Fairchild Semiconductor’s LED Backlight Boost Switches Reduce Power Losses, Minimize Sub-Harmonic Oscillation in High-Power LED Applications

Integrated High-Voltage Dimming MOSFETs Provide Fast Dimming Response, Better Efficiency and Reliability

SAN JOSE, Calif. — (BUSINESS WIRE) — October 1, 2012 — Designers of high-power LEDs are challenged with preventing power losses and sub-harmonic oscillations associated with inefficient discontinuous conduction mode (DCM) boost converters. Fairchild Semiconductor’s (NYSE: FCS) FAN7340 and FAN73402 single-channel boost controllers with integrated high-voltage dimming MOSFETs address these challenges by helping designers achieve greater efficiency, performance and better reliability in high-power lighting applications such as LED backlighting for 3D televisions and monitors.

These backlight driving boost switches use a current-mode control topology with programmable slope compensation to prevent sub-harmonic oscillation. Designed with an internal dimming and analog pulse-width modulation (PWM), these devices overcome the short falls of a DCM boost converter by achieving a fast PWM dimming response.

Both devices offer integrated protection features such as under-voltage lockout, open LED protection, and over-voltage protection that help to minimize component count. Additionally, these devices provide error prevention by generating a FAULT signal with delay if an abnormal LED string condition occurs.

Features and Benefits:

  • FAN7340: RDS(ON) = 3.4Ω at VGS = 10V, BVDSS = 400V
  • FAN73402: RDS(ON) = 1.0Ω at VGS = 10V, BVDSS = 200V
  • Wide-supply voltage range: 10V to 35V
  • Cycle-by-cycle current limiting
  • Internal soft-start prevents in-rush current flowing into output capacitor at startup
  • Programmable switching frequency

Packaging and Pricing Information (in US 1,000 quantity pieces)

Samples available upon request - Delivery 8-12 weeks ARO

  • Both available in a 16-lead SOIC package the FAN7340 is priced at $0.85 and the FAN73402 is priced at $1.06

Fairchild enables engineers to drive innovation in their designs by developing solutions like the FAN7340 and FAN73402. The company offers a broad portfolio of full range power semiconductor devices that cover high-, mid-, and low-power ranges to help designers maximize energy savings in virtually every power-sensitive application.

For more information, please visit:

http://www.fairchildsemi.com/applications/consumer/tv-and-monitor/led-tv-and-monitor-led-blu.html

http://www.fairchildsemi.com/applications/lighting/led-lighting/high-power.html

Fairchild Semiconductor: Solutions for Your Success™.

Contact Information:

To contact Fairchild Semiconductor about this product, please go to: http://www.fairchildsemi.com/cf/sales_contacts/.

For information on other products, design tools and sales contacts, please visit: http://www.fairchildsemi.com.

Note to Editor: For a datasheet in PDF format, please go to:

http://www.fairchildsemi.com/ds/FA/FAN7340.pdf
http://www.fairchildsemi.com/ds/FA/FAN73402.pdf

About Fairchild Semiconductor:

Fairchild Semiconductor (NYSE: FCS) – global presence, local support, smart ideas. Fairchild delivers energy-efficient, easy-to-use and value-added semiconductor solutions for power and mobile designs. We help our customers differentiate their products and solve difficult technical challenges with our expertise in power and signal path products. Please contact us on the web at http://www.fairchildsemi.com.

Follow us on Twitter @ http://twitter.com/FairchildSemi

View product and company videos, listen to podcasts and comment on our blog @ http:// www.fairchildsemi.com/engineeringconnections

Visit us on Facebook @ http://www.facebook.com/FairchildSemiconductor



Contact:

Fairchild Semiconductor:
Paul R. Hughes, 800-341-0392 X 3110
Public Relations Manager
E-mail: Email Contact
or
Malorie Pastor, 800-341-0392 X 3362
Public Relations Coordinator
E-mail: Email Contact




Review Article Be the first to review this article
Featured Video
Jobs
Currently No Featured Jobs
Upcoming Events
SRTC-2018 at The Leela Ambience Gurugram NEW DELHI India - Jul 25 - 26, 2018
MPSoC Forum 2018 at The Cliff Lodge 9320 South Cliff Lodge Drive Snowbird UT - Jul 29 - 3, 2018
CDNLive China 2018 at Kerry Hotel Pudong, Shanghai 1388 Hua Mu Road, Pudong Shanghai China - Aug 10, 2018
CDNLive Taiwan 2018 at Ambassador Hotel Hsinchu Taiwan - Aug 14, 2018



Internet Business Systems © 2018 Internet Business Systems, Inc.
25 North 14th Steet, Suite 710, San Jose, CA 95112
+1 (408) 882-6554 — 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 PolicyAdvertise