O2Micro Introduces 3-Way LED Bulb Driver Controller with Power Factor Correction

OZ2083 LED driver controller supports 3-way retrofit bulbs with 3-way, 2-circuit sockets

August 26, 2013. O2Micro® International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today extended the Company's General Lighting product portfolio with the introduction of the patent pending OZ2083 3-Way LED Bulb Driver Controller with Power Factor Correction.

3-way desk, table and floor lamps are ubiquitous in the United States, providing consumers with the convenience of high, medium and low brightness in a single bulb. However, today's 3-way lamps are based on energy inefficient incandescent bulbs. Furthermore, the filaments in 3-way incandescent bulbs burn out at different rates, creating reliability problems and a poor consumer experience.

LED-based, 3-way bulbs provide significant efficiency improvements versus their incandescent counterparts. In addition, they provide much longer operating life, eliminating the reliability problems that plague 3-way incandescent bulbs. But until now, there has been no easy and cost effective way to design the complex driver circuitry required for a 3-way LED bulb. O2Micro's OZ2083 solves this problem.

About the OZ2083 LED Driver Controller

The OZ2083 3-Way LED Bulb Driver Controller with Power Factor Correction is a Buck converter controller utilizing quasi-resonant technology. The device provides two detection inputs based on proprietary technology to support 3-way, 2-circuit sockets used within 3-way desk, table, and floor lamps to produce three levels of LED brightness in a low-medium-high configuration. Using the OZ2083, manufacturers can easily and rapidly develop drop-in LED bulb replacements for today's 3-way incandescent bulbs.

The OZ2083 is a highly optimized controller for non-isolated Buck converter off-line applications. The device features the highest level of integration, reducing the system level driver bill of material (BOM) cost and component count to industry-leading levels. An external MOSFET provides the flexibility to support a range of application requirements.

The OZ2083 supports universal 85V to 265V operation, enabling one LED bulb to address the global marketplace. Integrated power factor correction enables high power factor and low Total Harmonic Distortion (THD) over a wide input voltage range to meet both residential and commercial requirements, further helping OEMs meet global regulatory requirements.

High efficiency greater than 88% reduces energy consumption and thermal management complexity. Integrated over-temperature, over-voltage, cycle-by-cycle current limiting, LED open circuit and LED short circuit protection and maximum gate drive output clamp provide safe and reliable operation. Excellent LED current regulation ensures consistent lumen output, regardless of varying line input conditions.

Product Availability and Additional Information

The OZ2083 is available in a cost effective 8-pin SOP package and is in high volume production now. Samples and evaluation boards are available now for qualified customers.

For additional information, contact O2Micro sales representatives via our website at www.o2micro.com.

About O2Micro

Founded in April 1995, O2Micro develops and markets innovative power management components for the Computer, Consumer, Industrial, Automotive and Communications markets. Products include LED General Lighting, Backlighting, Battery Management and Power Management.

O2Micro International maintains an extensive portfolio of intellectual property with 24,081 patent claims granted, and over 25,000 more pending. The company maintains offices worldwide. Additional company and product information can be found on the company website at www.o2micro.com.

O2Micro, the O2Micro logo, and combinations thereof are registered trademarks of O2Micro. All other trademarks or registered trademarks are the property of their respective owners.

Statements made in this release that are not historical, including statements regarding O2Micro's or management's intentions, hopes, beliefs, expectations, representations, projections, plans or predictions of the future, are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements involve risks and uncertainties that may cause actual results to differ materially from those set forth in these statements. Factors that could cause actual results to differ materially include risks and uncertainties such as reduced demand for products of electronic equipment manufacturers which include O2Micro's products due to adverse economic conditions in general or specifically affecting O2Micro's markets, technical difficulties and delays in the developments process, and errors in the products. You are also referred to the Form F-1 in connection with the company's initial public offering in August 2000, Form F-3 in connection with the company's public offering in November 2001, and the annual reports on Form 20-F, which identify important risk factors that could cause actual results to differ from those contained in the forward-looking statements. The company assumes no obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise.

Contact Information:
Scott L. Anderson
Director of Investor Relations, O2Micro
Phone: 408.987.5920. x8888
Email: scott.anderson@o2micro.com

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