BLDC Motor using STSPIN32G4

[far28]

Hello,

 

I am designing a custom 3-phase brushless DC motor controller based on the STSPIN32G4 integrated driver. The target application operates at 24V DC with a continuous output power of 350W (approximately 15A RMS continuous current). The hardware is designed to support evaluation of both sensorless FOC algorithms and sensored Hall effect positioning.

 

Could you please verify the following parameters in my attached KiCad schematic:

1. Operational Amplifier Configuration: Are the internal op-amp pins configured correctly for 3-shunt low-side current sensing matching the STSPIN32G4 internal matrix rules?

2. Sensored/Sensorless Support: Are the analog filtering assets for BEMF decoding and the digital lines for the Hall sensor interfaces correctly assigned to the internal MCU pins?

3. Power Stage Safety: Given a 350W load profile, are the bootstrap capacitor selections and gate drive configurations adequate to handle the current switching transients safely?

 

Target Specifications:

- Controller IC: STSPIN32G4

- Bus Voltage: 24V DC

- Target Power: 350W (15A continuous, ~30A peak)

- Control Scheme: Configurable for Sensorless FOC and Sensored Hall feedback.