Help identifying gate driver IC

[Troy Dionne]

Sundown Audio NS-1. Output driver board. Need a part number for this gate driver IC (U7). Thank you very much.

 

[Perry Babin]

Unless something has changed recently, all of the large ICs are either the IR21844S or the IRS21844S. The IRS version is the newer version.

 

[Troy Dionne]

Perry, do you have any schematics for this driver board? I have a generic schematic for the mainboard and P.S. driver board, but it simply shows the pins of the output driver board and end there. Not the board itself.

I have your repair manual, Ive searched through a little and didn't see one in there, but im the first to admit I usually miss the things right in front of my face fairly often.

 

[Perry Babin]

The smaller 2-ic board is on the class d type-3. They're very similar.

Make sure that you check the driver IC to confirm that it was not damaged during installation. That seems to be a big problem, that and people buying the ICs from distributors that don't store and package them properly.

 

[Troy Dionne]

Ok thank you