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LTC2966 ltspice result under VinA =VinB=0

Question asked by m-kun on Jul 31, 2018
Latest reply on Aug 2, 2018 by Manpreet

Hi

I have quetion for  LTspice simulation result. 

Condition is reference circuit.(open this macromodel's fixture in LTC2966)

VinA=VinB=GND

 

result:

OUTA=Low 

OUTB=Low

 

But  under VinA=VinB=0V ,this IC don't have supply and can't turn on OUTA,OUTB's MOS.

I think OUTA,OUTB=pullup 5V (Hi-Z) is correct.

 

Do LTC2966 have parameters below UVLO (below Logic off voltage)?

 

Best regards 

Thank you very much.

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