STMicroelectronics Innovates Integrated Protection ICs Enabling Smaller, Sleeker Power-over-Ethernet Equipment

First integrated device providing IEC 61000-4-5 surge protection for PoE applications saves 55 percent of space consumed by conventional protection circuitry

GENEVA, June 29 /PRNewswire-FirstCall/ -- Power over Ethernet (PoE), or IEEE 802.3at, is the industry standard enabling devices such as Voice-over-IP (VoIP) phones, wireless-LAN access points, RFID tag readers, sensors, or cameras to connect into a network without also requiring a nearby wall outlet for power. This enhances convenience and flexibility for end users, and also reduces equipment costs, as no external AC/DC power adapter is required. In 2008, VDC Research Group predicted that annual shipments of PoE-enabled Ethernet switches will increase to over 132 million ports by 2012.

STMicroelectronics (NYSE: STM), a world leader in protection ICs, has simplified the design of equipment for powering devices connected to an Ethernet network by introducing an integrated surge-protection IC that meets Power-over-Ethernet specifications and protects against high-voltage surges, including electrostatic discharge (ESD). ST's PEP01-5841 protection IC is used in Power Sourcing Equipment (PSE), such as PoE-enabled Ethernet switches or hubs, which drive the specified 48V supply onto the Ethernet cable.

The PoE power-supply circuitry in the Ethernet hub or switch can withstand transients on the power lines of up to 100V. Extra protection is necessary to prevent very high voltage surges, such as ESD or EOS, from damaging the power supply. Discrete components are usually used to clamp surges to a voltage below 121V (when specified), but the PEP01-5841 integrates a 100V clamping protection device and filtering capacitors for up to four PoE outputs in a single 5 x 6mm component. This simplifies design and saves up to 55 percent of printed-circuit-board space.

The PEP01-5841 is the first device providing 1kV surge protection as specified by IEC 61000-4-5 that also has a clamping voltage compatible with the 100V PSE controller. ESD protection satisfies worldwide standards including IEC 61000-4-2 and MIL-STD-883 Method 3015.

The PEP01-5841 is available immediately, in the industry-standard SO-8 package, priced at $0.25 in quantities of 10,000 pieces.

About STMicroelectronics

STMicroelectronics is a global leader serving customers across the spectrum of electronics applications with innovative semiconductor solutions. ST aims to be the undisputed leader in multimedia convergence and power applications leveraging its vast array of technologies, design expertise and combination of intellectual property portfolio, strategic partnerships and manufacturing strength. In 2008, the Company's net revenues were $9.84 billion. Further information on ST can be found at www.st.com.

Web site: http://www.st.com/




Review Article Be the first to review this article
Harris


Featured Video
Jobs
Business Partner Manager for Cityworks - Azteca Systems, LLC at Sandy, UT
GIS Analyst II for Air Worldwide at Boston, MA
Mechanical Engineer for IDEX Corporation at West Jordan,, UT
Senior Structural Engineer for Design Everest at San Francisco, CA
Upcoming Events
RoboUniverse San Diego at San Diego CA - Dec 14 - 15, 2016
DGI 2017 at QEII Centre London United Kingdom - Jan 23 - 25, 2017
Geospatial World Forum 2017 Hyderabad at Hyderabad International Convention Center P.O Bag 1101, Cyberabad Post Office Hyderabad Telangana India - Jan 23 - 25, 2017
Trimble
CADalog.com - Countless CAD add-ons, plug-ins and more.



Internet Business Systems © 2016 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