SLVS953B June 2009 – August 2015 TPD2E009
Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality.
The TPD2E009 device is a diode-array type TVS typically used to provide a path to ground for dissipating ESD events on high-speed signal lines between a human-interface connector and a system. As the current from ESD passes through the TVS, only a small voltage drop is present across the diode. This is the voltage presented to the protected IC. The low RDYN of the triggered TVS holds this voltage, VCLAMP, to a tolerable level to the protected IC.
The TPD2E009 device is typically used to protect a single high-speed differential pair. Multiple TPD2E009 devices can be used to provide protection for connectors with multiple differential data lanes. This example is applicable to many interface types including:
For this design example, TPD2E009 is used to protect any differential data pair meeting the design requirements shown in the following table.
|Maximum signal range on D+ and D–||0 V to 5.5 V|
|Maximum Operating Frequency||3 GHz|
To begin the design process, some parameters must be decided upon; the designer must know the following: