There is no output voltage on both channels, but there is voltage on the output of powerGood.Could this be a consequence of a forgotten resistor on the Rfreq pin? I don’t understand how PG can be, but there is no output voltage.
You are right. CPWR provides power to control circuit and it needs to be connected to Vin. A frequency set resistor is also needed at the FREQ pin. DRVCC pin needs a 4.7uF decoupling cap that puts close to this pin.