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Diodes Incorporated’s LED Driver Simplifies Low-Voltage Low-cost Lighting Design

Sep 04, 2010

Diodes Inc.

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Dallas, Texas –September 14, 2010 –-- Diodes Incorporated (Nasdaq:
DIOD), a leading global manufacturer and supplier of high-quality application
specific standard products within the broad discrete, logic and analog
semiconductor markets, today announced an LED driver tailored to fit low
voltage illumination products operating at between 6V and 30V. The AL8805, a
1A rated buck mode constant current switching converter, will support up to ten
3W LEDs connected in series, suiting a range of low cost ‘safe electrical’ designs
including the ubiquitous MR16 lamp.

The driver’s typical constant current output accuracy of 5%, irrespective of
source voltage and LED chain length, is more than sufficient to meet the needs
of low cost lighting products, ensuring uniform LED brightness and good interlamp
matching without the need for ballast resistors.

With nominal output current determined by external resistor setting, LED
dimming is simply achieved by either a DC voltage or PWM signal on the
AL8805’s control input. A DC voltage between 0.5V and 2.5V yields an output
current between 25% and 100% of nominal, while a PWM signal between normal
CMOS or TTL levels offers a highly flexible 1000:1 dynamic dimming range.
On/off control is provided via a <0.4V signal applied to the same control input.
The LED driver’s enhanced switching speed and low on-resistance provide 1MHz
switching frequency capability which reduces the size of the external
components required in thermally demanding environments. The AL8805 is
provided in the SOT23-5 package. For more information, visit the Company’s
website 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, and analog semiconductor markets. Diodes serves the consumer
electronics, computing, communications, industrial, and automotive markets.
Diodes' products include diodes, rectifiers, transistors, MOSFETs, protection
devices, functional specific arrays, single gate logic, amplifiers and comparators,
Hall-effect and temperature sensors; power management devices, including LED
drivers, 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. The Company’s corporate
headquarters, logistics center, and Americas’ sales office are located in Dallas,
Texas. Design, marketing, and engineering centers are located in Dallas; San
Jose, California; Taipei, Taiwan; Manchester, England; and Neuhaus, Germany.
The Company’s wafer fabrication facilities are located in Kansas City, Missouri
and Manchester, with two manufacturing facilities located in Shanghai, China,
another in Neuhaus, and a joint venture facility located in Chengdu, China.
Additional engineering, sales, warehouse, and logistics offices are located in
Taipei; Hong Kong; Manchester; and Munich, Germany; with support offices
located throughout the world. For further information, including SEC filings, visit
the Company's website at

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