Amplifier construction with integrated STA516BE

Hello!

I want to ask you some advice in building a class D amplifier using the integrated circuit STA516BE

From the information provided by the integrated datasheet, I am misled by some features.

I want to use figure no. 8 (dual BTL) for speakers with an 8 ohm impedance

I don't understand the configuration of pins 25 and 28 (PWRDN / TH_WAR) - do I have to make other changes to the diagram to make the amplifier work?

How many amps does the amplifier consume? (how many amps should the source / transformer be)

What is the recommended voltage for the 8 ohm load? (52V or 65V)

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