Clare Introduces a New High-Voltage LED Driver With 8V to 550V Input Voltage Range and Greater Than 90% Efficiency

The CPC9909 High Brightness (HB) LED Driver for a Wide Variety of HB LED Applications

BEVERLY, Mass. — (BUSINESS WIRE) — April 20, 2010 — Clare, Inc., a wholly owned subsidiary of IXYS Corporation (NASDAQ: IXYS), today announced the immediate availability of the CPC9909 High-Voltage HB LED driver. The CPC9909 can drive from a few to hundreds of HB LEDs in-series and/or parallel combinations in a constant peak-current control topology. Manufactured using Clare’s 550V BCDMOS Silicon-On-Insulator (SOI) process, the CPC9909 operates directly off a rectified AC voltage supply, and does not require any additional low voltage supplies. LED brightness can be controlled via the pulse frequency modulation (PWM) or linear dimming inputs.

CPC9909’s PWM with a constant peak-current control scheme is inherently stable, thereby allowing the driver to be operated above 50% duty cycle without loop instability or sub-harmonic oscillations. LED dimming can be implemented by applying a small DC voltage to the LD pin, or by applying a low frequency PWM signal to the PWMD pin.

“The CPC9909 joins the expanding family of HVICs that our technologists have developed in our own proprietary high voltage SOI process for power management applications. By enabling direct off AC line LED control, we bring cost effective solutions for the expanding LED general lighting applications and especially for backlighting of large area LCD displays and TVs. The ease of dimming control with DC or PWM inputs allows for digital control using our specialized line of Zilog MCUs with on board PWM outputs,” commented Dr. Nathan Zommer, CEO of IXYS Corporation.

The CPC9909 is well suited for a variety of solid state HB LED lighting applications such as flat-panel display RGB backlighting, signage, decorative, LED lighting, and DC/DC or AC/DC LED driver applications. The CPC9909N is fully RoHS compliant and available in a standard 8-lead SOIC package, and the CPC9909NE is available in a thermally-enhanced (50 degrees C/W thermal resistance, junction-to-ambient) 8-lead SOIC package for higher ambient or power applications.

About Clare and IXYS, Inc.

Clare, Inc., a leader in the design and manufacture of solid-state relays and high voltage integrated circuits, is a wholly owned subsidiary of IXYS Corporation. IXYS Corporation develops and markets primarily high performance power semiconductor devices that are used in controlling and converting electrical power efficiently in power systems for the telecommunication and internet infrastructure, motor drives, medical systems and transportation. IXYS also serves its markets with a combination of digital and analog integrated circuits. Additional information about Clare, IXYS and Zilog may be found at www.clare.com, www.ixys.com, and www.zilog.com. Please contact your local sales representative: http://www.clare.com/home/pages.nsf/locate.rep. For More Information, contact: Email Contact

Safe Harbor Statement

Any statements contained in this press release that are not statements of historical fact, including the performance, rating, availability, reliability and suitability of products for various applications, may be deemed to be forward-looking statements. There are a number of important factors that could cause the results of IXYS to differ materially from those indicated by these forward-looking statements, including, among others, risks detailed from time to time in the Company's SEC reports, including its Form 10-Q for the quarter ended December 31, 2009. The Company undertakes no obligation to publicly release the results of any revisions to these forward-looking statements.



Contact:

Clare, Inc.
Catherine Austin, 978-524-6823
Fax: 978-524-4900




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