Need Clarification On The Relationship Between INPUT and OUTPUT Pins for VNQ9025AJ

[PMI]

I know this is a really dumb question, but I cannot find a definitive answer in the datasheet for the VNQ9025AJ, Quad channel high-side driver with Current Sense analog feedback for automotive applications.

There are 4 pins called INPUT0 to INPUT3. There are 4 output pins called OUTPUT0 to OUTPUT3. I just want to verify that when INPUT0 goes to a logic 1 value, that OUTPUT0 is activated (i.e. current is flowing).

I would also like to know if the input/output relationships are independent of each other. In other words, can I have INPUT0 and INPUT1 high at the same time with current flowing in OUPUT0 and OUTPUT1 at the same time? Or, can there only be one active input/output pair at a time?

The datasheet says

"Voltage controlled input pin with hysteresis, compatible with 3 V and 5 V CMOS outputs; controls output switch state."

"controls output switch state" is a bit vague, IMO. it is also confusing to see the 4 CS output states controlled by 2 multiplexed control lines, whereas the 4 output lines seem to be controlled by 4 input lines.

[Peter BENSCH]

Welcome @PMI, to the community!

Unfortunately, you have allowed yourself to get a little confused while reading the data sheet of the VNQ9025AJ:

• IN0...IN3 each control their assigned output OUT0...OUT3 independently of each other. So yes, when INPUT0 gets a logical value of 1, OUTPUT0 is activated (i.e. current is flowing). The same happens independently of each other with IN1/OUT1, IN2/OUT2 and IN3/OUT3.
  
• 'controls output switch state' only appears in connection with IN0...3 and means exactly what has just been said. The term ‘switch state’ refers to the state of the MOSFET on the respective channel. The multiplexer for the Current Sense function is controlled by SEL0 and SEL1, so you first have to select the respective channel to get the value of the current flowing there.

I hope I have helped to clarify some of the unanswered questions?

Regards
/Peter