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MIC24045
Evaluation Board
User's Guide
 2017 Microchip Technology Inc.
DS50002619A
Arrow.com.
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Summary of Contents for Microchip Technology MIC24045

  • Page 1 MIC24045 Evaluation Board User’s Guide  2017 Microchip Technology Inc. DS50002619A Arrow.com. Downloaded from...
  • Page 2 GestIC is a registered trademark of Microchip Technology devices, Serial EEPROMs, microperipherals, nonvolatile memory and Germany II GmbH & Co. KG, a subsidiary of Microchip Technology analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified.
  • Page 3 For information regarding the exclusive, limited warranties applicable to Microchip products, please see Microchip’s standard terms and conditions of sale, which are printed on our sales documentation and available at www.microchip.com. Signed for and on behalf of Microchip Technology Inc. at Chandler, Arizona, USA.  2017 Microchip Technology Inc.
  • Page 4 MIC24045 Evaluation Board User’s Guide NOTES:  2017 Microchip Technology Inc. DS50002619A-page 4 Arrow.com. Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from Downloaded from Downloaded from...
  • Page 5: Table Of Contents

    1.1 Introduction ..................... 7 1.2 MIC24045 Device Short Overview ..............7 1.3 MIC24045 Evaluation Board Overview ............8 1.4 What the MIC24045 Evaluation Board User’s Guide Contains ...... 8 Chapter 2. Installation and Operation 2.1 Introduction ..................... 9 2.2 Getting Started ....................9 2.3 On-Board Load Transient Generator ............
  • Page 6 MIC24045 Evaluation Board User’s Guide NOTES:  2017 Microchip Technology Inc. DS50002619A-page 2 Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from...
  • Page 7 • Customer Support • Document Revision History DOCUMENT LAYOUT This document describes how to use the MIC24045 Evaluation Board as a development tool. The manual layout is as follows: • – Important information about the MIC24045 Chapter 1. “Product Overview”...
  • Page 8 MIC24045 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... Initial caps...
  • Page 9 Preface RECOMMENDED READING This user’s guide describes how to use the MIC24045 Evaluation Board. Another useful document is listed below. The following Microchip document is available and recommended as a supplemental reference resource: • MIC24045 Data Sheet – “I C Programmable, 4.5V-19V Input, 5A Step-Down Converter”...
  • Page 10 MIC24045 Evaluation Board User’s Guide NOTES:  2017 Microchip Technology Inc. DS50002619A-page 6 Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from...
  • Page 11: Chapter 1. Product Overview

    C. Programmable cycle-by-cycle current limit value helps optimize the size of the inductor in each particular application. The MIC24045 is available in thermally-efficient, space-saving 20-pin 3 mm x 3 mm FQFN package, with an operating junction temperature range from –40°C to +125°C.
  • Page 12: Mic24045 Evaluation Board Overview

    I C Monitor, which allows the user to control the output voltage, switching frequency, current limit and soft start of the MIC24045. WHAT THE MIC24045 EVALUATION BOARD USER’S GUIDE CONTAINS The MIC24045 Evaluation Board includes: •...
  • Page 13: Chapter 2. Installation And Operation

    BOARD USER’S GUIDE Chapter 2. Installation and Operation INTRODUCTION The MIC24045 Evaluation Board requires only a single power supply with at least 5A current capability. The MIC24045 has an internal V LDO, so no external linear regulator is required to power the internal biasing of the device.
  • Page 14: On-Board Load Transient Generator

    ON-BOARD LOAD TRANSIENT GENERATOR The MIC24045 Evaluation Board provides circuitry to enable load transient testing with fast current rise time and fast yet controlled fall time. This is done by a fast turn-on, controlled turn-off MOSFET switch (Q1). Resistive loads (R8 to R11) can be selectively connected by means of header J10.
  • Page 15: Chapter 3. Gui Installation And Operation

    Acrobat Reader ® • Microsoft Windows 3.1.2 Required Hardware • MIC24045 Evaluation Board • USB-to-Micro-USB Cable GRAPHICAL USER INTERFACE INSTALLATION The following steps describe how to install the I C Monitor Graphical User Interface: 1. If Microsoft .NET Framework is already installed, go to Step 3.
  • Page 16 MIC24045 Evaluation Board User’s Guide 6. In the Welcome to the InstallShield Wizard for I2CMonitor window, click on the Next button to start the installation. FIGURE 3-1: Starting the I C Monitor Graphical User Interface Installation. 7. The installation path can be changed, although it is recommended to keep the default path.
  • Page 17 8. In the Ready to Install the Program window, click on the Install button and wait for the application to proceed with the installation. The progress can be observed in the “Status” bar. FIGURE 3-3: Installing the I C Monitor Graphical User Interface.  2017 Microchip Technology Inc. DS50002619A-page 13 Arrow.com. Arrow.com. Arrow.com. Arrow.com.
  • Page 18: C Monitor Graphical User Interface Uninstall

    MIC24045 Evaluation Board User’s Guide 9. Once the installation completes, leave the Launch the program box checked to automatically start the I C Monitor GUI, or deselect this check box to start the GUI at a later stage. Click Finish to end the installation.
  • Page 19: Chapter 4. Gui Description

    MIC24045 I Programmable Features MIC24045 Output Progress Bar Status Bar MIC24045 I Voltage Step Diagnostic FIGURE 4-1: C Monitor Graphical User Interface Main Window - MIC24045 View.  2017 Microchip Technology Inc. DS50002619A-page 15 Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com.
  • Page 20: The Graphical User Interface

    MIC24045 Evaluation Board User’s Guide THE GRAPHICAL USER INTERFACE The following sections describe the items in the Graphical User Interface. 4.2.1 Device Menu The device drop-down menu allows the user to select the device to be evaluated. 4.2.2 C Monitor Status and Control Bar...
  • Page 21 TABLE 4-3: Panel/Button Items Description This button controls the Enable pin of the MIC24045. The red color of this Enable button marks the Off state and green marks the On state. Auto Disable If this option is checked, the GUI automatically disables the part using the Enable when critical parameters for the MIC24045 are changed.
  • Page 22 MIC24045 Evaluation Board User’s Guide This area of the GUI allows the user to modify the device features. For the MIC24045 device, the features which can be modified trough I C are the switching frequency, the current limit, the soft-start time, the startup-delay, the output voltage and the output voltage margining.
  • Page 23 Initiates all voltage ramps. The MIC24045 Output Voltage Ramp area allows the user to ramp up or down the out- put voltage in a controlled approach, by setting the voltage steps and the settling time between ramping up/down sequences.
  • Page 24 MIC24045 Evaluation Board User’s Guide Hold interval Target Voltage step size Output Voltage Repeat time 500 mV/div GUI settings: Output Voltage: 2.010V Target Voltage: 3V Step size: 210 mV Hold interval: 20 ms Repeat interval: 30 ms 20 ms/div FIGURE 4-7: Output Voltage Ramp Up/Down.
  • Page 25: Appendix A. Schematic And Layouts

    MIC24045 EVALUATION BOARD USER’S GUIDE Appendix A. Schematic and Layouts INTRODUCTION This appendix contains the following schematics and layouts for the MIC24045 Evaluation Board: • Board – Schematic 1 • Board – Schematic 2 • Board – Top Silk • Board – Top Copper and Silk •...
  • Page 26 MIC24045 Evaluation Board User’s Guide  2017 Microchip Technology Inc. DS50002619A-page 22 Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Downloaded from...
  • Page 27 Schematic and Layouts  2017 Microchip Technology Inc. DS50002619A-page 23 Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from...
  • Page 28: Board - Top Silk

    MIC24045 Evaluation Board User’s Guide BOARD – TOP SILK  2017 Microchip Technology Inc. DS50002619A-page 24 Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com.
  • Page 29: Board - Top Copper And Silk

    Schematic and Layouts BOARD – TOP COPPER AND SILK  2017 Microchip Technology Inc. DS50002619A-page 25 Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com.
  • Page 30: Board - Mid-Layer 1

    MIC24045 Evaluation Board User’s Guide BOARD – MID-LAYER 1  2017 Microchip Technology Inc. DS50002619A-page 26 Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com.
  • Page 31 Schematic and Layouts BOARD – MID-LAYER 2  2017 Microchip Technology Inc. DS50002619A-page 27 Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com.
  • Page 32: Board - Bottom Copper

    MIC24045 Evaluation Board User’s Guide BOARD – BOTTOM COPPER  2017 Microchip Technology Inc. DS50002619A-page 28 Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com.
  • Page 33: Appendix B. Bill Of Materials (Bom)

    2.2 μF 10V 10% X7R SMD 0603 The components listed in this Bill of Materials are representative of the PCB assembly. The released Note 1: BOM used in manufacturing uses all RoHS-compliant components.  2017 Microchip Technology Inc. DS50002619A-page 29 Arrow.com. Arrow.com.
  • Page 34 MIC24045 Evaluation Board User’s Guide TABLE B-1: BILL OF MATERIALS (BOM) (CONTINUED) Qty. Reference Description Manufacturer Part Number CAP CER 0.1 μF 16V 10% X7R SMD Wurth Electronik 885012206046 0603 ® CAP CER 0.47 μF 6.3V 10% X5R SMD Murata Electronics...
  • Page 35 CON TP PIN Tin TH Harwin Plc. H2121-01 TP4, TP6, TP7, TP8 MCHP ANALOG SWITCHER Buck Microchip Technology Inc. MIC24045-2ZYFL-TR 0.64V MIC24045-2ZYFL-TR VFQFN-20 MCHP INTERFACE USB I2C UART Microchip Technology Inc. MCP2221-I/ST MCP2221-I/ST TSSOP-14 DO NOT POPULATE - MCHP ANA- Microchip Technology Inc.
  • Page 36 MIC24045 Evaluation Board User’s Guide NOTES:  2017 Microchip Technology Inc. DS50002619A-page 32 Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com.
  • Page 37: Appendix C. Mic24045 Internal Registers

    MIC24045 EVALUATION BOARD USER’S GUIDE Appendix C. MIC24045 Internal Registers REGISTERS MAPS AND I C PROGRAMMABILITY The MIC24045 internal registers are summarized in Table C-1, below. TABLE C-1: MIC24045 REGISTER MAP Register Register Type Address Name Status ThSDF ThWrnF Reserved...
  • Page 38 Reserved: Status bit. Always read as ‘1’. bit 1 Reserved: Default status at POR is ‘1’ (no faults detected). bit 0 PGS: Power-Good Status bit. PGS reflects the logic value present on pin PG. Nonlatched.  2017 Microchip Technology Inc. DS50002619A-page 34 Arrow.com. Arrow.com. Arrow.com.
  • Page 39 Reserved: Unimplemented bit. Read as ‘0’. Default Status settings at power-up can be changed at the factory. Standard selections are described in Note 1: Section 6.0 “MIC24045 Default Settings Values at Power-Up” in the data sheet. Overwriting default settings by I C has no permanent effect and values will return to factory default values upon power cycling.
  • Page 40 To change settings by I C, set EN pin low first, then write the new configuration, and finally, set EN pin high again to resume power deliver.  2017 Microchip Technology Inc. DS50002619A-page 36 Arrow.com. Arrow.com.
  • Page 41 C has no permanent effect and values will return to factory default values upon power cycling. The functionality of the MIC24045 at any output voltage selection is subject to limitations described in Section 7.0 “Application Information”, in the data sheet.
  • Page 42 Sweden - Stockholm Tel: 408-436-4270 Tel: 46-8-5090-4654 Fax: 86-29-8833-7256 Fax: 66-2-694-1350 Canada - Toronto UK - Wokingham Tel: 905-695-1980 Tel: 44-118-921-5800 Fax: 905-695-2078 Fax: 44-118-921-5820  2017 Microchip Technology Inc. DS50002619A-page 38 11/07/16 Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com.

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