STMicroelectronics Shrinks Space Requirement for Mandatory Surge Protection

- Next-generation Transil™ family absorbs high surge energy over full temperature range to save designers over specifying

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ST마이크로일렉트로닉스

2010-07-15 13:06

서울--(뉴스와이어)--STMicroelectronics (NYSE: STM), a world leader in protection ICs, has announced an innovation that will help reduce the size and cost of surge protectors for electronic equipment by providing specified energy absorption capability up to the maximum operating temperature. Competing devices must be derated significantly at temperatures above 25°C.

Surge protection is mandatory for most electronic equipment, to prevent power supply fluctuations or electrostatic discharges from damaging sensitive circuitry. A diode array, or Transil™, is commonly used to divert the surge energy to ground, away from the circuitry. Hundreds of millions of these devices are used every year, in new products of all types – from handhelds to high-power equipment. A Transil’s energy absorption capability is usually specified at 25°C, reducing to zero at its maximum temperature. Designers often use larger devices to ensure protection over the equipment’s operating range.

ST’s new SMxJ and SMxT series Transils are the first to remedy this by maintaining high surge protection all the way to the device’s maximum junction temperature. This allows engineers to use a smaller, lower-cost device with the assurance that adequate protection will be provided. There are six different series in the range, with specified surge energy from 100W to 1500W (10/1000-microsecond pulse) thereby covering a broad spectrum of applications.

Additional benefits of the SM series include an 80% reduction in leakage current compared to previous generations, which reduces system power consumption and improves energy efficiency. ST also specifies dynamic resistance for its new devices, which allows the clamping voltage to be calculated accurately so as to improve protection and minimize risk of equipment failure.

Major features of SM series:
· High surge capability at maximum junction temperature
· ESD protection meeting IEC 61000-4-2 and MIL-STD-883G
· Specified with 8/20µs surge to meet IEC 61000-4-5 for electrical over-stress
· Leakage current specified at 85°C, meeting telecommunication industry requirements
· Operating temperature range: -40°C to 150°C enabling use in consumer, telecom and industrial applications
· Devices available:

The SM series of Transils are in production now. For pricing, as an example, the SMX1J is priced from $0.085 for 3000 units. Alternative pricing options are available for larger quantities.

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 2009, the Company’s net revenues were $8.51 billion. Further information on ST can be found at www.st.com.

ST마이크로일렉트로닉스 개요
ST마이크로일렉트로닉스는 혁신적인 반도체 솔루션을 다양한 전자 애플리케이션 분야의 고객들에게 제공하고 있는 세계적인 선도업체이다. ST는 자사의 방대한 기술, 설계 전문기술 및 IP 포트폴리오 통합, 전략적 협력업체와 강력한 제조시설 등을 활용하여 멀티미디어 컨버전스 및 전력 애플리케이션 분야에서 명실상부한 선도업체가 되는 것을 목표로 하고 있다. ST의 2010년도 매출은 103억 5,000만 달러이다. ST에 대한 보다 상세한 정보는 www.st.com를 참조하라.

웹사이트: http://www.st.com