Diodes announced a new device that delivers enhanced robustness and advanced 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 new AP2337 from Diodes Incorporated is well-suited 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 new AP2337 1A single-channel, integrated, high-side power switch is optimized for both self-powered and bus-powered applications, and other 3V to 5V 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 5µs, preventing system shutdown and restart, built-in output-discharge functionality, low on-resistance of 110mΩ over 1A continuous load, reverse-current blocking and output over-voltage 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.
