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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.

With the principle of “Quality Parts,Customers Priority,Honest Operation,and Considerate Service”,our business

mainly focus on the distribution of electronic components. Line cards we deal with include

Microchip,ALPS,ROHM,Xilinx,Pulse,ON,Everlight and Freescale. Main products comprise

IC,Modules,Potentiometer,IC Socket,Relay,Connector.Our parts cover such applications as commercial,industrial,

and automotives areas.

We are looking forward to setting up business relationship with you and hope to provide you with the best service

and solution. Let us make a better world for our industry!

Contact us

Tel: +86-755-8981 8866 Fax: +86-755-8427 6832

Email & Skype: [email protected] Web: www.chipsmall.com

Address: A1208, Overseas Decoration Building, #122 Zhenhua RD., Futian, Shenzhen, China

 

 

Summary of Contents for ADM00612

Page 1: ...ss mainly focus on the distribution of electronic components Line cards we deal with include Microchip ALPS ROHM Xilinx Pulse ON Everlight and Freescale Main products comprise IC Modules Potentiometer...

Page 2: ...2016 Microchip Technology Inc DS50002437A MCP1643 RGB LED Driver Demonstration Board User s Guide...

Page 3: ...pts 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 ha...

Page 4: ...2016 Microchip Technology Inc DS50002437A page 3 Object of Declaration MCP1643 RGB LED Driver Demonstration Board...

Page 5: ...MCP1643 RGB LED Driver Demonstration Board User s Guide DS50002437A page 4 2016 Microchip Technology Inc NOTES...

Page 6: ...1 4 MCP1643 RGB LED Driver Demonstration Board Overview 12 1 5 MCP1643 RGB LED Driver Demonstration Board Features 13 1 6 What the MCP1643 RGB LED Driver Demonstration Board Kit Includes 13 Chapter 2...

Page 7: ...MCP1643 RGB LED Driver Demonstration Board User s Guide DS50002437A page 6 2016 Microchip Technology Inc NOTES...

Page 8: ...ntains flow charts for the MCP1643 RGB LED Driver Demonstration Board Appendix A Schematics ad Layouts Shows the schematic and layout diagrams for the MCP1643 RGB LED Driver Demonstration Board Append...

Page 9: ...dialog button Click OK A tab Click the Power tab N Rnnnn A number in verilog format where N is the total number of digits R is the radix and n is a digit 4 b0010 2 hF1 Text in angle brackets A key on...

Page 10: ...ation service helps keep customers current on Microchip products Subscribers will receive e mail notification whenever there are changes updates revisions or errata related to a specified product fami...

Page 11: ...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 sal...

Page 12: ...a PWM only device that operates at a fixed 1 MHz switching frequency The device has an operating input voltage range from 0 5V to 5V VIN VLED with a 0 65V start up voltage For applications that requi...

Page 13: ...CP1643 RGB LED Driver Demonstration Board was developed to help engineers reduce product design cycle time The intensity of each color of the LED can be adjusted using individual potentiometers for ea...

Page 14: ...fter start up Start up voltage 0 8V at full load MCP1643 PWM switching frequency 1 MHz RGB multiplexing frequency 70 Hz Fixed output current for all colors 350 mA Start Stop functions with push button...

Page 15: ...MCP1643 RGB LED Driver Demonstration Board User s Guide DS50002437A page 14 2016 Microchip Technology Inc NOTES...

Page 16: ...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 Figure 2 1 illustrates the components from the...

Page 17: ...poral demonstration state 2 3 BOARD TESTING Follow these steps to test the board functionalities 1 Connect the input supply as shown in Figure 2 3 or connect a AA battery in the battery slot on the ba...

Page 18: ...enables the MCP1643 and controls the RGB LED in order to power each color independently see Figure 2 4 The amount of time each LED is ON is set by the user through the three potentiometers FIGURE 2 4...

Page 19: ...rs would otherwise uncontrollably discharge into the LED FIGURE 2 5 PIC16F1455 Output Voltage and Enable Signal 2 3 3 Programming the PIC16F1455 Microcontroller The board comes factory programmed with...

Page 20: ...P1643 RGB LED Driver Demonstration Board Figure 3 1 depicts the Main routine flow chart FIGURE 3 1 Main Code Sequence START Initialize ADC interrupts Timer 0 Run start up sequence Read ADCs Determine...

Page 21: ...delay Blue counter max Blue interval counter max Blue intensity 0 interval delay Red counter max Red interval counter max Red interval STOP MCP1643 Enable Enable Green LED Disable Green LED Enable Bl...

Page 22: ...1 Appendix A Schematics and Layouts A 1 INTRODUCTION This appendix contains the following schematics and layouts for the MCP1643 RGB LED Driver Demonstration Board Board Schematic Board Top Silk Board...

Page 23: ...MCP1643 RGB LED Driver Demonstration Board User s Guide DS50002437A page 22 2016 Microchip Technology Inc A 2 BOARD SCHEMATIC 3 5 AA CMD_ CMD_G 4 5 5 6 6 5 5 5 5 7 8...

Page 24: ...Schematics and Layouts 2016 Microchip Technology Inc DS50002437A page 23 A 3 BOARD TOP SILK A 4 BOARD TOP SILK AND COPPER A 5 BOARD TOP COPPER A 6 BOARD BOTTOM COPPER A 7 BOARD BOTTOM SILK AND COPPER...

Page 25: ...MCP1643 RGB LED Driver Demonstration Board User s Guide DS50002437A page 24 2016 Microchip Technology Inc A 8 BOARD BOTTOM SILK...

Page 26: ...green blue 2 1V 3 5V 3 5V 300 mA 350 mA 350 mA SMD TO 252 3 Lumex Inc SML LX1610RGBW A 1 PCB1 MCP1643 Printed Circuit Board 04 10346 1 4 Q1 Q2 Q3 Q4 Transistor FET N Channel IRLML2402 20V 1 2A 540 mW...

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