Products, Materials & Tools | Mar 31, 2011

Diodes LED Driver Delivers Higher Current for MR16, 12V and 24V LED Lamp Design

The AL8806 buck LED driver from Diodes Incorporated is capable of producing a constant current of up to 1.5A from voltage sources of between 6V and 30V. Suiting MR16, 12V and 24V LED lamp design, the driver ensures a 5% average LED current accuracy for up to 9 high power LEDs over the wide operating voltage range, helping to significantly improve inter-lamp luminance matching.

Applications:
• High power MR16 lamps
• General illumination lamps
• Multi-die LED driver

Features:
• LED driving current up to 1.5A
• Better than 5% accuracy
• High efficiency up to 98%
• Operating input voltage from 6V to 30V
• High switching frequency up to 1MHz
• PWM/DC input for dimming control
• Built-in output open-circuit protection
• SOT25 MSOP8-EP: Available in “Green” Molding
• Compound (No Br, Sb) with lead Free Finish/RoHS Compliant

The high current handling of the AL8806 means it will also meet the needs of the latest multi die package LEDs, where current levels above 1A are required.  This simple, cost-effective driver is packaged in the small footprint low thermal impedance MSOP-8EP, supporting higher LED current drive at higher ambient operating temperatures.  Device efficiency is high at up to 98%.

Maximum output current is simply set via a resistor and switching at a frequency of up to 1MHz, the driver helps reduce the size of supporting external components, enabling PCB size to be minimized.  Lamp dimming is achieved by applying either a DC voltage or PWM signal that provides a wide range of brightness control that doesn’t over drive the LED current.

The AL8806 30V, 1.5A buck LED driver is priced at $0.55 each in 1k quantities.  For further information, visit www.diodes.com/ or download the datasheet directly here.

About Diodes Inc.:
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 www.diodes.com/.

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