LED Driver From Supertex Delivers Superior Current Accuracy With Integrated MOSFET

SUNNYVALE, CA -- (MARKET WIRE) -- Jan 04, 2011 -- Supertex (NASDAQ: SUPX), a recognized leader in high voltage analog and mixed signal integrated circuits (ICs), today introduced HV9967, an open loop, average-mode current control LED driver IC that operates in a constant off-time mode. The IC includes a 60V, 0.8 ohm MOSFET that can be used as a stand-alone buck converter, or connected as a source driver output for driving an external MOSFET, such as Supertex DN2450, to operate at offline AC line voltages.

The HV9967 features a proprietary control method that achieves fast, accurate LED current control through sensing only the switch current. The IC delivers LED current accuracy of +/-3% without sensitivity to external component variation. It utilizes average-mode current control, which doesn't produce a peak-to-average error, and therefore greatly improves LED current accuracy and line and load regulation without requiring loop compensation or direct current sensing. The HV9967 also includes internal over-temperature and short circuit protection, and a PWM dimming input.

"With its unique current control method, HV9967 offers solid-state lighting designers the benefits of high current accuracy and consistency for extended LED lifetimes," states Hernan DeGuzman, Vice President of Marketing for Supertex. "This IC is quite simple to use, and its accuracy is virtually insensitive to the tolerances of external passive components in the application circuit."

The HV9967 is available in an 8-lead MSOP package (HV9967MG-G). The part is Green and RoHS compliant. Samples are available from stock. Lead-time for production quantities is 4-6 weeks ARO. Pricing is US$.80 each for the HV9967MG-G in 1K quantities.

About Supertex
Supertex, Inc. is a publicly held mixed signal semiconductor manufacturer, focused in high voltage analog and mixed signal products for use in the medical, LED lighting, display, industrial, and telecommunication industries. Supertex product, corporate and financial information is readily available at www.supertex.com.

Image Available: http://www2.marketwire.com/mw/frame_mw?attachid=1468138

Corporate Headquarters:
Ken Vickers
Marketing Communications Manager
408/222-4810

Email Contact 





Review Article Be the first to review this article
Featured Video
Editorial
More Editorial  
Upcoming Events
MPSoc Forum 2017 - July 2 - 7, 2017, Les Tresoms Hotel, Annecy, France at Les Tresoms Hotel Annecy France - Jul 2 - 7, 2017
SEMICON West 2017 at Moscone Center San Francisco CA - Jul 11 - 13, 2017
11th International Conference on Verification and Evaluation of Computer and Communication Systems at 1455 DeMaisonneuve W. EV05.139 Montreal Quebec Canada - Aug 24 - 25, 2017
DVCon India 2017, Sept 14 - 15, 2017 at The Leela Palace Bengalore India - Sep 14 - 15, 2017
S2C: FPGA Base prototyping- Download white paper



Internet Business Systems © 2017 Internet Business Systems, Inc.
595 Millich Dr., Suite 216, Campbell, CA 95008
+1 (408)-337-6870 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering TechJobsCafe - Technical Jobs and Resumes GISCafe - Geographical Information Services  MCADCafe - Mechanical Design and Engineering ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy Policy