SLVSC54B July 2013 – April 2014 TPD4E110
TPD4E110 is a diode array type Transient Voltage Suppressor (TVS) which is typically used to provide a path to ground for dissipating ESD events on hi-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.
For this design example, use the following as the input parameters.
|DESIGN PARAMETER||EXAMPLE VALUE|
|Signal range on Pin 1, 2, 3, or 4||0V to 5.5V|
|Operating Frequency||3.0 GHz|
To begin the design process some parameters must be decided upon. The designer needs to know the following:
TPD4E110 has 4 identical protection channels for signal lines. The symmetry of TPD4E110 provides flexibility when selecting which of the 4 IO channels will protect which signal lines. Any IO will support a signal range of 0V to 5.5V.
The 0.45pF capacitance of each IO channel supports data rates up to 6Gbps.