UM0677 Datasheet, PDF (1/16 Pages) STMicroelectronics – High-efficiency switching LED driver for high-current LEDs

UM0677
User manual
High-efficiency switching LED driver
for high-current LEDs
1
Introduction
The progress made in the field of LEDs has led to rapid and impressive results in output
current capabilities. A short time ago the most advanced LEDs had current at 0.350 A, soon
followed by 0.7 A and then 1 A devices. Nowadays even LEDs with several amps of output
are present on the market. These high currents are increasing the requirements on the
driving circuitry for both efficiency and features. This document presents the demonstration
board designed for 2.8 A LEDs (1-3 in a series string) focusing on easy dimming and high
efficiency.
Figure 1. STEVAL-ILL023V1 - 2.8 A LED driver (LED is not included in the kit)
May 2010
Doc ID 15396 Rev 2
1/16
www.st.com