AN874 Overview
Key Specifications
Package: QFN
Mount Type: Surface Mount
Pins: 24
Max Voltage (typical range): 3.6 V
Description
The circuit and firmware described in this application note demonstrates a minimal parts count driver/controller for a high-power (1W or greater) LED. The circuit is based on a buck topology switching power supply using the on-chip comparator peripheral within the PIC12F675 PICĀ® microcontroller.