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USB switch boasts 2.0, 3.0 standards compliance

Posted: 05 Sep 2011 ?? ?Print Version ?Bookmark and Share

Keywords:usb switch? single-channel? power switch?

Diodes Inc. introduces a device that delivers enhanced robustness and protection for the Universal Serial Bus (USB) interface in a variety of applications, where heavy capacitive loads and short-circuits could occur when connecting devices via the USB port.

The increasing presence of USB ports in all computing products, and fast growing in use in consumer peripherals and communications equipment, has led to increased demands for effective electrical protection. The AP2337 from Diodes is applicable for use in not only traditional computing devices such as desktops, servers, laptops, monitors and network routers, but also in home entertainment equipment such as high-definition set-top boxes and flat-screen HDTVs.

Fully compliant with USB 2.0 and 3.0 standards, the AP2337 1A single-channel, integrated, high-side power switch is optimized for both self-powered and bus-powered applications, and other 3C5V hot-swapping applications. Such applications include where peripherals or portable electronics are connected to, and disconnected from, a desktop or laptop computer or another consumer device without requiring a system reboot.

Protection capabilities of the AP2337 include: fast short-circuit response time of 5?s, preventing system shutdown and restart, built-in output-discharge functionality, low on-resistance of 110m over 1A continuous load, reversecurrent blocking and output overvoltage protection. The AP2337 is offered in the space-saving SOT23 package. The AP2337, which has UL approval pending and is IEC 60950-1 (CB scheme) certified, offers 3kV human body model and 300V machine model electro-static discharge protection.

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