TPS22967: ESD issue

Part Number: TPS22967

Hi there,

I'm having an issue with the TPS22967DSGR after an ESD discharge.

Here are the details of the ESD discharge:
+/-4kV conductive discharge on an exposed pad near the TPS22967;
using the NSG 435 ESD simulator set for a single discharge (IEC 61000-4-2 Level 2)

Although the issue doesn't always appear after the ESD discharge, the result is that the loads switch activates and the voltage on pin 3 (ON control logic) latches to 2.1V and stays there regardless on any input. The part resumes to normal behavior only after a power reset.

I've added extra ESD protection diode to that pin, but the behavior, although less frequent, still appears.

Do you have an idea of what could be causing this issue?


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