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印刷

ON Semiconductor Introduces Industry’s First USB 2.0 OVP Device With Both Integrated Current Protection and High-Speed ESD Protection   Chinese Danish Finnish Japanese Korean Swedish

New NCP362 is ideal for protection of USB 2.0 applications in portable, telecom, consumer and computing systems

NCP362 – the industry’s first overvoltage protection (OVP) devicePHOENIX, Ariz. – April 27, 2009 – ON Semiconductor (Nasdaq: ONNN), a leading global supplier of high-performance, energy efficient, silicon solutions, today introduced the NCP362 – the industry’s first overvoltage protection (OVP) device with both integrated current protection and high speed electrostatic discharge (ESD) protection for USB 2.0 applications in portable, telecom, consumer and computing systems.

This integrated device significantly improves safety of USB ports by streamlining design in portable electronics by eliminating the need for standalone OVP, overcurrent protection (OCP) and transient voltage suppressor (TVS) components that have – until now – been necessary to protect vulnerable portable devices against electrical surge damage and electronic discharge from host, wall adapters, human body and unsuitable after-market AC-DC adapters.

Features and Benefits
The new NCP362, which is placed behind the USB or bottom connector, provides +20 volts (V) front end protection for the downstream USB port, thanks to an integrated power MOSFET that can handle 500 milliamperes (mA).

Because long cables can induce ringing due to serial inductance in the USB cable, the NCP362 has been designed to open the VBUS line when the voltage transient exceeds the internal overvoltage threshold (OVLO), which is internally set to 5.675 V. This threshold value can be changed by a metal tweak if a different value is needed for a specific application. In addition, OCP is available, opening the internal MOSFET if the downstream VBUS’s load exceeds 750 mA, supporting 500 mA – continuous - for the USB ports. This current clamp value can be also adjusted to a lower value to be compliant to 100 mA single port or dual one.

Both protections are very fast – at fewer than 100 nano-seconds – offering an efficient protection level for the downstream transceiver, battery charger devices or Lithium battery to be charged. In addition, the NCP362 offers system level IEC 61000-4-2 +/-15 kilovolts (kV) ESD protection. The part integrates high-speed ESD diodes for data lines (D+ and D-) and TVS for VBUS pin of the USB ports. Due to the very low capacitance of integrated ESD diodes (0.5 pico-farads/pF), this device is compliant with the USB 2.0 protocol. Depending of the selected NCP362x version (see ordering table in the product datasheet), VBUS TVS or D+/D- (or both) are integrated in the same package.

The NCP362 is a key addition to the portfolio of ON Semiconductor products targeted at the four primary subsystems typically found in portable applications. This device specifically addresses the challenging requirements within the interconnect subsystem. ON Semiconductor also offers solutions for the display and lighting, power management, and audio/video subsystems for portable devices.

Packaging and Pricing
The NCP362xMTBG is now available in a 2 mm x 2.5 mm x 0.55 mm DFN, Pb-free, RoHS compliant package. It is budgetary priced at $0.42 per unit in 3,000 unit quantities.

For more information, please visit www.onsemi.com or contact Bernard Remaury at Bernard.remaury@onsemi.com.

About ON Semiconductor
With its global logistics network and strong product portfolio, ON Semiconductor (Nasdaq: ONNN) is a preferred supplier of high performance, energy efficient, silicon solutions to customers in the power supply, automotive, communication, computer, consumer, medical, industrial, mobile phone, and military/aerospace markets. The company’s broad portfolio includes power, analog, DSP, mixed-signal, advance logic, clock management, non-volatile memory and standard component devices. Global corporate headquarters are located in Phoenix, Arizona. The company operates a network of manufacturing facilities, sales offices and design centers in key markets throughout North America, Europe, and the Asia Pacific regions. For more information, visit http://www.onsemi.com.

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ON Semiconductor and the ON Semiconductor logo are registered trademarks of Semiconductor Components Industries, LLC. All other brand and product names appearing in this document are registered trademarks or trademarks of their respective holders. Although the company references its Web site in this news release, such information on the Web site is not to be incorporated herein.