Question

what is drain opene????​

Answer 1

HEY FREIND:)

An open-drain or open-collector output pin is driven by a single transistor, which pulls the pin to only one voltage (generally, to ground). When the output device is off, the pin is left floating (open, or hi-z).

Answer 2

The term 'opene drain:' means there's a cutting sink but on a FET device FOR ex MOFET