New six-line TVS protection device for USB 3.0 interfaces

Designed to protect the USB 3.0 interface in computing and mobile devices from electrostatic discharge (ESD) events, Semtech has introduced the RClamp3346P, a high-performance ultra low-capacitance transient voltage suppression (TVS) device. The RClamp3346P supplements Semtech’s current USB protection portfolio by providing ultra-low clamping voltage performance and low dynamic resistance in an easy-to-lay-out package. Current USB 3.0 protection schemes usually call for multiple TVS devices, complicating the design and final bill of materials. The RClamp3346P replaces up to 6 discrete and protects the SuperSpeed pairs plus the high-speed signal lines in a slim 2.7mm x 0.8mm package. Built on Semtech’s highly differentiated SCR process technology, the RClamp3346P achieves the industry’s lowest overall clamping voltage without impacting the signal quality. Designed to meet the high operating data rate of the USB 3.0 interface, the device introduces less than 0.65pF capacitance into the signal path. “A major trend with the newest generation of controllers is the increased ESD sensitivity due to shrinking process geometry.” said Rick Hansen, product marketing director for protection products, Semtech. “We believe the RClamp3346P is the perfect solution, giving designers peace of mind knowing the system is well protected from ESD transients.” The RClamp3346P is also qualified to grade 1 of the AEC-Q100 automotive reliability standard in order to provide the highest level of component reliability.