ADuM4122

FGarcia255 on Jan 21, 2020

Hello ,

I want to use ADuM4122 to switch loads or make shorts to GND or battery -- steady state not constant frequency--, but my question is if it can handle DC input at pin3;

I have simulated and it seems it works, so what is behind the ADuM to be able to handle DC input - as it seems it uses "transformers" inside and it suppose to handle only AC inputs -- i.e square control signals of certain frequency

Top Replies

RSchnell
Jan 21, 2020 +2 verified
Hello,

The ADuM4122 is capable of holding the output of Vout and Vout_SRC high or low indefinitely. The internal iCoupler transmission transfers the data across the barrier, and allows for DC operation…
FGarcia255 Jan 21, 2020 in reply to RSchnell +1

Thank you RSchnell,

My mistake R2 connection, the idea was to put R2 in series to gate´s.to see SR control.

I see, ADuM4120 seem a better option.

Thank you.