Electronic Design

LED-String Driver Operates from Single Cell

This file type includes high-resolution graphics and schematics when applicable. This design describes how to light a string of LEDs of any color from a 1.5-V cell using just a few inexpensive ...
Electronic Design

Driver Powers Up to Six Strings of LEDs

TDK-Lambda has launched its second generation ALD6 series of multi-output dc-dc backlight LED drivers. TDK-Lambda has launched its second generation ALD6 series of multi-output dc-dc backlight LED ...
EDN

Diagnose LEDs by Monitoring the Switch-Mode Duty Cycle

A change in the forward voltage (VF) for a string of series-connected, high-brightness LEDs (HB LEDs) can indicate deterioration or complete failure of one or more of the LEDs. Accordingly, this ...
EDN

High-power LED driver features multiple dimming control modes

The LM3463 by Texas Instruments is a six-channel LED driver with dynamic headroom control for high-power applications that accurately drives up to six strings of LEDs. The biggest cost reductions in ...