Single-Stage, High Power Factor LED Driver-Controller from Diodes Incorporated with Mixed-Mode Dimming

PLANO, Texas–(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

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

Recent news releases, annual reports and SEC filings are available at
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Company Contact:
Diodes Incorporated
Emily Yang
Worldwide Sales and Marketing
P: 972-987-3900

Investor Relations Contact:
Shelton Group
Leanne K.
EVP, Investor Relations
P: 949-224-3874

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