LED Driver From Supertex Delivers High Current Accuracy via Average Mode Control

SUNNYVALE, CA -- (Marketwire) -- Jan 24, 2013 -- Supertex, Inc. (NASDAQ: SUPX) today introduced HV9803, an open loop, average-mode, current control LED driver IC operating in a constant off-time mode. It is well suited for backlighting LCD panel applications such as TVs and monitors.

The IC features +/-2% current accuracy, tight line and load regulation of the LED current without any need for loop compensation or high-side current sensing. Its auto-zero circuit cancels the effect of both the input offset voltage and the propagation delay in the current sense comparator. The IC features linear and PWM dimming modes. The HV9803 is equipped with a current limit comparator for hiccup-mode output short circuit protection. It also features a programmable input under-voltage shutdown.

"By utilizing Supertex's patented average-mode current sensing technology, HV9803 provides a low-cost LED backlighting solution for an LCD panel," states Alex Mednik, Director of Application Engineering at Supertex. "The 2% accurate current control of this IC ensures uniformity of the LED backlight."

HV9803 is available in a lead(Pb)-free/RoHS compliant SOIC-8 package (HV9803LG-G). Samples are available from stock. Lead-time for production quantities is 4-6 weeks ARO. Pricing is US$0.41 for the HV9803LG-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, printer and display, industrial and telecommunication industries. Supertex product, corporate and financial information is readily available at www.supertex.com.

Corporate Headquarters:
Christine Mahiya
Manager, Marketing Communications
408/222-4858

Email Contact 





Review Article Be the first to review this article
Harris

Trimble Catalyst

Featured Video
Jobs
Intelligence and Image Analyst for Boeing at Las Cruces, NM
Geospatial Analyst for Vencore at Suitland, MD
Geospatial Intelligence Analyst for Quick Services LLC at Fort Bragg, NC
Sr. Mechanical Engineer for Kateeva at Newark, CA
MECHANICAL ENGINEER for Peter R. Thom and Associates at ORINDA, CA
Senior Design Engineer for Kaman at Gilbert, AZ
Upcoming Events
Geospatial World Forum 2017 at Hyderabad International Convention Center P.O Bag 1101, Cyberabad Post Office Hyderabad Telangana India - Jan 23 - 25, 2017
GMP Compliance for Quality Control Laboratories 2016 at Andheri Kurla Road, Sahar Village Mumbai, Maharashtra India - Jan 23 - 24, 2017
DGI 2017 at QEII Centre London United Kingdom - Jan 23 - 25, 2017
Esri's annual Geodesign Summit 2017 at Esri's Headquarters Redlands CA - Jan 24 - 26, 2017
Teledyne:
CADalog.com - Countless CAD add-ons, plug-ins and more.



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 EDACafe - Electronic Design Automation TechJobsCafe - Technical Jobs and Resumes  MCADCafe - Mechanical Design and Engineering ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy Policy