TCA9406 B Port ESD Rating

PowerGuy

Other Parts Discussed in Thread: TCA9406

On the spec for TCA9406, it says Port B is rated at 8KV Human Body Model(A114-B).
Does this mean this IC can take 8KV contact discharge per IEC 61000-4-2 ?

thank you.

over 9 years ago

0 Rajan Arora over 9 years ago

TI__Intellectual 2175 points

Hi,

The HBM rating for B-port Is 8kV. The CDM rating for both A- and B-ports is 1.5kV.

Thanks,

Rajan

0 Jonathan Valdez over 9 years ago

TI__Genius 16510 points

Hello User,

Thanks for your question.

HBM and IEC 61000-4-2 are two very different ESD tests. The IEC test contains much more energy content for a given voltage than HBM does.

So, No, the TCA9406 is not tested for IEC 61000-4-2 8kV contact discharge. Typically, a general derating we see for HBM -> IEC is roughly 50%. This is of course only a general guide line and not guaranteed, but for example, we would normally see a 8 kV HBM ESD setup handle roughly 4 kV contact IEC ESD.

0 PowerGuy over 9 years ago in reply to Jonathan Valdez

Intellectual 415 points

thank you!

Interface

Interface forum

TCA9406 B Port ESD Rating