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Part Number: ISO7731-Q1
My customer have some question about output state in transition from PU to PD at vcco for ISO77xx family.
I show their block diagram and the timing chart that they are concerned as follows.
Vcci in ISO77xx is the same power rail as MCU.
Vcco in ISO77xx is the different power rail as LIN Transceiver.
Vcci = PU
ENx = Open
INx = High
Vcco = PU -> PD -> PU
In this case, they want to keep high on the OUTx.
Zone 1 : OUTx = High (However, the OUTx high level depend on Vcco voltage.)
Zone 2 : ??? (I think it is not made Low state and High-Z state.)
Zone 3 : OUTx = High (However, the OUTx high level depend on Vcco voltage.)
Is "Undetermined" listed in D/S (SLLSEU3A) P.20 Table 2 the meaning as "Undefined" ?
In what kind of state will the OUTx be in Zone 2 ?
Is there a way to maintain the OUTx in the state of High in Zone 2 ?
(I accept that it depend on Vcco voltage.)
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In reply to Koteshwar Rao:
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