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TPD2S017

SLLS949B – SEPTEMBER 2009 – REVISED DECEMBER 2015

www.ti.com

8.2.2 Detailed Design Procedure

To begin the design process, some parameters must be decided upon; the designer should make sure:

•

go below one forward diode drop below the ground.

•

•

IEC 61000-4-2 protection requirement is covered by the IEC performance of the TVS diode.

For this application, a high speed USB 2.0 signal that ranges from –10 mV to 440 mV will be applied to each line.

and the TPD2S017 will stay passive and low leakage during normal operation.

Next, consider the data rate of this signal and ensure that the TVS I/O capacitance will not distort this signal by

filtering it. The speed of a USB 2.0 high-speed signal is 480 Mbit/s. With TPD2S017's ultra low IO capacitance,

this device can support 1.5 Gbit/s data rate and thus can pass USB 2.0 high-speed signal with minimal distortion.

Finally, TPD2S017 is rated for the IEC 61000-4-2 (Level 4) so it provides sufficient system-level ESD protection

to the human interface in this application. See Layout Example for instructions on properly laying out TPD2S017.

8.2.3 Application Curves

Figure 7. IEC Clamping Waveforms

Figure 8. IEC Clamping Waveforms

8-kV Contact, 1-GHz Bandwidth

–8-kV Contact, 1-GHz Bandwidth

8

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