Smart Lighting
High Power-Factor Buck LED Driver Meets Worldwide Retrofit Lamp Requirements
PLANO, Texas--Diodes Incorporated (Nasdaq: DIOD), a leading global manufacturer and supplier of high-quality application specific standard products within the broad discrete, logic, analog and mixed-signal semiconductor markets, today announced the AL1676. This universal AC-input LED driver is…
Published by LED professional ·
High power-factor operation is achieved with a single-stage buck converter topology, which uses constant on-time control and a simple closed loop to ensure the AL1676 delivers an accurate constant LED output current with good line and load regulation. Operating in boundary conduction mode eases EMI/EMC design requirements while the ability to detect off-time helps eliminate the need for an auxiliary winding, contributing to the device’s very low BOM count and cost.
The AL1676 includes multiple protection features such as under- and over-voltage, over-temperature and thermal fold-back that all help to increase system reliability within the high ambient temperatures encountered in an LED bulb. The high level of integration coupled with a small 5mm x 6mm SO-7 package also enable a very compact solution size, reusing the same design footprint for different wattage bulbs by virtue of the MOSFET options.
For further information, visit the company’s website at www.diodes.com.
