SOURCE: Supertex

June 17, 2008 09:00 ET

New Inductorless Liquid Lens Driver From Supertex Saves Power, Space in Ultra-Compact Camera Applications

HV892 Utilizes Supertex's Patented Charge Pump Technology in a Compact, 10-Lead 4x4 DFN Package

SUNNYVALE, CA--(Marketwire - June 17, 2008) - Supertex (NASDAQ: SUPX), a recognized leader in high voltage analog and mixed signal integrated circuits (ICs), today introduced the HV892, a liquid lens driver in an assembly-ready DFN package that is capable of driving capacitive loads up to 200pF and is compatible with 40vrms to 60vrms lenses. Supertex's patented charge pump technology is integrated in the HV892 and eliminates the need for the space-consuming components found in inductor-based driver circuits.

The HV892 features an I2C interface that allows for easy system design. Fast startup and response times ensure minimal shutter lag. Monotonicity is guaranteed, eliminating false "best-focus" situations. Its H-bridge output stage provides AC drive to the lens, allowing the use of a single integrated high voltage boost converter while providing alternating polarity to the lens. The HV892 draws less than 20mA when active and less than 1uA in standby mode, prolonging battery life.

"The HV892 represents Supertex's ongoing commitment to deliver leading edge driver solutions for the liquid lens market," said Ahmed Masood, Vice President of Marketing for Supertex, Inc. "This driver leverages our patented inductorless charge pump technology to provide a fully integrated solution for space constrained products such as cell phones."

Supertex's HV892 is available now in a RoHS compliant 10-lead DFN package (HV892K7-G). Lead-time for production quantities is 4-6 weeks ARO. Samples are available now. Pricing for the HV892K7-G is $2.08 each in 1K quantities.

About Supertex

Supertex, Inc. is a publicly held mixed signal semiconductor manufacturer, focused on high voltage analog and mixed signal products for use in the medical, imaging, automotive, industrial, telecommunication, networking, and consumer electronics industries. Supertex product, corporate and financial information is readily available at

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    Ken Vickers
    Marketing Communications Manager