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AN1261

Title
Title
Dimming Power LEDs Using a SEPIC Converter and MCP1631 PIC Attach PWM Controller
Name
Name
AN1261
Date
Date
06/24/2015
Description
Description
This application note covers the general concept, design and some source code modifications for using the MCP1631HV Digitally Controlled Programmable Current Source Reference Design for an LED lighting application. The document offers additional insight into the MCP1631HV Digitally Controlled Programmable Current Source Reference Design. A Microchip MCP1631 PWM controller and a low-cost PIC16F616 microcontroller are used to manage a SEPIC (Single Ended Primary Inductive Converter) powertrain. The SEPIC topology is then used to drive and dim Light Emitting Diodes (LEDs).

Silicon Products

Title Product Title
MCP1631V
High-Speed PWM Controller w/Voltage Mode
MCP1631V High-Speed PWM Controller w/Voltage Mode
MCP1631VHV
High-Speed PWM Controller, Multi Chip w/Voltage Mode
MCP1631VHV High-Speed PWM Controller, Multi Chip w/Voltage Mode
MCP1631HV
High-Speed PWM Controller, Multi Chip w/Peak Current Mode
MCP1631HV High-Speed PWM Controller, Multi Chip w/Peak Current Mode
MCP1631
High-Speed PWM Controller w/Peak Current Mode
MCP1631 High-Speed PWM Controller w/Peak Current Mode