Microchip Technology ADM00612 User Manual
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Microchip Technology ADM00612 User Manual

Mcp1643 rgb led driver demonstration board
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Summary of Contents for Microchip Technology ADM00612

  • Page 1 Chipsmall Limited consists of a professional team with an average of over 10 year of expertise in the distribution of electronic components. Based in Hongkong, we have already established firm and mutual-benefit business relationships with customers from,Europe,America and south Asia,supplying obsolete and hard-to-find components to meet their specific needs.
  • Page 2 MCP1643 RGB LED Driver Demonstration Board User’s Guide  2016 Microchip Technology Inc. DS50002437A...
  • Page 3 WiperLock, Wireless DNA, and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. Silicon Storage Technology is a registered trademark of Microchip Technology Inc. in other countries.
  • Page 4 Object of Declaration: MCP1643 RGB LED Driver Demonstration Board  2016 Microchip Technology Inc. DS50002437A-page 3...
  • Page 5 MCP1643 RGB LED Driver Demonstration Board User’s Guide NOTES:  2016 Microchip Technology Inc. DS50002437A-page 4...

  • Page 6: Table Of Contents

    A.6 Board – Bottom Copper ................23 A.7 Board – Bottom Silk and Copper ..............23 A.8 Board – Bottom Silk ..................24 Appendix B. Bill of Materials (BOM)................25 Worldwide Sales and Service ..................26  2016 Microchip Technology Inc. DS50002437A-page 5...
  • Page 7 MCP1643 RGB LED Driver Demonstration Board User’s Guide NOTES:  2016 Microchip Technology Inc. DS50002437A-page 6...

  • Page 8: Preface

    – Shows the schematic and layout diagrams for the MCP1643 RGB LED Driver Demonstration Board. Appendix B. “Bill of Materials (BOM)” • – Lists the parts used to build the MCP1643 RGB LED Driver Demonstration Board board.  2016 Microchip Technology Inc. DS50002437A-page 7...

  • Page 9: Conventions Used In This Guide

    Curly brackets and pipe Choice of mutually exclusive character: { | } arguments; an OR selection Ellipses... Replaces repeated text var_name [, var_name...] void main (void) Represents code supplied by user { ...  2016 Microchip Technology Inc. DS50002437A-page 8...

  • Page 10: Warranty Registration

    MPLAB REAL ICE in-circuit emulator, MPLAB ICD 3 in-circuit debugger and MPLAB PM3 device programmers. Also included ® are nonproduction development programmers such as PICSTART Plus and PICkit 2 and 3.  2016 Microchip Technology Inc. DS50002437A-page 9...

  • Page 11: Customer Support

    Technical support is available through the web site at: http://www.microchip.com/support. REVISION HISTORY Revision A (January 2016) • Original release of this document.  2016 Microchip Technology Inc. DS50002437A-page 10...

  • Page 12: Chapter 1. Product Overview

    • Pulse-Width Modulation mode operation (1 MHz) • Internal synchronous rectifier • Internal compensation • Inrush current limiting • Internal soft start (240 μs typical) • Shutdown (EN=GND): - True load disconnect - Dimming control by variable duty cycle  2016 Microchip Technology Inc. DS50002437A-page 11...

  • Page 13: Mcp1643 Rgb Led Driver Demonstration Board Overview

    MCP1643 RGB LED DRIVER DEMONSTRATION BOARD OVERVIEW The MCP1643 RGB LED Driver Demonstration Board is used to demonstrate Microchip Technology’s MCP1643 device in a boost converter application supplied by one AA battery, or from an external voltage source, which drives each color of the RGB ®...

  • Page 14: Mcp1643 Rgb Led Driver Demonstration Board Features

    WHAT THE MCP1643 RGB LED DRIVER DEMONSTRATION BOARD KIT INCLUDES The MCP1643 RGB LED Driver Demonstration Board Kit includes the following items: • MCP1643 RGB LED Driver Demonstration Board (ADM00612) • Important Information Sheet  2016 Microchip Technology Inc. DS50002437A-page 13...
  • Page 15 MCP1643 RGB LED Driver Demonstration Board User’s Guide NOTES:  2016 Microchip Technology Inc. DS50002437A-page 14...

  • Page 16: Chapter 2. Installation And Operation

    The MCP1643 RGB LED Driver Demonstration Board has been developed for applications that require driving an LED from a low-voltage source. The low-voltage technology developed by Microchip Technology allows the device to start up from a low 0.65V input voltage without output overshoot. Also, the device is capable of achieving high efficiency by integrating the low resistance N-Channel boost switch and the synchronous P-Channel switch, and by using a low-voltage reference of 0.120V.

  • Page 17: Getting Started

    A 0Ω (R7) resistor is used for bench testing. By removing R7, the soldered test points can be used to create a wire loop and visualize the current through the LED by using an oscilloscope current probe.  2016 Microchip Technology Inc. DS50002437A-page 16...
  • Page 18 MCP1643 is below the LED voltage, otherwise the LED can be damaged by a current spike caused by the output capacitor discharge. The idle time can be optimized for different LED voltage differences to increase performance.  2016 Microchip Technology Inc. DS50002437A-page 17...
  • Page 19 In order to program the MCP1643 RGB LED Driver Demonstration Board, all potentiometers must be set to the middle position. This is necessary because the potentiometers use the same data lines as the PICkit 3.  2016 Microchip Technology Inc. DS50002437A-page 18...

  • Page 20: Chapter 3. Flow Charts

    Determine the intensity SW2 pressed? SW2 pressed for > 500 ms? Shutdown sequence: -RED LED on for 200ms Run Demonstration -STOP MCP1643 enable signal program -SET stop flag STOP FIGURE 3-1: Main Code Sequence.  2016 Microchip Technology Inc. DS50002437A-page 19...
  • Page 21 *The LED must be enabled first so that the MCP1643 won’t start without Enable MCP1643 to act the load connected counter > max Red as a voltage source interval EXIT Interrupt FIGURE 3-2: Interrupt Code Sequence.  2016 Microchip Technology Inc. DS50002437A-page 20...

  • Page 22: Appendix A. Schematics And Layouts

    • Board – Top Silk • Board – Top Silk and Copper • Board – Top Copper • Board – Bottom Copper • Board – Bottom Silk and Copper • Board – Bottom Silk  2016 Microchip Technology Inc. DS50002437A-page 21...

  • Page 23: Board - Schematic

    BOARD – SCHEMATIC...

  • Page 24: Board - Top Silk

    Schematics and Layouts BOARD – TOP SILK BOARD – TOP SILK AND COPPER BOARD – TOP COPPER BOARD – BOTTOM COPPER BOARD – BOTTOM SILK AND COPPER  2016 Microchip Technology Inc. DS50002437A-page 23...

  • Page 25: Board - Bottom Silk

    MCP1643 RGB LED Driver Demonstration Board User’s Guide BOARD – BOTTOM SILK  2016 Microchip Technology Inc. DS50002437A-page 24...

  • Page 26: Appendix B. Bill Of Materials (Bom)

    IC MCU 8 bit 14 KB flash 14-lead TSSOP Microchip PIC16F1455-E/ST Technology, Inc. Note 1: The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM used in manufacturing uses all RoHS-compliant components.  2016 Microchip Technology Inc. DS50002437A-page 25...

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