Fairchild Semiconductor’s Application-Specific Reverse Polarity Switches Protect Mobile Devices Against Damage from Dangerous Reverse Bias and Over-Voltage Transient Events

Simple Plug-and-Play Solutions with Low Series Resistance and Fast Response Simplify Design, Save Board Space, and Reduce Power Consumption

SAN JOSE, Calif. — (BUSINESS WIRE) — August 20, 2012 — Improperly installed batteries, hot-plug transients, faulty connections, and reversible third party USB chargers can all generate a dangerous reverse bias or reverse transient situation as well as over-voltage spikes. These complications may lead to device failure and returns, lost revenue, and damaged brand reputations. To help protect both electronic devices and their users, Fairchild Semiconductor (NYSE: FCS) now offers a new line of low-power, application-specific, reverse polarity protection switches which also feature optional over-voltage transient protection.

The devices provide low resistance, fast response, and with nearly 50X less power consumption than a traditional series Schottky solution at 1Amp, they offer noticeable power savings all while protecting the system from dangerous reverse polarity. To simplify design and remove the guesswork, these reverse polarity protection switches have been optimized for the application to provide an easy “plug and play” implementation solution.

Part of Fairchild’s initial offering in the reverse polarity family are the FR011L5J low-side reverse polarity protector and the FR014H5JZ high-side reverse polarity protector with integrated over-voltage transient suppression (OVS). In the event of a reverse bias condition, both devices shut off power and provide a full voltage block to help protect downstream circuits.

Both protectors dissipate less than 0.02W during 1A normal operation, and less than 20µW in a 16V reverse bias event, a performance not possible with a diode solution. The low dissipation of the FR0XXX5J series significantly minimizes the need for heat sinking and allows for smaller package sizes, reduced board space requirements and lowered component costs. Additionally, the devices’ nSec scale reverse bias blocking response time blocks negative transients and other potentially damaging DC events. The FR014H5JZ and FR011L5J parts are both USB tested and compatible.

For more information or to order samples, please visit:

http://www.fairchildsemi.com/pf/FR/FR011L5J.html

http://www.fairchildsemi.com/pf/FR/FR014H5JZ.html

Features and Benefits

FR014H5JZ

  • -30V reverse polarity protection offers wide range protection from multiple common reversible sources including household, industrial and automotive DC power sources
  • +32V 24-hour withstanding rating allows the device to withstand most common DC over-voltage and erroneous connection events, including IEC 24-hour 32V automotive stress tests
  • 14 mΩ typical series resistance at 5V decreases power consumption, voltage drop and heat sinking board level requirements
  • Integrated TVS over-voltage suppression provides downstream devices with protection from potential damage and supports removal of additional components like discrete TVS devices or over-voltage protection IC’s
  • 3.3mm x 3.3mm package

FR011L5J

  • Up to -30V reverse polarity protection offers wide range protection resulting in fewer returns
  • 11 mΩ typical series resistance at 5V decreases power consumption, voltage drop and heat sinking board level requirements
  • +29V 24-hour withstanding rating allows the device to withstand most common DC over-voltage and erroneous connection events, including 24V truck and car double battery events
  • 2mm x 2mm package

Fairchild’s circuit protection technology portfolio is built upon a history of providing both innovative and traditional solutions. For customers that require traditional solutions, Fairchild is continuing to grow its portfolio of TVS, Schottky diodes and traditional PN diodes – pursuing smaller packages, higher power devices and lower Vf solutions. However, it is solutions like the reverse polarity protectors that leverage the company’s innovative track record to meet customer-specific requirements. Fairchild’s expanding circuit protection product offering further demonstrates its commitment to customer needs, innovative design and industry expertise.

Price: US $ in 1,000 quantity pieces

FR011L5J: $0.35

FR014H5JZ: $0.56

Availability: Samples available upon request.

Delivery: 8-12 weeks ARO

Contact Information:

1 | 2  Next Page »



Review Article Be the first to review this article
Featured Video
Editorial
Jeff RoweJeff's MCAD Blogging
by Jeff Rowe
Desktop Metal Shows AM Mettle
Jobs
Estimator / Bidder for Rulon International at Saint Augustine, FL
Upcoming Events
EMO Hannover 2017 at Hannover Germany - Sep 18 - 23, 2017
The 30th Annual Integrated Process Excellence Symposium & Training at Wyndham Grand Bonnet Creek Resort Orlando FL - Sep 18 - 20, 2017
Additive Manufacturing Conference 2017 at Knoxville Convention Center 701 Henley Street Knoxville TN - Oct 10 - 12, 2017
FABTECH 2017 at McCormick Place Chicago IL - Nov 6 - 9, 2017



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 GISCafe - Geographical Information Services TechJobsCafe - Technical Jobs and Resumes ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy Policy Advertise