Hello!
I met a strange problem with this IC. It works fine but doesn't shut down when pulling pin 10 (SS) down to ground. Even if I do it just by shortening it with a wire.
It works fine in the other project. The only difference is that it is supplied by 24V at pin Vin. In the problem project Vin and Vss are connected and supplied by 12V. But it seems this is not the reason.
The artwork is straightforward. Everything is close to the IC. Capacitors are present. 4-layer PCB so it's OK with groundplanes etc. I spent a week already, changed several ICs but still at a loss.
No I am not a novice :)