Could you advice me about the FOC, below is a project inform.
Application : ESC Drone
Supply Voltage : 48V
Current : 60A
Motor Control Concept : PWM Speed Control and Sensorless FOC Control
Please let me know if your KV4x or KV5x solution supports sensorless FOC function for motor control.
If not supported, please let me know which product is a solution that supports sensorless FOC and PWM speed control with the above specifications.
If you are interested on the KV family for your implementation, Application Note 5237 (AN5237, link below) may be of use as a starting point for your own motor control application.
I hope that this information helps.