MCP19114/MCP19115 User's Guide

MCP19114 - Flyback
Stand-Alone
Evaluation Board
User’s Guide
 2014 Microchip Technology Inc.
DS50002255A
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and may be superseded by updates.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
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Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
FlashFlex, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro,
PICSTART, PIC32 logo, rfPIC, SST, SST Logo, SuperFlash
and UNI/O are registered trademarks of Microchip Technology
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MTP, SEEVAL and The Embedded Control Solutions
Company are registered trademarks of Microchip Technology
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Analog-for-the-Digital Age, Application Maestro, BodyCom,
chipKIT, chipKIT logo, CodeGuard, dsPICDEM,
dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial
Programming, ICSP, Mindi, MiWi, MPASM, MPF, MPLAB
Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code
Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit,
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Total Endurance, TSHARC, UniWinDriver, WiperLock, ZENA
and Z-Scale are trademarks of Microchip Technology
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SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
GestIC and ULPP are registered trademarks of Microchip
Technology Germany II GmbH & Co. KG, a subsidiary of
Microchip Technology Inc., in other countries.
All other trademarks mentioned herein are property of their
respective companies.
© 2014, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
ISBN: 978-1-63276-035-7
QUALITY MANAGEMENT SYSTEM
CERTIFIED BY DNV
== ISO/TS 16949 ==
DS50002255A-page 2
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.
 2014 Microchip Technology Inc.
Object of Declaration: MCP19114 - Flyback Stand-Alone Evaluation Board
User’s Guide
 2014 Microchip Technology Inc.
DS50002255A-page 3
MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide
NOTES:
DS50002255A-page 4
 2014 Microchip Technology Inc.
MCP19114 - 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 MCP19114 Short Overview .......................................................................... 11
1.3 What is the MCP19114 Flyback Stand-Alone Evaluation Board? ................ 12
1.4 MCP19114 Flyback Stand-Alone Evaluation Board Kit Contents ................ 12
Chapter 2. Installation and Operation
2.1 Introduction ................................................................................................... 13
2.2 Getting Started ............................................................................................. 13
Chapter 3. Graphical User Interface (GUI)
3.1 Introduction ................................................................................................... 19
3.2 Configuring Parameters ............................................................................... 20
Appendix A. Schematic and Layouts
A.1 Introduction .................................................................................................. 25
A.2 Board – Schematic ....................................................................................... 26
A.3 Board – Top Silk .......................................................................................... 27
A.4 Board – Top Copper and Silk ....................................................................... 28
A.5 Board – Top Copper .................................................................................... 29
A.6 Board – Inner Plane 1 – GROUND .............................................................. 30
A.7 Board – Inner Plane 2 – POWER ................................................................ 31
A.8 Board – Bottom Copper ............................................................................... 32
A.9 Board – Top Copper and Silk ....................................................................... 33
A.10 Board – Bottom Silk ................................................................................... 34
Appendix B. Bill of Materials (BOM)
Worldwide Sales and Service .................................................................................... 38
 2014 Microchip Technology Inc.
DS50002255A-page 5
MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide
NOTES:
DS50002255A-page 6
 2014 Microchip Technology Inc.
MCP19114 - 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
MCP19114 - 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 MCP19114 - 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 MCP19114 Flyback Stand-Alone Evaluation Board.
• Chapter 2. “Installation and Operation” – Includes instructions on how to get
started with the MCP19114 - Flyback Stand-Alone Evaluation Board.
• Chapter 3. “Graphical User Interface (GUI)” – Includes instructions on the
MCP19114-Flyback Standalone GUI.
• Appendix A. “Schematic and Layouts” – Shows the schematic and layout
diagrams for the MCP19114 - Flyback Stand-Alone Evaluation Board.
• Appendix B. “Bill of Materials (BOM)” – Lists the parts used to build the
MCP19114 - Flyback Stand-Alone Evaluation Board.
 2014 Microchip Technology Inc.
DS50002255A-page 7
MCP19114 - 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
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
DS50002255A-page 8
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)
{ ...
}
 2014 Microchip Technology Inc.
Preface
RECOMMENDED READING
This user's guide describes how to use MCP19114 - Flyback Stand-Alone Evaluation
Board. Other useful documents are listed below. The following Microchip documents
are available and recommended as supplemental reference resources.
• MCP19114/5 Data Sheet – “Digitally Enhanced Power Analog Synchronous
Low-Side PWM Controller” (DS20005281)
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 2014)
• Initial Release of this Document.
 2014 Microchip Technology Inc.
DS50002255A-page 9
MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide
NOTES:
DS50002255A-page 10
 2014 Microchip Technology Inc.
MCP19114 - FLYBACK
STAND-ALONE EVALUATION
BOARD USER’S GUIDE
Chapter 1. Product Overview
1.1
INTRODUCTION
This chapter provides an overview of the MCP19114 - Flyback Stand-Alone Evaluation
Board and covers the following topics:
• MCP19114 Short Overview
• What is the MCP19114 - Flyback Stand-Alone Evaluation Board?
• MCP19114 - Flyback Stand-Alone Evaluation Board Kit Contents
1.2
MCP19114 SHORT OVERVIEW
The MCP19114 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 MCP19114 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, deadtimes,
slope compensation and fault handling procedures.
The MCP19114 has two internal 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
4k word non-volatile memory, all in a space-saving 24-pin 4mm x 4mm QFN package.
Finally, to support traditional MOSFETs, pin 18 (VDR) is used to provide input power to
the two low-side synchronous gate drivers. The evaluation board is populated with the
Microchip TC1240A voltage doubler. Resistor population provides the option of
powering VDR with 10V via the TC1240A 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 MCP19114. 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
MCP19114. The GUI 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 MCP19114
device. It is the user's responsibility to understand the system effects of the parameters
they enter.
 2014 Microchip Technology Inc.
DS50002255A-page 11
MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide
VIN
5V
EN
MCLR
DIMI
CCD
Temp SNS
2
I/O
I/O
VDD
MCP19114
4x4 24LD QFN
2
VDD
VIN
VDD
PDRV
IP
DESAT_N
SDRV
DESAT_P
ISP
ISN
VDD
VDD
IFB
ICOMP
BIN
2
VS
I/O
I/O
AGND
FIGURE 1-1:
1.3
VDR
PGND
I/O
Typical MCP19114 Flyback Application – Two String LED Driver.
WHAT IS THE MCP19114 - FLYBACK STAND-ALONE EVALUATION BOARD?
The MCP19114 - Flyback Stand-Alone Evaluation Board is intended to demonstrate
how the MCP19114 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 MCP19114 comes preprogrammed with firmware designed to operate with the
GUI interface. MPLABX IDE software can be used to download user defined firmware,
and 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 MCP19114 - 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 MCP19114 operation as well as power train efficiency and
noise minimization. MPLABX IDE, MCP19114 - Flyback Stand-Alone GUI and
MCP19114 - Flyback Stand-Alone Firmware are available for download from
Microchip’s web site. See Chapter 3. “Graphical User Interface (GUI)” for details.
1.4
MCP19114 - FLYBACK STAND-ALONE EVALUATION BOARD KIT
CONTENTS
The MCP19114 - Flyback Stand-Alone Evaluation Board includes the following items:
• MCP19114 - Flyback Stand-Alone Evaluation Board (ADM00578)
• Important Information Sheet
DS50002255A-page 12
 2014 Microchip Technology Inc.
MCP19114 - FLYBACK
STAND-ALONE EVALUATION
BOARD USER’S GUIDE
Chapter 2. Installation and Operation
2.1
INTRODUCTION
2.1.1
MCP19114 - Flyback Stand-Alone Evaluation Board Features
The MCP19114 is a digitally-enhanced, power analog, synchronous low-side
pulse-width modulation (PWM) controller. The graphical user interface was developed
to assist users in easily configuring the MCP19114 and evaluating it in their target
application.
The MCP19114 - 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 MCP19114 - Flyback Stand-Alone Evaluation Board is fully assembled, programmed and tested to evaluate and demonstrate the MCP19114 operating performance. Users will need to download and install the MCP19114 - Flyback Stand-Alone
GUI from the Microchip website and become familiar with its operation before powering
the MCP19114 - Flyback Stand-Alone Evaluation Board.
2.2
GETTING STARTED
2.2.1
Configuration Requirements
To power up and run the MCP19114 - Flyback Stand-Alone Evaluation Board, the
following is required:
• MCP19114 - Flyback Stand-Alone GUI
• MCP19114 - Flyback Stand-Alone Evaluation Board
• PICkit Serial Analyzer
Note:
2.2.2
The factory-loaded firmware REQUIRES the use of the provided GUI to
function. Without the GUI, the evaluation board will not operate.
Installing the MCP19114 - Flyback Stand-Alone GUI
Follow the steps to download and install the MCP19114 - Flyback Stand-Alone GUI:
1. Download the MCP19114 - Flyback Stand-Alone 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 2-1). Once the installation
completes, the GUI window will open (see Figure 3-1 in Chapter 2. “Installation
and Operation”).
 2014 Microchip Technology Inc.
DS50002255A-page 13
MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide
FIGURE 2-1:
2.2.3
MCP19114 - Flyback Stand-Alone GUI Installation Window.
Power Input and Output Connection
The MCP19114 comes programmed with generic firmware 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:
2.2.3.1
If the default firmware is modified, the GUI may no longer be compatible
with the MCP19114 - Flyback Stand-Alone Evaluation Board.
APPLYING POWER
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 2-2:
Applying Power to the Board.
CAUTION
The 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.
DS50002255A-page 14
 2014 Microchip Technology Inc.
Installation and Operation
2.2.4
Preprogrammed MCP19114 - Flyback Stand-Alone Evaluation
Board
The MCP19114 - 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 1.5 or later)
MPLAB® XC8 C Compiler (v1.3 or later)
MCP19114 - Flyback Stand-Alone Firmware
MCP19114 - Flyback Stand-Alone Evaluation Board
PICkit™ 3 In-Circuit Debugger/Programmer
Follow the steps to install all necessary software and start reprogramming the
MCP19114 device:
1. If MPLAB X is already installed, go to Step 2. If not, download MPLAB X from:
www.microchip.com/mplabx, and follow the MPLAB X installation instructions.
2. If an XC8 compatible C-compiler, or an equivalent, is already installed in
MPLAB X, go to Step 3. If not, you can download a free version of Microchip's
XC8 from: www.microchip.com/mplabxc. The XC8 user guide, installation
instructions, and download links are available on this page.
3. Download the MCP19114 - Flyback Stand-Alone Firmware (*.zip) from
www.microchip.com/mcp19114 under "Documentation & Software/Software".
4. Unzip the MCP19114 - Flyback Stand-Alone Firmware archive. Place the
MCP19114 project folder in the desired folder location.
Note:
When installed, MPLAB X IDE automatically creates a project folder. In
Windows®, this folder can typically be found under
drive\Users\user_name\MPLABXProjects.
5. Power up the MCP19114 - Flyback Stand-Alone Evaluation Board.
6. Connect the PICkit 3 In-Circuit Debugger to the MCP19114 - 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).
 2014 Microchip Technology Inc.
DS50002255A-page 15
MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide
FIGURE 2-3:
PICkit 3 In-Circuit Debugger/Programmer Connected to the
MCP19114 - Flyback Stand-Alone Evaluation Board.
7. Open MPLAB X IDE to load MCP19114 - Flyback Stand-Alone Firmware. From
the File menu select Open Project (Figure 2-4).
FIGURE 2-4:
DS50002255A-page 16
Opening Project in MPLAB X IDE.
 2014 Microchip Technology Inc.
Installation and Operation
8. Browse for the location of the extracted firmware. Select the
MCP19114_Stand_Alone from the list, then check the Open as Main Project
option. Press the Open Project button to complete loading the file.
FIGURE 2-5:
Loading Firmware into MPLAB X IDE.
9. Once the project is opened, click Make and Program Device Main Project
button on the tool bar to program the device. Wait until the program process is
complete.
Make and Program Device
Main Project Button
FIGURE 2-6:
Programming/Verify Complete Result
Selecting and Executing the Make and Program Device Main Project in MPLAB X IDE.
 2014 Microchip Technology Inc.
DS50002255A-page 17
MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide
NOTES:
DS50002255A-page 18
 2014 Microchip Technology Inc.
MCP19114 - FLYBACK
STAND-ALONE EVALUATION
BOARD USER’S GUIDE
Chapter 3. Graphical User Interface (GUI)
3.1
INTRODUCTION
The MCP19114 - Flyback Stand-Alone GUI requires a Windows® XP/7/8 operating
system, a USB port and a minimum screen resolution of 1024 x 768. To run the
software, follow the steps described in this section.
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 via USB port and then connect the
analyzer to the Control Board via the 6-pin serial connector J5 (Figure 3-1).
FIGURE 3-1:
PICkit Serial Analyzer Connection to the Board.
3. To start the GUI, select Start > All Programs > Microchip Technology
Inc. > MCP19114 Flyback Standalone GUI. The interface detects the
MCP19114 device automatically and is ready for use (see Figure 3-2).
 2014 Microchip Technology Inc.
DS50002255A-page 19
MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide
System
Parameters
Register
Adjust Online
Control
Buttons
Operating
Status Box
FIGURE 3-2:
3.2
MCP19114 - Flyback Stand-Alone GUI - Initial Screen.
CONFIGURING PARAMETERS
As depicted in Figure 3-2, the MCP19114 - Flyback Stand-Alone GUI is divided into four
parts:
•
•
•
•
System Parameters
Register Online Adjust
Control Buttons
Operating Status Box
3.2.1
System Parameters
3.2.1.1
DRIVERS ENABLE/DISABLE
The Drivers Enable/Disable section defaults to OFF when starting the MCP19114 Flyback Stand-Alone GUI. When this is set to ON, all other adjustable parameters
become active for adjustment. When OFF is selected, the GUI will turn off the drivers
and make all of the parameters unavailable for change so they cannot be altered.
3.2.1.2
PARAMETERS
This section controls the Switching Frequency, Maximum Duty Cycle, Output Current
and Current Sense Resistor parameters. 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%.
DS50002255A-page 20
 2014 Microchip Technology Inc.
Graphical User Interface (GUI)
CAUTION
Increasing switching frequency results in increased switching losses in the MOSFETs.
It is the user's responsibility to ensure MOSFETs are operated within their safe
operating range.
Users can adjust the Output Current over a range of 0 to 500 mA. The Current Sense
Resistor (R6) value on the MCP19114 - 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:
3.2.1.3
Attempting to write a value larger than 0xFF to VREFCON is prohibited by
the GUI.
OPERATING MODE
This section controls whether the Flyback converter is operated in Fixed-Frequency,
Quasi-Resonant, Synchronous or Asynchronous Modes. When running in Fixed
Frequency mode, the switching frequency parameters are adjustable. The third button
is for Synchronous Operation. When the EN ON button is selected on the GUI, the
Synchronous Operation box is automatically selected by default, putting the evaluation
board in Synchronous mode. If the Synchronous Operation box is unchecked, the
evaluation board is set to Asynchronous operation which disables the secondary driver
(SDRV).
FIGURE 3-3:
3.2.1.4
Operating Mode Options.
PROTECTION
The Protection control allows the user to set levels for the three adjustable protection
features. Input Voltage Under Voltage Lockout (VIUVLO), Input Voltage Overvoltage
Lockout (VINOVLO) and Output Voltage Overvoltage (OV) can all be configured in this
section of the GUI.
FIGURE 3-4:
 2014 Microchip Technology Inc.
Protection Options.
DS50002255A-page 21
MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide
The VINUVLO and VINOVLO Protection parameters are configurable per their
specified ranges. The specified range for VINUVLO is 4V to 20V. The default VINUVLO
setting in the GUI is 8V. The specified VINOVLO range is 9V to 24V. The default
VINOVLO setting in the GUI is 18V. The Output OV has a configurable range between
0V and 60V. The default OV setting in the GUI is 40V.
The LED (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
TEST PIN
This 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 3-5 for the list of signals.
FIGURE 3-5:
3.2.1.6
Test Pin Options.
SWITCHES ENABLE/DISABLE
There are two general purpose MOSFET low-side series switches located on
MCP19114 - Flyback Stand-Alone Evaluation Board (LSW1 and LSW2). The control
boxes in the Switches Enable/Disable section of the GUI allow the user to turn these
switches ON (checked) and OFF (unchecked).
DS50002255A-page 22
 2014 Microchip Technology Inc.
Graphical User Interface (GUI)
3.2.1.7
ADVANCED REGISTER UPDATE
This section of GUI gives the user more options to configure and operate the
MCP19114 - Flyback Stand-Alone Evaluation Board. The adjustable parameters
include Leading Edge Blanking (LEB), Primary Driver (PDRV) Deadtime, Secondary
Driver (SDRV) Deadtime, Input Current Offset and 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
MCP19114/5 Data Sheet – “Digitally Enhanced Power Analog Synchronous Low-Side
PWM Controller” (DS20005281).
Leading
Edge
Blanking
Secondary
Driver Deadtime
Slope
Compensation
Primary Driver
Deadtime
Input Current
Offset
FIGURE 3-6:
3.2.2
Special
Function
Registers
Update Section
Advanced Register Update Options.
Register Online Adjust
The Register Online Adjust section of the GUI allows the user to have direct control of
register values at any time when operating the MCP19114. 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 3-7:
 2014 Microchip Technology Inc.
Register Online Adjust Options.
DS50002255A-page 23
MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide
3.2.3
Control Buttons
The two buttons on the left are user selectable self-test options. The Initialize PICkit
Serial button checks communication between your computer and PICkit Serial
Analyzer. The Check for Evaluation Board can be selected by the user to manually
ask software to detect the evaluation board.
The Update button will apply the configuration settings made in Operating Mode,
Parameters, Protection, Switches Enable/Disable, Advanced Register Update and will
turn on the output drivers. It will not update the Register Online Adjust section.
The Turn Off Drivers button is a Master Stop that shuts off the output drivers. Pressing
this button will disable both Primary and Secondary drivers.
FIGURE 3-8:
3.2.4
Control Buttons.
Operating Status Box
This box provides messages to the user and operating status. Examples of status messages are shown in Figure 3-9.
FIGURE 3-9:
DS50002255A-page 24
Operating Status Box.
 2014 Microchip Technology Inc.
MCP19114 - 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 MCP19114 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
 2014 Microchip Technology Inc.
DS50002255A-page 25
BOARD – SCHEMATIC
VDD
J5
10k
1
2
3
4
5
6
1
2
3
4
5
6
R23
SDA
ICSPCLK
VDD
HDR1X6-SMT
10
SGND
R1
0603
3.92k
3
R16
0603
VIN
Q1
C21
0603
0.1u
50V
4
5
ICSPCLK
6
ICSPDAT
C16
0603
4.7u
16V
2
VDD
TEST_EN
8
SDA
24
VREF2
20
VIN
DESAT_N
GPA0/AN0/ALT_ICSPDAT/TEST_OUT
SDRV
GPA1/AN1/CLKPIN/ALT_ICSPCLK
DESAT_P/ISOUT
GPA2/AN2/T0CKI/ALT_ICSPCLK
ISP
GPA3/AN3
ISN
GPA7/SCLK/ICSPCLK
VS
GPA6/CCD/ICSPDAT
IFB
GPA5/MCLR/TEST_EN
GPB1/AN4/VREF2
PGND
PGND
9
16
10
11
12
21
22
SGND
DSAT_N
PGND
ISP
R8
0603
DNP
ISN
VS
AGND
PGND
EP
ICOMP
ISN
ISN
0
R6
0612
200m
C14
0603
DNP
ISP
R15
0603
DSAT_P
ISP
0
PGND
IFB
VS
TEST
TEST_OUT
23
C17
0603
220 p
C18
0603
1n
R9
0603
4k
VS
VS
SDRV
C19
0603
10n
SGND PGND SGND
R19
10
0603
R18
0603
475
D2
0603
R11
0603
1.02 k
SDRV
LSW1
R12
0603
10k
DSAT_P
LSW2
LSW1
Q3
SW1
SGND
LSW2
4
Q4
SW2
DSAT_P
R13
0603
10k
DSAT_N
1
2
NT1
SGND
SGND
SGND
DSAT_N
4
HDR1X6-SMT
SGND
TP1
R7
0603
100k
SDRV
DSAT_P
0
R5
0603
PGND
TEST_EN
ICSPDAT
ICSPCLK
PGND
13
PGND
R2
0603
3.92k
R17
0603
D1A
C11
1206
2.2u
50V
ICOMP
GPB0/SDA
MCP19114_QFN24
PGND
17
C10
1206
DNP
C9
1206
DNP
C2
1206
DNP
VDD
PGND
5
1
R22
10
0603
7
IP
5
PGND
R14
0603
10k
4
SW1
PDRV
VDR
C8
1206
3.3u
50V
D3
C6
1206
2.2u
50V
4
1
2
3
1
2
3
4
5
6
C7
1206
4.7u
50V
R4
0612
50m
1
2
3
 2014 Microchip Technology Inc.
1
2
3
4
5
6
0603
0
SGND
A
J3
5
C20
0603
1u
25V
VDD VDD
R10
0603
10k
R21
3
GPA2
C13
0603
DNP
25
SGND
1
0603
VDD
15
GND VOUT
2
PGND
14
SHDN VIN
1
TEST_OUT
SW2
6
C+
TC1240A
U1
18
4
SDRV
PGND
PGND
SW1
SW1
K
2
VDD
VDR
C15
0603
4.7u
16V
3
4
C-
PGND
19
C12
0603
1u
25V
U2
8
0
PGND
JUMPER
VOUT
C1
1206
DNP
Q2
1
2
3
PGND1
3
JUMPER
R3
0603
IP
PGND
PGND
2
5
PDRV
5
5
C5
1210
10u
50V
C4
1210
10u
50V
C3
1206
1u
100V
7
11
VOUT
1
2
3
VIN
DSAT_N
0
D1B
SW2
PGND
SW2
MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide
DS50002255A-page 26
A.2
Schematic and Layouts
A.3
BOARD – TOP LAYER
 2014 Microchip Technology Inc.
DS50002255A-page 27
MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide
A.4
BOARD – TOP COPPER
DS50002255A-page 28
 2014 Microchip Technology Inc.
Schematic and Layouts
A.5
BOARD – MID LAYER 1
 2014 Microchip Technology Inc.
DS50002255A-page 29
MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide
A.6
BOARD – MID LAYER 2
DS50002255A-page 30
 2014 Microchip Technology Inc.
Schematic and Layouts
A.7
BOARD – BOTTOM COPPER
 2014 Microchip Technology Inc.
DS50002255A-page 31
MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide
A.8
BOARD – BOTTOM LAYER
DS50002255A-page 32
 2014 Microchip Technology Inc.
MCP19114 - 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
4-40 screw
Machine screw 4-40 1/4
B&F™ Fasteners Supply PMSSS 440 0025 PH
4
4-40
standoff 1/4
Hex standoff 4-40 aluminum1/4
Keystone Electronics
2201
4
C1, C2,
C9, C10
DO NOT POPULATE
—
—
1
C3
Cap. ceramic 1 µF, 100V, X7R, Auto 1206 TDK Corporation
CGA5L2X7R2A105M/SOFT
2
C4, C5
Cap. ceramic 10 µF, 50V, X7R, Auto 1210 Taiyo Yuden Co., Ltd.
UMK325AB7106MM-T
2
C6, C11
Cap. ceramic2.2 µF,50V,X7R,Auto1206 TDK Corporation
CGA5L3X7R1H225K
1
C7
Cap.ceramic4.7 µF,50V,X7R,Auto1206 TDK Corporation
C3216X7R1H475K160AC
1
C8
Cap.ceramic3.3 µF,50V,X7R,Auto1206 TDK Corporation
C3216X7R1H335K160AC
2
C12, C20
Cap. ceramic 1 µF, 25V, X7R, Auto 0603 TDK Corporation
CGA3E1X7R1E105K
2
C13, C14
DO NOT POPULATE
—
2
C15, C16
Cap. ceramic4.7 µF,16V,X5R,Auto0603 TDK Corporation
1
C17
Cap. ceramic 220 pF, 50V, COG 0603
Murata Electronics®
GCM1885C1H221JA16D
1
C18
Cap. ceramic 1 nF, 50V, COG 0603
Murata Electronics®
GCM1885C1H102JA16D
1
C19
Cap. ceramic 10 nF 50V 10% X7R 0603 TDK Corporation
—
C1608X5R1C475K
C1608X7R1H103K080AA
1
C21
Cap.ceramic0.1 µF,50V,X7R,Auto0603 TDK Corporation
CGA3E2X7R1H104K
1
D1A, D1B
Diode SW DBL 200V 225 mA SOT143B NXP Semiconductor
BAV23, 215"
1
D2
LED, super red, clear 0603
1
D3
TVS diode 90 VWM 146 VC SMA Uni-Dir Littelfuse®
SMAJ90A
2
J3,J5
Header, 6 Pos., 2.54 mm, SMT, vert., gold Samtec, Inc.
TSM-106-01-L-SV
1
PCB
Printed Circuit Board - MCP19114 —
Flyback Stand-Alone Evaluation Board
04-10290
3
Q1, Q3, Q4
N-Channel MOSFET, 100V
Vishay
Intertechnology, Inc.
SIS890DN-T1-GE3
1
Q2
MOSFET N-Ch. 200V 15.2A
8TSDSON
Infineon
Technologies AG
BSZ900N20NS3 G
2
R1, R2
Res. 3.92 k 1/10th Watt, 1% 0603
SMD
Panasonic® - ECG
ERJ-3EKF3921V
6
R3, R5, R15, Res. 0.0 1/10W 0603 SMD
R16, R17,
R21
Panasonic - ECG
ERJ-3GEY0R00V
Lite-On® Technology
Corporation
LTST-C190KRKT
1
R4
Res. 50 m 1 Watt, 1% 0612 SMD
Susumu Co., LTD.
PRL1632-R050-F-T1
1
R6
Res. 200 m 1 Watt, 1% 0612 SMD
Rohm Semiconductor
LTR18EZPFLR200
1
R7
Res. 100 k 1/10th Watt, 1% 0603 SMD Panasonic - ECG
ERJ-3EKF1003V
1
R8
DO NOT POPULATE
—
1
R9
Note 1:
—
Res. 4.02 k 1/10th Watt, 1% 0603 SMD Panasonic - ECG
ERJ-3EKF4021V
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.
 2014 Microchip Technology Inc.
DS50002255A-page 33
MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide
TABLE 2-1:
Qty.
BILL OF MATERIALS (BOM) (CONTINUED)
Reference
Description
Manufacturer
4
R10, R12,
R13, R14
1
R11
Res. 1.02 k 1/10th Watt, 1% 0603 SMD Panasonic - ECG
ERJ-3EKF1021V
1
R18
Res. 475 1/10th Watt, 1% 0603 SMD Panasonic - ECG
ERJ-3EKF4750V
1
R19
Res. 10.0 1/10W 1% 0603 SMD
Panasonic - ECG
ERJ-3EKF10R0V
1
R22
DO NOT POPULATE
—
—
1
R23
Res. 10 k1/10th Watt, 1% 0603 SMD Panasonic - ECG
1
T1
Uni-Cuk Transformer 1:2
Wurth® Group
750341878
1
U1
Digitally Enhanced PWM Power
Analog Controller
Microchip
Technology Inc.
MCP19114-E/MJ
1
U2
Charge Pump, Doubler
Microchip
Technology Inc.
TC1240A-E/CH
6
VIN, PGND, Test point PC compact SMT
PGND1,
VOUT,
LSW1, LSW2
Keystone
Electronics Corp.
5016
Note 1:
Res. 10 k 1/10th Watt, 1% 0603 SMD Panasonic - ECG
Part Number
ERJ-3EKF1002V
ERJ-3EKF1002V
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.
DS50002255A-page 34
 2014 Microchip Technology Inc.
Bill of Materials (BOM)
NOTES:
 2014 Microchip Technology Inc.
DS50002255A-page 35
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Technical Support:
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Fax: 91-80-3090-4123
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Tel: 43-7242-2244-39
Fax: 43-7242-2244-393
Denmark - Copenhagen
Tel: 45-4450-2828
Fax: 45-4485-2829
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Tel: 61-2-9868-6733
Fax: 61-2-9868-6755
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Tel: 678-957-9614
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Tel: 774-760-0087
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Tel: 630-285-0071
Fax: 630-285-0075
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Tel: 408-735-9110
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Tel: 905-673-0699
Fax: 905-673-6509
DS50002255A-page 36
China - Chongqing
Tel: 86-23-8980-9588
Fax: 86-23-8980-9500
China - Hangzhou
Tel: 86-571-8792-8115
Fax: 86-571-8792-8116
China - Hong Kong SAR
Tel: 852-2401-1200
Fax: 852-2401-3431
China - Nanjing
Tel: 86-25-8473-2460
Fax: 86-25-8473-2470
China - Qingdao
Tel: 86-532-8502-7355
Fax: 86-532-8502-7205
China - Shanghai
Tel: 86-21-5407-5533
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Tel: 86-755-8864-2200
Fax: 86-755-8203-1760
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Tel: 86-27-5980-5300
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Tel: 81-3-6880- 3770
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Tel: 82-53-744-4301
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Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
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Tel: 33-1-69-53-63-20
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Tel: 49-2129-3766400
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Tel: 49-89-627-144-0
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Tel: 39-0331-742611
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Tel: 39-049-7625286
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Fax: 31-416-690340
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Tel: 60-4-227-8870
Fax: 60-4-227-4068
Poland - Warsaw
Tel: 48-22-3325737
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Tel: 63-2-634-9065
Fax: 63-2-634-9069
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Tel: 65-6334-8870
Fax: 65-6334-8850
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Tel: 886-3-5778-366
Fax: 886-3-5770-955
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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
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Tel: 886-7-213-7830
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Tel: 886-2-2508-8600
Fax: 886-2-2508-0102
Thailand - Bangkok
Tel: 66-2-694-1351
Fax: 66-2-694-1350
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Tel: 86-592-2388138
Fax: 86-592-2388130
China - Zhuhai
Tel: 86-756-3210040
Fax: 86-756-3210049
03/21/14
 2014 Microchip Technology Inc.