TPD1E6B06_15 Datasheet, PDF (9/16 Pages) Texas Instruments – Single-Channel ESD Protection Diode in 0201 Package

www.ti.com
TPD1E6B06
SLLSEB2E – FEBRUARY 2012 – REVISED OCTOBER 2015
• IEC 61000-4-2 protection requirement is covered by the IEC performance of the TVS diode.
For this application, the audio signal voltage range is –3 V to 3 V. The V_RWM for our TVS is –5 V to 5 V;
therefore, our bidirectional TVS will not break down during normal operation, and therefore normal operation of
our audio signal will not be effected due to the signal voltage range. Note that in this application, a bidirectional
TVS like TPD1E6B06 is required.
Next, consider the frequency content of this audio signal. In this application with the class AB amplifier, the
frequency content is from 20 Hz to 20 kHz; ensure that the TVS I/O capacitance will not distort this signal by
filtering it. With TPD1E6B06 typical capacitance of 6 pF, which leads to a typical 3-dB bandwidth of 700 MHz,
this diode has sufficient bandwidth to pass the audio signal without distorting it.
Finally, the human interface in this application requires standard Level 4 IEC 61000-4-2 system-level ESD
protection (±8-kV Contact/ ±15-kV Air-Gap). TPD1E6B06 can survive ±15-kV Contact/ ±15-kV Air-Gap, which
indicates that our device can provide sufficient protection for the interface. For any TVS diode to provide its full
range of ESD protection capabilities, as well as to minimize the noise and EMI disturbances the board will
undergo during ESD events, it is crucial that a system designer uses proper board layout of their TVS ESD
protection diodes. For instructions on properly laying out TPD1E6B06, see Layout.
8.2.3 Application Curves
Figure 11 and Figure 12 are captures of the voltage clamping waveforms of TPD1E6B06 during a +8-kV Contact
IEC 61000-4-2 ESD strike and a -8-kV Contact IEC 61000-4-2 ESD strike, respectively, in a typical application
with proper board layout.
90
80
70
60
50
40
30
20
10
0
-10
-15 15 45 75 105 135 165 195 225
Time (ns)
D001
Figure 11. IEC 61000-4-2 ESD Clamp Voltage +8-kV
Contact ESD
10
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-15 15 45 75 105 135 165 195 225
Time (ns)
D001
Figure 12. IEC 61000-4-2 ESD Clamp Voltage -8-kV Contact
ESD
Copyright © 2012–2015, Texas Instruments Incorporated
Product Folder Links: TPD1E6B06
Submit Documentation Feedback
9