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Multiple White LED Demonstration Board Using the Using a PIC10F202 MCU to Provide the PWM Signal


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Technical Datasheet:
MCP1650DM-LED2   Datasheet
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Product Overview

The MCP1650DM-LED2 is a MCP1650 multiple white LED demo board demonstrates the use of a conventional boost topology in a LED application. The board also serves as a platform to evaluate the MCP1650 boost controller. A PIC10F202 microcontroller in a SOT23 6 pin package is used to provide the PWM signal to the MCP1650. It also accepts a push button input that allows the user to adjust the white LEDs to three different intensities of 100%, 50% and 25%. Since designers are tasked with improving efficiency, lowering cost and decreasing size, white LEDs are now being used. Powering white LEDs, which have a forward drop(VF) of 3.6V, typically becomes more difficult when the application requires multiple LEDs. The design of the demo board is done with boost controller IC MCP1650, which is capable of generating an output voltage of over 100V. The PIC10F202 microcontroller is programmable, allowing the user to modify or develop their own firmware routines to further evaluate the MCP1650.
  • Programmed MCP1650 white LED intensity control via the PIC10F202
  • Nine white LEDs connected in series
  • PIC10F202 is used to generate the PWM signal which controls the intensity of the LEDs
  • Push button selection for three levels of intensity control
  • Includes one battery holder for three AA batteries (batteries not included)


LED Lighting, Power Management


MCP1650 multiple white LED demo board, MCP1650 multiple white LED demo board User's Guide.

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