LM2901B: Do we have input TVS protection(integrated fail-safe) for LM2901B?

The input pins of the LM2901B are independent of the power supply. See [FAQ] Can the input voltage (Vi) to my logic device be higher than the supply voltage (Vcc)?

Happy New Year to both of you.  Thanks Clemens for your continued support and Bowen for your answer.

Bowen

As Clemens has mentioned, the LM2901B and all the family members are fail safe up to the process limit.  This is what we refer to as fail safe, so you can proceed with recommending this device.  If the device were not fail safe, the abs max table would have stated VCC + 0.3V for example (max referenced to the VCC pin) instead of an absolute number.

Thanks for your support of the forum.

Chuck

The LMxxxLV devices use a completely different architecture, so this is not guaranteed.

There is ESD protection, but its characteristics are not specified, beyond the JEDEC specifications in the datasheet.

Hi Bowen,

The original LM2901/3 did not have dedicated ESD structures. Any 'protection" was just the "toughness" of the 50 year old process.

The new LM2901/3 "B" devices have a dedicated ESD structure to increase the robustness.

As Clemens said, there is a similar, but not identical ESD structure in the "B" devices and the "LV" devices. Both are snap-back types to allow the inputs to go above the supply w/o damage.