Products, Materials & Tools | Jun 28, 2013

Diodes' Releases DC-DC Converter to Save Space in LED Lighting Applications

Diodes Incorporated, a leading global manufacturer and supplier of high-quality application specific standard products within the broad discrete, logic and analog semiconductor markets, today announced a miniature DC-DC converter supporting boost, buck and voltage-inverting circuit topologies for LED lighting and general-purpose power management applications. The AL8811 is available in the 3.0mm x 4.9mm x 1.1mm MSOP-8L package, requiring minimal external components and enabling significant reductions in both circuit footprint and BOM cost.

Applications:
•    Low Voltage LED Lighting such as MR-16
•    General Purpose DC-DC Converter

Features:
•    Operation from 3.0V to 20V Input
•    Low Standby Current
•    Current Limiting
•    Output Switch Current to 1.6A
•    Output Voltage Adjustable
•    Frequency Operation to 100 kHz
•    Precision 2% Reference
•    Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
•    Halogen and Antimony Free. “Green” Device (Note 3)

Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.

While the AL8811 is advantageous for many low-voltage LED lighting applications, dimmable MR16 lamps will particularly benefit from the new device. For example, using the AL8811 in boost mode in conjunction with an AL8807A buck LED driver creates a high-power factor, dimmable MR16 solution that is both compact in size and low in component cost. Additionally, this two-stage design ensures good compatibility with a variety of electronic transformers and low LED current ripple.

With a wide 3V to 20V input voltage operating range and an output voltage up to 36V, the AL8811 is suitable for an array of different 12V AC lighting applications. The device's shut-down current is also very low at 0.01μA (typical), while its maximum output switch current is 1.6A.

Comprising an internal temperature-compensated reference, a controlled duty cycle oscillator with an active current-limit circuit, driver and high-current output switch, the AL8811 from Diodes Incorporated provides designers with a particularly versatile solution for DC-DC conversion circuits.

For further information, visit the Company's website at www.diodes.com or download the datasheet.

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, 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' corporate headquarters, logistics center, and Americas' sales office are located in Plano, Texas. Design, marketing, and engineering centers are located in Plano; San Jose, California; Taipei, Taiwan; Manchester, England; and Neuhaus, Germany. Diodes' wafer fabrication facilities are located in Kansas City, Missouri and Manchester, with four manufacturing facilities located in Shanghai, China, and two joint venture facilities located in Chengdu, China, as well as manufacturing facilities located in Neuhaus and Taipei. Additional engineering, sales, warehouse, and logistics offices are located in Fort Worth, Texas; Taipei; Hong Kong; Manchester; Shanghai; Shenzhen, China; Seongnam-si, South Korea; Suwon, South Korea; Tokyo, Japan; and Munich, Germany, with support offices throughout the world. For further information, including SEC filings, visit Diodes' website at www.diodes.com.

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