Any other chips this sensitive to ESD?

[cupoftea]

Pg 40 of this TPS57040 chip datasheet says...

"These devices have limited built-in ESD protection"

Ive never heard of any other chip datasheet saying this. Have you?
Is their a whole cohort of chips which are super sensitive to static?

I've never seen the above written on a microcontroller datasheet

TPS57040

https://www.ti.com/lit/ds/symlink/tps57040-q1.pdf?ts=1645092614483&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTPS57040-Q1

 

[crutschow]

They are probably just being cautious.
All built-in EST protection for CMOS chips is limited.

 

[betwixt]

Of course it may not be CMOS at all.
When "limited ESD protection" is written it usually means a pin can withstand voltages higher than its supply voltage. In other words there is nowhere for input clamp diodes to conduct to. It is quite common in 1.8/3.3V powered MCU when they have 5V tolerant input pins and the usual protection diodes are omitted. It is less common in other devices but probably for the same reason.

Brian.

 

[dick_freebird]

Not surprising to me. Many old bipolar linear had no designed ESD protection at all. I once worked on a RF SOI mixer (FET-quad) that had none, and a 10V (yes) ESD failure threshold.