Single-Stage, High Power Factor LED Driver-Controller from Diodes Incorporated with Mixed-Mode Dimming
May 21 2019 - 10:00AM
Business Wire
Diodes Incorporated (Nasdaq: DIOD) today announced the
introduction of the AL1665 single-stage, fly-back and buck-boost
controller for commercial, connected, and dimmable LED lighting
installations operating at up to 100W.
The AL1665 is designed to drive an external MOSFET to control
LED loads and maintain a high power factor. It provides a compact
and efficient solution that helps minimize the use of additional
components and maintains high switching efficiency.
Designed to operate from an AC input voltage of between 85VAC
and 305VAC, the AL1665 utilizes primary side regulation (PSR)
topologies, removing the need for optical isolation or secondary
side control. With PSR, developers can design smaller solutions
using less PCB area and achieve lower bill of material costs, while
delivering constant current regulation to high-power LED lighting
applications.
The ability to apply dimming across 0.5% to 100% of the
high-power output makes the AL1665 suitable for commercial LED
applications where the lighting output levels need to be adjustable
to save power, or for aesthetic purposes like in retail displays.
Compatible with ANSI-approved dimmers, the output voltage can be
adjusted between 0V and 10V using a dedicated PWM input, or with an
analog input voltage of between 0V and 2.5V, making it simple to
develop connected lighting systems that can be managed both locally
and remotely.
The device employs boundary condition mode (BCM) conversion with
valley switching to minimize losses and deliver high efficiency
with low EMI. The wide supply voltage allows the AL1665 to operate
in any geographical region directly from the main supply, while its
line and load regulation of less than ±2%, power factor of more
than 0.9, and THD of less than 20% enables manufacturers to comply
with all relevant legislation.
The AL1665 is available in the SO-8 package. Further information
is available at www.diodes.com.
About Diodes Incorporated
Diodes Incorporated (Nasdaq: DIOD), a Standard and Poor’s
SmallCap 600 and Russell 3000 Index company, is a leading global
manufacturer and supplier of high-quality application specific
standard products within the broad discrete, logic, analog and
mixed-signal semiconductor markets. Diodes serves the consumer
electronics, computing, communications, industrial, and automotive
markets. Diodes’ products include diodes, rectifiers, transistors,
MOSFETs, protection devices, function-specific arrays, single gate
logic, amplifiers and comparators, Hall-effect and temperature
sensors, power management devices, including LED drivers, AC-DC
converters and controllers, DC-DC switching and linear voltage
regulators, and voltage references along with special function
devices, such as USB power switches, load switches, voltage
supervisors, and motor controllers. Diodes also has timing,
connectivity, switching, and signal integrity solutions for
high-speed signals. Diodes’ corporate headquarters and Americas’
sales office are located in Plano, Texas and Milpitas, California.
Design, marketing, and engineering centers are located in Plano;
Milpitas; Taipei, Taiwan; Taoyuan City, Taiwan; Zhubei City,
Taiwan; Manchester, England; and Neuhaus, Germany. Diodes’ wafer
fabrication facilities are located in Manchester and Greenock, UK,
and Shanghai, China. Diodes has assembly and test facilities
located in Shanghai, Jinan, Chengdu, and Yangzhou, China, as well
as in Hong Kong, Neuhaus and Taipei. Additional engineering, sales,
warehouse, and logistics offices are located in Taipei; Hong Kong;
Manchester; Shanghai; Shenzhen, China; Seongnam-si, South Korea;
and Munich, Germany, with support offices throughout the world.
Recent news releases, annual reports and SEC filings are
available at the Company’s website: http://www.diodes.com. Written
requests may be sent directly to the Company, or they may be
e-mailed to: diodes-fin@diodes.com.
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version on businesswire.com: https://www.businesswire.com/news/home/20190521005012/en/
Company Contact:Diodes IncorporatedEmily YangVP,
Worldwide Sales and MarketingP: 972-987-3900E:
pressinquiries@diodes.com
Investor Relations Contact:Shelton GroupLeanne K.
SieversEVP, Investor RelationsP: 949-224-3874E:
lsievers@sheltongroup.com
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