Microchip Technology MCP19114 User Manual
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Microchip Technology MCP19114 User Manual

Microchip Technology MCP19114 User Manual

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MCP19114 - Flyback
Stand-Alone

Evaluation Board

User's Guide
 2014 Microchip Technology Inc.
DS50002255A

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Summary of Contents for Microchip Technology MCP19114

  • Page 1: Evaluation Board

    MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide  2014 Microchip Technology Inc. DS50002255A...
  • Page 2 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.
  • Page 3 Object of Declaration: MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide  2014 Microchip Technology Inc. DS50002255A-page 3...
  • Page 4 MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide NOTES:  2014 Microchip Technology Inc. DS50002255A-page 4...

  • Page 5: Table Of Contents

    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 ....................
  • Page 6 MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide NOTES:  2014 Microchip Technology Inc. DS50002255A-page 6...

  • Page 7: Preface

    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.

  • Page 8: Conventions Used In This Guide

    MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide CONVENTIONS USED IN THIS GUIDE This manual uses the following documentation conventions: DOCUMENTATION CONVENTIONS Description Represents Examples Arial font: ® Italic characters Referenced books MPLAB IDE User’s Guide Emphasized text ...is the only compiler...

  • Page 9: Recommended Reading

    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”...
  • Page 10 MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide NOTES:  2014 Microchip Technology Inc. DS50002255A-page 10...

  • Page 11: Chapter 1. Product Overview

    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 I C™ using the PICkit™ Serial Analyzer.

  • Page 12: What Is The Mcp19114 Flyback Stand-Alone Evaluation Board

    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.

  • Page 13: Chapter 2. Installation And Operation

    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).
  • Page 14 2.2.3 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.
  • Page 15 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.
  • Page 16 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).
  • Page 17 Wait until the program process is complete. Make and Program Device Main Project Button Programming/Verify Complete Result FIGURE 2-6: Selecting and Executing the Make and Program Device Main Project in MPLAB X IDE.  2014 Microchip Technology Inc. DS50002255A-page 17...
  • Page 18 MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide NOTES:  2014 Microchip Technology Inc. DS50002255A-page 18...

  • Page 19: Chapter 3. Graphical User Interface (Gui)

    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).

  • Page 20: Configuring 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.
  • Page 21 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.
  • Page 22 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).
  • Page 23 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 con- tains information on register address locations and content. Reads and writes are done in hexadecimal format.
  • Page 24 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.

  • Page 25: Appendix A. Schematic And Layouts

    STAND-ALONE EVALUATION BOARD USER’S GUIDE Appendix A. Schematic and Layouts 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 •...

  • Page 26: Board - Schematic

    BOARD – SCHEMATIC ICSPCLK HDR1X6-SMT 0603 SGND 3.92k 0603 DSAT_N VOUT VOUT 1206 1206 PDRV 1206 1210 1210 JUMPER JUMPER 0603 SDRV 0.1u 100V 1206 PGND PGND 2.2u 0603 PGND 3.92k 0603 PGND1 0603 1206 1206 1206 1206 DSAT_P 4.7u 3.3u 1206 0603...

  • Page 27: Board - Top Silk

    Schematic and Layouts BOARD – TOP LAYER  2014 Microchip Technology Inc. DS50002255A-page 27...

  • Page 28: Board - Top Copper And Silk

    MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide BOARD – TOP COPPER  2014 Microchip Technology Inc. DS50002255A-page 28...
  • Page 29 Schematic and Layouts BOARD – MID LAYER 1  2014 Microchip Technology Inc. DS50002255A-page 29...

  • Page 30: Board - Inner Plane 1 - Ground

    MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide BOARD – MID LAYER 2  2014 Microchip Technology Inc. DS50002255A-page 30...

  • Page 31: Board - Inner Plane 2 - Power

    Schematic and Layouts BOARD – BOTTOM COPPER  2014 Microchip Technology Inc. DS50002255A-page 31...

  • Page 32: Board - Bottom Copper

    MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide BOARD – BOTTOM LAYER  2014 Microchip Technology Inc. DS50002255A-page 32...

  • Page 33: Board - Top Copper And Silk

    TVS diode 90 VWM 146 VC SMA Uni-Dir Littelfuse SMAJ90A J3,J5 Header, 6 Pos., 2.54 mm, SMT, vert., gold Samtec, Inc. TSM-106-01-L-SV Printed Circuit Board - MCP19114 - — 04-10290 Flyback Stand-Alone Evaluation Board Q1, Q3, Q4 N-Channel MOSFET, 100V...

  • Page 34: Board - Bottom Silk

    MCP19114 - Flyback Stand-Alone Evaluation Board User’s Guide TABLE 2-1: BILL OF MATERIALS (BOM) (CONTINUED) Qty. Reference Description Manufacturer Part Number R10, R12, Res. 10 k 1/10th Watt, 1% 0603 SMD Panasonic - ECG ERJ-3EKF1002V R13, R14 Res. 1.02 k 1/10th Watt, 1% 0603 SMD Panasonic - ECG ERJ-3EKF1021V Res.
  • Page 35 Bill of Materials (BOM) NOTES:  2014 Microchip Technology Inc. DS50002255A-page 35...

  • Page 36: Worldwide Sales And Service

    Tel: 86-29-8833-7252 Tel: 631-435-6000 Fax: 86-29-8833-7256 San Jose, CA China - Xiamen Tel: 408-735-9110 Tel: 86-592-2388138 Canada - Toronto Fax: 86-592-2388130 Tel: 905-673-0699 China - Zhuhai Fax: 905-673-6509 Tel: 86-756-3210040 03/21/14 Fax: 86-756-3210049  2014 Microchip Technology Inc. DS50002255A-page 36...

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