One question, should I look for 5V in Vgs or Vgs threshold?

Neither.
You look for that Vgs where they specify the on-resistance (Rds) in the data sheet.

 

Neither.
You look for that Vgs where they specify the on-resistance (Rds) in the data sheet.

Ok, I see, if Rds is very low at an Vgs = 5V, then the Transistor is logic level, so what Vgs and Vgs(th) stands for?

 

I see, if Rds is very low at an Vgs = 5V,

You look where they show the Rds(on) value in the data sheet (example below).

what Vgs and Vgs(th) stands for?

Vgs is the MOSFET gate to source voltage.
Vgs(th) is the Vgs threshold voltage (voltage at which the MOSFET just starts to conduct.
They use an Id value of 250μA conduction current in the example below.

Note that this is much less than the Id they use for specifying the on-resistance.

 

One question, should I look for 5V in Vgs or Vgs threshold?

Look at Vgs threshold voltage in the datasheet. It is when the DS current is almost nothing at 0.25mA. Don't you want the Mosfet to conduct A LOT MORE current? The threshold voltage is when a Mosfet is almost turned off.

 

You look were they show the Rds(on) value in the data sheet (example below).
Vgs is the MOSFET gate to source voltage.
Vgs(th) is the Vgs threshold voltage (voltage at which the MOSFET just starts to conduct.
They use an Id value of 250μA conduction current in the example below.

Note that this is much less than the Id they use for specifying the on-resistance.

View attachment 235403

I see thanks

 

Below is a simple way to drive an H-bridge from a 5V signal (assuming the bottom N-MOSFETs are logic-level type) with a 12V supply.

View attachment 235396.

Hey! Just came here to tell you that my final h-bridge will be like this one (but I'll use IRF9530 and IRLZ44N)! Maybe when I get my circuit phisically done I'll show you some pictures, thanks!