ESD protection with TVS diodes

[rudie]

hello guys,

For a device i am designing there is a need for a ESD protecting circuit. I have no experience with esd protection circuitery. So i was hoping someone could help me with this. I need esd protection on a DC signal that is max 10V and minimum 0V. I was looking on the internet for some ic that can manage that. I saw some terms that i didn't quite understand:

- non-repetive peak reverse voltage
- reverse voltage
- working reverse voltage
- stand-off voltage
- voltage breakdown
- voltage clamping

I hope that someone can explain these terms to me. Or does someone maybe have an advice of which circuit or ic I should use.

greets Rudie

 

[mister_rf]

First of all some articles to read about ESD, TVS diodes
https://www.semtech.com/pc/downloadDocument.do?navId=H0,C1,C157,C158,P1467&id=471
https://www.semtech.com/pc/downloadDocument.do?navId=H0,C1,C157,C158,P1467&id=514
https://www.semtech.com/pc/downloadDocument.do?navId=H0,C1,C157,C158,P1467&id=515

https://www.semtech.com/pc/downloadDocument.do?navId=H0,C1,C157,C158,P1467&id=516
https://www.semtech.com/pc/downloadDocument.do?navId=H0,C1,C157,C158,P1467&id=511
https://www.semtech.com/pc/downloadDocument.do?navId=H0,C1,C157,C158,P1467&id=509
https://www.semtech.com/pc/downloadDocument.do?navId=H0,C1,C157,C158,P1467&id=510
https://www.semtech.com/pc/downloadDocument.do?navId=H0,C1,C157,C158,P1467&id=512

https://www.onsemi.com/pub_link/Collateral/AND8232-D.


- non-repetitive peak reverse voltage/peak pulse current
This is maximum permissible surge voltage/current witch the device can withstand without damage.

- reverse voltage, - stand off voltage
This is the normal operating voltage.
At this point the device appear as a high impedance to protected circuit.

- working reverse voltage- voltage breakdown
maybe Reverse Breakdown Voltage= this is the point where the device begin to conduct in avalanche mode and becomes a low impedance path for the transient.

- voltage clamping
Maximum voltage drop across the TVS for a particular peak pulse current.