Date: 19/09/2011

USB 2.0 protection device for portable apps

Texas Instruments Incorporated has released a USB protection device integrating four types of USB 2.0 chip protection in a single package. The TPD4S014 protects against electrostatic discharge (ESD). Whenever the device junction temperature exceeds 150 degrees Celsius, the switch turns off to the power rail, thus protecting against over-temperature conditions. To protect the power rail from a moving voltage line, the load switch in the TPD4S014 immediately opens, preventing under- or over-voltage if the power supply rail drops lower than 2.8 V or higher than 6.15 V.

The TPD4S014 is suggested for cell phones, e-books, portable media players and digital cameras, tablets, embedded computing, portable navigation, portable land surveying, and portable test and measurement.

The key specifications and features of TPD4S014 include:
Offers protection for all four High-Speed USB (USB 2.0) channels: D+, D-, VBUS and ID.
Complies with the highest level of ESD protection, with immunity of +8-kV contact discharge and +15-kV air-gap discharge per IEC61000-4-2 system-level ESD immunity testing.
Compatible with both Full Speed and High Speed, supporting data rates of up to 480 Mbps.

Availability and pricing: The TPD4S014 is available in 10-pin, 4-mm2 DSQ SON package and is in full production now. The suggested resale price of $0.55 in quantities of 1,000.