TLV740P: EN pin is Schmitt trigger input?

Hideki Hayashi1

Expert 6590 points

Part Number: TLV740P
Other Parts Discussed in Thread: TLV743P, , TLV733P

Hi team,

Do TI LDOs, especially TLV740P, TLV743P, TLV733P, have EN pins with Schmitt trigger input? (=Hysteresis input)

Best regards,

Hideki

over 2 years ago

0 Jimmy Loud over 2 years ago

TI__Expert 3390 points

Hey Hideki,

The EN hysteresis for these devices can be found in the device datasheets.

From the TLV740P datasheet TLV740P 300-mA, Low-Dropout Regulator With Foldback Current Limit datasheet (Rev. A) (ti.com)

The hysteresis looks like this:

I hope this helps!

Thanks,

-Jimmy

0 Hideki Hayashi1 over 2 years ago in reply to Jimmy Loud

TI__Expert 6590 points

Hi Jimmy,

I was understanding as Vlo and VHigh means a threshold of logic low and logic high. So if the voltage applied to EN pin ranges between Vlo and Vhigh, the state is indefinite.

Let me confirm Vhigh and Vlow exactly means a "rising" threshold and "falling" threshold, right?

Best regards,

Hideki

0 Jimmy Loud over 2 years ago in reply to Hideki Hayashi1

TI__Expert 3390 points

Hey Hideki,

Yes this is correct!

I hope this helps!

Thanks,

-Jimmy

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TLV740P: EN pin is Schmitt trigger input?