in a space-saving 28-pin 5x5 mm
QFN package.
To support traditional MOSFETs, pin 20 (VDR) is used to provide input power to the two
low-side synchronous gate drivers. The evaluation board is populated with the
Microchip TC1240AECHTR voltage doubler. Resistor population provides the option of
powering VDR with 10V through the TC1240AECHTR voltage doubler (R19, R21
populated; R22 not populated) or 5V (R22 populated; R19, R21 not populated)
gate-drive capability.
User firmware, including device configuration, is loaded using Microchip’s MPLAB® X
Integrated Development Environment (IDE). A graphical user’s interface (GUI) is used
to communicate with and edit operating parameters of the MCP19117. The GUI communicates via I2C using the PICkit™ Serial Analyzer.
The GUI offers the user the ability to adjust the programmable features available in the
MCP19117. Note that the interface cannot stop the user from uploading incorrect settings to the device. Incorrect settings may have unintended consequences, including,
but not limited to, unstable operation, damaging the load, and even damaging of the
MCP19117 device. It is the user's responsibility to understand the system effects of the
parameters they enter.
2016 Microchip Technology Inc.
DS50002472A-page 11
FIGURE 1-1:
Typical MCP19117 Flyback Application – Two String LED Driver.
MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
DS50002472A-page 12
2016 Microchip Technology Inc.
Product Overview
1.3
WHAT IS THE MCP19117 FLYBACK STAND-ALONE EVALUATION BOARD?
The MCP19117 Flyback Stand-Alone Evaluation Board is intended to
demonstrate how the MCP19117 device operates in a synchronous flyback
topology. It is configured to regulate load current and is also well-suited to drive
LED loads. Nearly all operational and control system parameters are
programmable by utilizing the integrated PIC Microcontroller core.
The MCP19117 Flyback Stand-Alone Evaluation Board is delivered
preprogrammed with firmware designed to operate with the GUI interface.
MPLAB X IDE software can be used to download user-defined firmware, thus
tailoring it to their specific application.The evaluation board contains headers
for In-Circuit Serial Programming™ (ICSP) as well as I2C communication.
Several test points have been designed into the printed circuit board for easy
access and development purposes. The MCP19117 Flyback Stand-Alone
Evaluation Board is also intended to demonstrate an optimized printed circuit
board (PCB) layout that minimizes parasitics while increasing efficiency and
power density. Proper PCB layout is critical to achieve optimum MCP19117
operation as well as power train efficiency and noise minimization. The
MPLAB X IDE, MCP19117 Flyback Standalone GUI and MCP19117 Flyback
Stand-Alone firmware are available for download from Microchip’s web site.
See Chapter 3. “Graphical User Interface (GUI) Features” for details.
1.4
MCP19117 FLYBACK STAND-ALONE EVALUATION BOARD KIT CONTENTS
The MCP19117 Flyback Stand-Alone Evaluation Board includes the following
items:
• MCP19117 Flyback Stand-Alone Evaluation Board (ADM00663)
• Important Information Sheet
2016 Microchip Technology Inc.
DS50002472A-page 13
MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
NOTES:
DS50002472A-page 14
2016 Microchip Technology Inc.
MCP19117 FLYBACK
STAND-ALONE EVALUATION
BOARD USER’S GUIDE
Chapter 2. Installation and Operation
2.1
ABOUT THE MCP19117 FLYBACK STAND-ALONE EVALUATION BOARD
The MCP19117 is a digitally-enhanced, power analog, synchronous low-side PWM
controller. The GUI was developed to assist users in easily configuring the MCP19117
and evaluating it in their target application.
The MCP19117 Flyback Stand-Alone Evaluation Board is designed to operate from a
single supply (nominal 8V to 14V, 24V maximum). The primary side MOSFET has a
maximum VDS rating of 100V. Users should be cautious that this 100V rating is not
exceeded when determining input and output conditions for their application. The
coupled inductor has a 2:1 ratio. The secondary MOSFET has a 200V maximum VDS
rating.
The default configuration provides the gate drive supply (VDR) with 10V. Adequate
ceramic and bulk capacitors are supplied on the input to reduce the root mean square
(RMS) ripple current and lessen input voltage deviation caused by load transients.
Ceramic capacitors are also provided on the output to reduce voltage ripple and
provide energy to the output while the primary side is being re-energized.
The MCP19117 Flyback Stand-Alone Evaluation Board is fully assembled, programmed and tested to evaluate and demonstrate the MCP19117 operating performance. Users will need to download and install the MCP19117 Flyback Standalone
GUI from the Microchip website and become familiar with its operation before powering
the MCP19117 Flyback Stand-Alone Evaluation Board.
2.2
SYSTEM AND CONFIGURATION REQUIREMENTS
To power-up and run the MCP19117 Flyback Stand-Alone Evaluation Board, the
following is required:
• MCP19117 Flyback Standalone GUI
• MCP19117 Flyback Stand-Alone Evaluation Board
• PICkit Serial Analyzer
For USB connectivity, the minimal physical requirement for the PC is a standard USB
2.0 port. If the board connects to the PC through a USB hub, use a self-powered hub.
The MCP19117 Flyback Stand-Alone Evaluation Board comes with preprogrammed
firmware installed to operate with the GUI. To reprogram the device, the following tools
are required:
•
•
•
•
•
MPLAB X IDE (version 3.05 or later)
MPLAB® XC8 C Compiler (v1.35 or later)
MCP19117 Flyback Standalone Firmware
MCP19117 Flyback Stand-Alone Evaluation Board
PICkit™ 3 In-Circuit Debugger/Programmer
The MCP19117 Flyback Standalone GUI requires a Microsoft Windows® XP/7/8
operating system and a minimum screen resolution of 1024 x 768.
Note:
2016 Microchip Technology Inc.
The factory-loaded firmware requires the use of the provided GUI to
function. Without the GUI, the evaluation board does not operate.
DS50002472A-page 15
MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
2.3
CONNECTING POWER INPUT AND OUTPUT
Use the VIN and GND Test Points as shown below. Nominal VIN is +8V to +14V with
the Positive terminal (Red) connected to VIN and the Negative terminal (Black)
connected to GND.
VOUT
GND
GND
VIN
FIGURE 2-1:
Applying Power to the Board.
CAUTION
Primary side MOSFET is Rated to 100V. The transformer turns ratio is 1:2.
Do NOT exceed the 100V MOSFET Rating. Primary MOSFET (OFF) VDS = 0.5 x VOUT + VIN.
DS50002472A-page 16
2016 Microchip Technology Inc.
Installation and Operation
2.4
INSTALLING THE MCP19117 FLYBACK STANDALONE GUI
The MCP19117 comes programmed with generic firmware that is compatible with the
standalone GUI. It is up to the user to modify or create new firmware dedicated to their
stand-alone application if different functionality is required.
Note:
If the default firmware is modified, the GUI may no longer be compatible
with the MCP19117 Flyback Stand-Alone Evaluation Board.
Perform the following steps to install the MCP19117 Flyback Standalone GUI:
1. Download the MCP19117 Flyback Standalone GUI software package from the
Microchip web site.
2. Extract the content of the archive files on the computer.
3. Double-click the setup.exe file to start software installation. Press the Install
button in the Application Install window (Figure 2-2). After the installation
completes, the application window is displayed (as shown in Figure 3-2 of
Chapter 3. “Graphical User Interface (GUI) Features”).
FIGURE 2-2:
MCP19117 Flyback Standalone GUI Installation Window.
2016 Microchip Technology Inc.
DS50002472A-page 17
MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
2.5
REPROGRAMMING THE MCP19117 FLYBACK STAND-ALONE EVALUATION
BOARD
Perform the following steps to install necessary software and begin reprogramming the
MCP19117 device:
1. If MPLAB X IDE is already installed, go to Step 2. If not, download MPLAB X IDE
from: www.microchip.com/mplabx, and follow the installation instructions.
2. If the MPLAB XC8 C Compiler, or a compatible equivalent, is already installed in
MPLAB X IDE, go to Step 3. If not, you can download a free version of the
MPLAB XC8 C Compiler from: www.microchip.com/mplabxc. The user guide,
installation instructions, and download links are available on the web page.
3. Download the MCP19117 - Flyback Stand-Alone Firmware
(ADM00663_02_10403_U1-R2_Firmware.zip) from
www.microchip.com/mcp19117 under "Documentation".
4. Unzip the MCP19117 - Flyback Stand-Alone Firmware archive. Place the
MCP19117 project folder in the desired folder location.
Note:
When installed, MPLAB X IDE automatically creates a project folder. In
Windows, this folder is typically located under
drive\Users\user_name\MPLABXProjects.
5. Power-up the MCP19117 Flyback Stand-Alone Evaluation Board.
6. Connect the PICkit 3 In-Circuit Debugger to the MCP19117 Flyback Stand-Alone
Evaluation Board via the 6-pin connector J3, as seen in Figure 2-3. For more
information about PICkit 3 In-Circuit Debugger refer to the PICkit™ 3 In-Circuit
Debugger/Programmer User’s Guide For MPLAB® X IDE (DS52116).
FIGURE 2-3:
PICkit 3 In-Circuit Debugger/Programmer Connected to the
MCP19117 Flyback Stand-Alone Evaluation Board.
DS50002472A-page 18
2016 Microchip Technology Inc.
Installation and Operation
7. Open MPLAB X IDE to load the MCP19117 Flyback Stand-Alone firmware. From
the File menu select Open Project (Figure 2-4).
FIGURE 2-4:
Opening Project in MPLAB X IDE.
8. Browse for the location of the extracted firmware. Select the
MCP19117_Stand_Alone from the list, then check the Open as Main Project
option. Click the Open Project button to complete loading the file.
FIGURE 2-5:
2016 Microchip Technology Inc.
Loading Firmware into MPLAB X IDE.
DS50002472A-page 19
MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
9. When the project is open, click the Make and Program Device Main Project button on the tool bar
to program the device. Wait until the program process is complete (see Figure 2-6).
FIGURE 2-6:
IDE.
DS50002472A-page 20
Selecting and Executing the Make and Program Device Main Project in MPLAB X
2016 Microchip Technology Inc.
MCP19117 FLYBACK
STAND-ALONE EVALUATION
BOARD USER’S GUIDE
Chapter 3. Graphical User Interface (GUI) Features
3.1
ABOUT THE MCP19117 FLYBACK STANDALONE GUI
This chapter describes the steps that are required to launch the MCP19117 Flyback
Standalone GUI.
3.1.1
Prerequisites
Prior to starting the GUI, perform these actions:
1. Apply an input voltage in the normal operating range (8V to 14V) at the VIN and
Ground test points.
2. Connect the PICkit Serial Analyzer to the PC through USB port and then connect
the analyzer to the Control Board via the 6-pin serial connector J5 (Figure 3-1).
FIGURE 3-1:
2016 Microchip Technology Inc.
PICkit Serial Analyzer Connection to the Board.
DS50002472A-page 21
MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
3.1.2
Launching the GUI
To start the GUI, select Start > All Programs > Microchip Technology
Inc. > MCP19117 FLYBACK_STANDALONE_GUI.
The interface detects the MCP19117 device automatically and is ready for use (see
Figure 3-2).
Advanced
Register
Update
System
Parameters
Register
Online Adjust
Control
Buttons
Operating
Status
Box
FIGURE 3-2:
DS50002472A-page 22
MCP19117 Flyback Standalone GUI - Initial Screen.
2016 Microchip Technology Inc.
Graphical User Interface (GUI) Features
3.2
MCP19117 FLYBACK STANDALONE GUI DESCRIPTION
As depicted in Figure 3-2, the MCP19117 Flyback Standalone GUI is divided into five
areas:
•
•
•
•
•
System Parameters Area
Advanced Register Update Area
Register Online Adjust Area
Control Buttons Area
Operating Status Box Area
3.2.1
System Parameters Area
The following sections are available in the System Parameters Area
•
•
•
•
•
•
Drivers Enable/Disable Section
Operating Mode Section
Parameters Section
Protection Section
Switches Enable/Disable Section
Test Pin Section
3.2.1.1
DRIVERS ENABLE/DISABLE SECTION
The “Drivers Enable/Disable” section contains an “ON” and an “OFF” check box. If the
“OFF” check box is selected (default), the system turns off the Primary and Secondary
Drivers and all the sections in the MCP19117 Flyback Standalone GUI become read
only. In order for the sections to become editable, select the “ON” check box.
3.2.1.2
OPERATING MODE SECTION
The “Operating Mode” section controls how the Flyback converter operates. Options
are:
• Quasi-resonant: the controller will run Quasi-resonant mode and the switching
frequency will vary depending on the operation conditions.
• Fixed Frequency: the switching frequency parameters are adjustable. By default,
the check box is selected.
FIGURE 3-3:
Operating Mode Options.
This section also contains a selection named Synchronous Operation. When the ON
check box in the Drivers Enable/Disable section is selected, the Synchronous
Operation check box is automatically selected – setting the MCP19117 Flyback
Stand-Alone Evaluation Board to function in Synchronous mode.
If the Synchronous Operation check box is cleared, the evaluation board is set to
function in Asynchronous Operation mode, which disables the secondary driver
(SDRV).
2016 Microchip Technology Inc.
DS50002472A-page 23
MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
3.2.1.3
PARAMETERS SECTION
This section controls the Switching Frequency, Maximum Duty Cycle, Output Current
and Current Sense Resistor parameters, as shown in Figure 3-4
FIGURE 3-4:
Parameters Options
The switching frequency is user programmable in Fixed Frequency mode over the
range of 60 kHz to 1 MHz. Switching Frequency can be adjusted in 10 kHz intervals.
The maximum duty cycle is programmable from 0 to 100%.
CAUTION
Increasing switching frequency results in increased switching losses in the MOSFETs.
It is the user's responsibility to ensure that the MOSFETs are operated within their safe
operating range.
The Output Current can be adjusted within a range of 0 to 500 mA. The Current Sense
Resistor (R6) value on the MCP19117 Flyback Stand-Alone Evaluation Board is
200 m. Both of these values are used to calculate the set point value written to the
VREFCON register. Do NOT raise the resistor value in the GUI without changing the
resistor on the evaluation board to match. Failure to do so could result in damage to
the evaluation board.
Note:
DS50002472A-page 24
Attempting to write a value larger than 0xFF to VREFCON is prohibited by
the GUI.
2016 Microchip Technology Inc.
Graphical User Interface (GUI) Features
3.2.1.4
PROTECTION SECTION
The “Protection” section (see Figure 3-5) allows the user to set levels for the three
adjustable protection features:
• Enable Input OVLO: specified range of 9V to 24V. The default setting is 18V. This
parameter is configurable per its specified range.
• Enable Input UVLO: specified range is 4V to 20V. The default setting is 8V. This
parameter is configurable per its specified range.
• Enable Output OVLO: configurable range between 0V and 60V. The default
setting is 40V.
FIGURE 3-5:
Protection Options.
In order for the user to be able to set different values, the corresponding check boxes
of the features must be selected. Otherwise, the protections are not applied.
The LED (marked with D2) on the evaluation board is used to indicate various fault
conditions. The firmware will flash this LED to indicate each of the following fault
conditions:
• VIN UVLO FAULT: Short Flash Routine
• VIN OVLO FAULT: Long Flash Routine
• OUTPUT OV FAULT: Short/Long Flash Routine
WARNING
Use caution when changing from these default settings to ensure that damage will not
occur. The VINUVLO, VINOVLO and Output OV controls adjust the VINUVLO, VINOVLO
and OVREFCON registers, respectively.
3.2.1.5
SWITCHES ENABLE/DISABLE SECTION
There are two general purpose MOSFET low-side series switches located on
MCP19117 Flyback Stand-Alone Evaluation Board (LSW1 and LSW2). The check
boxes named “Switch 1” and “Switch 2” in the Switches Enable/Disable section of the
GUI allow the user to turn these switches ON (selected) and OFF (cleared).
2016 Microchip Technology Inc.
DS50002472A-page 25
MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
3.2.1.6
TEST PIN SECTION
The “Test Pin” section of the GUI has a drop-down menu that allows users to select and
connect test signals to GPIO GPA0. These signals are accessible at the test point
labeled TEST. The Test Pin can be configured to output several analog or digital
parameters. See Figure 3-6 for the list of signals.
FIGURE 3-6:
DS50002472A-page 26
Test Pin Options.
2016 Microchip Technology Inc.
Graphical User Interface (GUI) Features
3.2.2
Advanced Register Update Area
This section of GUI gives the user more options to configure and operate the
MCP19117 Flyback Stand-Alone Evaluation Board (see Figure 3-7).
Leading
Edge
Blanking
Secondary
Driver Deadtime
Slope
Compensation
Primary Driver
Deadtime
Input Current
Offset
FIGURE 3-7:
Special
Function
Registers
Update Section
Advanced Register Update Options.
Note that the Enable Edit check box must be selected in order for the section to become
editable.
The parameters have drop-down lists with predetermined values can be selected.
.The adjustable parameters are the following:
•
•
•
•
•
LEB: selects a time period (in nS) for the Leading Edge Blanking
PDRV Deadtime: sets the delay time (in nS) for the primary driver
SDRV Deadtime: sets the delay time (in nS) for the secondary driver
Input Current Offset:: sets a value (in mV) in for the input current offset
Slope Compensation: sets a value for the slope compensation
In addition, this section allows users to update up to four Special Function Registers
(SFR) at the same time. For more information on Special Function Registers, refer to
the MCP19116/7 Data Sheet – “Digitally Enhanced Power Analog Synchronous
Low-Side PWM Controller” (DS20005479).
2016 Microchip Technology Inc.
DS50002472A-page 27
MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
3.2.3
Register Online Adjust Area
The “Register Online Adjust” section of the GUI allows the user to have direct control
of register values at any time when operating the MCP19117. The device data sheet
contains information on register address locations and content. Reads and writes are
done in hexadecimal format. Users must select the proper bank, which is especially
important when executing a write. It is good practice to always execute an address read
before a write, to check for expected results. This may help prevent an unintended write
to an improper address or bank. Please note that the Update button will not update this
section.
FIGURE 3-8:
3.2.4
Register Online Adjust Options.
Control Buttons Area
From left to right (see Figure 3-9), the following four buttons are available:
•
•
•
•
Initialize PICKit Serial button (selectable self-test option)
Check for Evaluation Board button (selectable self-test option)
Update button
Turn Off Drivers button
FIGURE 3-9:
Control Buttons.
In this section the user can perform the following actions:
• Click the Initialize PICkit Serial button for the system to check the communication between your computer and PICkit Serial Analyzer.
• Click the Check for Evaluation Board to manually ask the system to detect the
evaluation board.
• Click the Update button to apply the configuration settings made in “Operating
Mode”, “Parameters”, “Protection”, “Switches Enable/Disable”, and “Advanced
Register Update” areas. Clicking Update also turns on the output drivers. Note
that it does not update information in the Register Online Adjust area.
• The Turn Off Drivers button is a master stop that shuts off the output drivers.
Clicking this button disables both primary and secondary drivers.
The system communicates whether the user action was successful or not in the Operating Status Box (see Figure 3-10).
DS50002472A-page 28
2016 Microchip Technology Inc.
Graphical User Interface (GUI) Features
3.2.5
Operating Status Box Area
This text-box provides messages and operating status to the user. By default, the text
box is blank. It is populated when actions are performed in other sections of the GUI
(see Figure 3-10). The information is system-generated and read-only.
FIGURE 3-10:
Operating Status Box.
The following messages are examples of text that may appear in this area:
• MCP19117 Evaluation Board Not Detected
• PICkit Serial correctly configured for I2C
• MCP19117 Evaluation Board Update Successful
2016 Microchip Technology Inc.
DS50002472A-page 29
MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
NOTES:
DS50002472A-page 30
2016 Microchip Technology Inc.
MCP19117 FLYBACK
STAND-ALONE EVALUATION
BOARD USER’S GUIDE
Appendix A. Schematic and Layouts
A.1
INTRODUCTION
This appendix contains the following schematics and layouts for the MCP19117
Flyback Stand-Alone Evaluation Board:
•
•
•
•
•
•
•
Board – Schematic
Board – Top Layer
Board – Top Copper
Board – Mid Layer 1
Board – Mid Layer 2
Board – Bottom Copper
Board – Bottom Layer
2016 Microchip Technology Inc.
DS50002472A-page 31
'13
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MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
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DS50002472A-page 32
X)
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A.2
¤
2016 Microchip Technology Inc.
Schematic and Layouts
A.3
BOARD – TOP LAYER
2016 Microchip Technology Inc.
DS50002472A-page 33
MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
A.4
BOARD – TOP COPPER
DS50002472A-page 34
2016 Microchip Technology Inc.
Schematic and Layouts
A.5
BOARD – MID LAYER 1
2016 Microchip Technology Inc.
DS50002472A-page 35
MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
A.6
BOARD – MID LAYER 2
DS50002472A-page 36
2016 Microchip Technology Inc.
Schematic and Layouts
A.7
BOARD – BOTTOM COPPER
2016 Microchip Technology Inc.
DS50002472A-page 37
MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
A.8
BOARD – BOTTOM LAYER
DS50002472A-page 38
2016 Microchip Technology Inc.
MCP19117 FLYBACK
STAND-ALONE EVALUATION
BOARD USER’S GUIDE
Appendix B. Bill of Materials (BOM)
TABLE 2-1:
Qty.
BILL OF MATERIALS (BOM)
Reference
Description
Manufacturer
Part Number
4
C1, C2,
C9, C10
DO NOT POPULATE
1
C3
CAP CER 1 µF 100V 10% X7R SMD 1206
Taiyo Yuden Co.,
Ltd.
2
C4, C5
CAP CER 10 µF 50V 20% X7S SMD 1210
TDK Corporation
C3225X7S1H106M
2
C6, C11
CAP CER 2.2 µF 50V 10% X7R SMD 1206
TDK Corporation
CGA5L3X7R1H225K160AB
1
C7
CAP CER 4.7 µF 50V 10% X7R SMD 1206
TDK Corporation
C3216X7R1H475K160AC
1
C8
CAP CER 3.3 µF 50V 10% X7R SMD 1206
TDK Corporation
C3216X7R1H335K160AC
2
C12
CAP CER 1 µF 25V 10% X7R SMD 0603
TDK Corporation
CGA3E1X7R1E105K080AC
2
C13, C14
DO NOT POPULATE
TDK Corporation
C1608X5R1C475K080AC
HMK316B7105KL-T
2
C15, C16
CAP CER 4.7 µF 16V 10% X5R SMD 0603
1
C17
CAP CER 220 pF 50V 5% NP0 SMD 0603
1
C18
KEMET
C0603C221J5GACTU
CAP CER 1000 pF 50V 20% X7R SMD 0603 Panasonic® - ECG ECJ-1VB1H102K
1
C19
CAP CER 10000 pF 25V 10% X7R SMD 0603 Panasonic - ECG
ECJ-1VB1E103K
1
C20
CAP CER 1 µF 25V 20% X5R SMD 0603
Panasonic - ECG
ECJ-1V41E105M
1
C21
CAP CER 0.1 µF 50V 20% Y5V SMD 0603
AVX Corporation
06035G104ZAT2A
1
D1
DIO RECTARR BAV23,215 1V 225 mA 200V NXP
SMD SOT-143B
Semiconductors
1
LD1
DIO LED RED 1.8V 40 mA 10 mcd Clear
SMD 0603
3
Q1, Q3, Q4
TRANS FET N-CH SIS890DN-T1-GE3 100V Vishay Siliconix
8.8A 52W PowerPAK 1212-8
SIS890DN-T1-GE3
1
Q2
TRANS FET N-CH BSZ900N20NS3 G 200V Infineon
15.2A 62.5W 8-PowerTDFN
Technologies AG
BSZ900N20NS3 G
2
R1, R2
RES TKF 3.92 k1% 1/10W SMD 0603
Panasonic - ECG
ERJ-3EKF3921V
6
R3, R5,
R15, R16,
R17, R21,
R23, R24,
R25, R26,
R27
RES TKF 0 1/10W SMD 0603
Panasonic - ECG
ERJ-3GSY0R00V
1
R4
RES TF 0.05 1% 1W SMD 0612
Susumu Co., LTD. PRL1632-R050-F-T1
1
R6
RES TKF 0.2 1% 1W SMD 0612
ROHM
Semiconductor
LTR18EZPFLR200
1
R7
RES TF 100k 1% 1/8W SMD 0603
Vishay
Intertechnology,
Inc.
MCT06030C1003FP500
1
R8
DO NOT POPULATE
Note 1:
Lite-On®, Inc.
BAV23,215
LTST-C190KRKT
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.
DS50002472A-page 39
MCP19117 Flyback Stand-Alone Evaluation Board User’s Guide
TABLE 2-1:
Qty.
BILL OF MATERIALS (BOM) (CONTINUED)
Reference
Description
Manufacturer
Part Number
1
R9
RES TKF 4.02k 1% 1/10W SMD 0603
Stackpole
Electronics, Inc.
RMCF0603FT4K02
4
R10, R12,
R13, R14
RES TKF 10k 5% 1/10W SMD 0603
Panasonic - ECG
ERJ-3GEYJ103V
1
R11
RES TKF 1.02k 1% 1/10W SMD 0603
Panasonic - ECG
ERJ-3EKF1021V
1
R18
RES TKF 475 1% 1/10W SMD 0603
Panasonic - ECG
ERJ-3EKF4750V
1
R19
RES TKF 10 5% 1/10W SMD 0603
Panasonic - ECG
ERJ-3GEYJ100V
1
R22
RES TKF 10 5% 1/10W SMD 0603
DO NOT POPULATE
Panasonic - ECG
ERJ-3GEYJ100V
1
TR1
TRANS SMPS Flyback 1:1,2:1 SMD
Würth Elektronik
750341878
1
U1
MCHP ANALOG PWM CONTROLLER
2 MHz MCP19117-E/MQ QFN-28
Microchip
Technology Inc.
MCP19117-E/MQ
1
U2
MCHP ANALOG CHARGE PUMP 5V - 11V
TC1240A SOT-23-6
Microchip
Technology Inc.
TC1240AECHTR
Note 1:
TABLE B-1:
Qty
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.
BILL OF MATERIALS (BOM) - MECHANICAL PARTS
Reference
Description
Manufacturer
Part Number
1
PCB
Printed Circuit Board - MCP19117
—
Flyback Stand-Alone Evaluation Board
04-10403-R1
18
DESAT_N, DESAT_P, GPA2,
GPA6, ICOMP, IFB, IP, ISN,
ISP, PDRV, RX/DT, SDRV,
SW1, SW2, TEST, TP1,
VREF2, VS
MISC, TEST POINT MULTI PURPOSE Keystone
MINI BLACK;
Electronics
DO NOT POPULATE
Corp.
5001
2
J3,J5
CON HDR-2.54 Male 1x6 Gold 5.84 MH Samtec, Inc.
SMD VERT
TSM-106-01-L-SV
4
PAD1, PAD2, PAD3, PAD4
MECH HW RUBBER PAD CYLINDRICAL D7.9 H5.3 BLACK
3M
SJ61A11
6
SW_1, SW_2, TP_PGND1,
TP_PGND2, TP_VIN,
TP_VOUT
CON TP LOOP SILVER 3.4x5 SMD
Component
Corporation
TP-107-2
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.
DS50002472A-page 40
2016 Microchip Technology Inc.
Bill of Materials (BOM)
NOTES:
2016 Microchip Technology Inc.
DS50002472A-page 41
Worldwide Sales and Service
AMERICAS
ASIA/PACIFIC
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EUROPE
Corporate Office
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Fax: 480-792-7277
Technical Support:
http://www.microchip.com/
support
Web Address:
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Asia Pacific Office
Suites 3707-14, 37th Floor
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Tel: 86-592-2388138
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Tel: 43-7242-2244-39
Fax: 43-7242-2244-393
China - Zhuhai
Tel: 86-756-3210040
Fax: 86-756-3210049
Denmark - Copenhagen
Tel: 45-4450-2828
Fax: 45-4485-2829
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Tel: 91-80-3090-4444
Fax: 91-80-3090-4123
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Tel: 678-957-9614
Fax: 678-957-1455
Hong Kong
Tel: 852-2943-5100
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Australia - Sydney
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Fax: 61-2-9868-6755
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Tel: 216-447-0464
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Detroit
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Tel: 248-848-4000
Houston, TX
Tel: 281-894-5983
Indianapolis
Noblesville, IN
Tel: 317-773-8323
Fax: 317-773-5453
Los Angeles
Mission Viejo, CA
Tel: 949-462-9523
Fax: 949-462-9608
New York, NY
Tel: 631-435-6000
San Jose, CA
Tel: 408-735-9110
Canada - Toronto
Tel: 905-673-0699
Fax: 905-673-6509
China - Dongguan
Tel: 86-769-8702-9880
China - Hangzhou
Tel: 86-571-8792-8115
Fax: 86-571-8792-8116
India - Pune
Tel: 91-20-3019-1500
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Tel: 81-6-6152-7160
Fax: 81-6-6152-9310
Japan - Tokyo
Tel: 81-3-6880- 3770
Fax: 81-3-6880-3771
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Tel: 82-53-744-4301
Fax: 82-53-744-4302
China - Hong Kong SAR
Tel: 852-2943-5100
Fax: 852-2401-3431
Korea - Seoul
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
China - Nanjing
Tel: 86-25-8473-2460
Fax: 86-25-8473-2470
Malaysia - Kuala Lumpur
Tel: 60-3-6201-9857
Fax: 60-3-6201-9859
China - Qingdao
Tel: 86-532-8502-7355
Fax: 86-532-8502-7205
Malaysia - Penang
Tel: 60-4-227-8870
Fax: 60-4-227-4068
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
Philippines - Manila
Tel: 63-2-634-9065
Fax: 63-2-634-9069
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
China - Shenzhen
Tel: 86-755-8864-2200
Fax: 86-755-8203-1760
Taiwan - Hsin Chu
Tel: 886-3-5778-366
Fax: 886-3-5770-955
China - Wuhan
Tel: 86-27-5980-5300
Fax: 86-27-5980-5118
Taiwan - Kaohsiung
Tel: 886-7-213-7828
China - Xian
Tel: 86-29-8833-7252
Fax: 86-29-8833-7256
Germany - Karlsruhe
Tel: 49-721-625370
Germany - Munich
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Italy - Venice
Tel: 39-049-7625286
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
Poland - Warsaw
Tel: 48-22-3325737
Spain - Madrid
Tel: 34-91-708-08-90
Fax: 34-91-708-08-91
Sweden - Stockholm
Tel: 46-8-5090-4654
UK - Wokingham
Tel: 44-118-921-5800
Fax: 44-118-921-5820
Taiwan - Taipei
Tel: 886-2-2508-8600
Fax: 886-2-2508-0102
Thailand - Bangkok
Tel: 66-2-694-1351
Fax: 66-2-694-1350
07/14/15
DS50002472A-page 42
2016 Microchip Technology Inc.