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STSPIN32G4 demonstration board for three-phase brushless motors

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Parameter NameParameter Value
Target Application3-phase Field Oriented Control (FOC)
Core ProductSTSPIN32G4
ECCN US3A991.a.2
Packing TypeNot Applicable
RoHs compliantEcopack1
Package NameCARD

The EVSPIN32G4 is a demonstration board based on the STSPIN32G4 system in package and STL110N10F7 power MOSFETs. The STSPIN32G4 integrates in a 9x9 mm VFQFPN package, a triple high-performance half-bridge gate driver with a rich set of programmable features and one mixed signal STM32G431 microcontroller.

The integrated operational amplifiers for current sensing, the drain-source voltage sensing of each power MOSFET and comparators for overcurrent protection make it a fully integrated solution for motor control.

Thanks to the integrated voltage regulators both the gate driver and control logic supplies can be generated starting from the motor supply without dedicated circuitry.

The board ensures a full evaluation of the STSPIN32G4 and is designed for driving three-phase brushless DC motors and provides an easy-to-use solution for STSPIN32G4 evaluation in different applications such as power tools, e-Bikes, fans, and home appliances.

The board can be configured in three-shunt or single-shunt supporting both sensor-less and sensor-based control algorithms.

The Arduino connector enables the EVSPIN32G4 to be interfaced with expansion boards, such as MEMS sensors or Bluetooth transceivers, while predisposition for CAN bus allows interconnection with master or slave modules to build complex motion control systems.

The on-board ST-LINK/V2 programmer speeds up and simplifies the debugging of microcontroller firmware.

Key features
  • Input bus voltage from 10 V to 75 V with dedicated monitoring
  • Power stage based on the STL110N10F7 power MOSFETs with output current up to 20 Arms (with heatsink mounted) and protected to overcurrent conditions
  • STSPIN32G4, high performance three-phase motor controller with embedded STM32G431 MCU:
    • 32-bit ARM® Cortex®-M4 MCU+FPU
    • Up to 170 MHz clock frequency
    • CORDIC mathematical hardware accelerator for trigonometric functions
    • 128 kB Flash memory with proprietary code readout protection (PCROP), securable memory area, 1 kB OTP
    • 32 kB SRAM memory with HW parity check
    • 2 x advanced timers for motor control, 16-bit with up to 6 x PWM channels each
    • 8 x general purpose timers
    • 2 x ADCs 12-bit resolution (up to 19 channels) with 4 Msps conversion rate
    • 4 x 12-bit DAC channels
    • 4 x ultra-fast rail-to-rail comparators
    • 3 x rail-to-rail operational amplifiers usable also in PGA mode
    • Internal high precision voltage reference
    • Up to 40 GPIOs
    • Full set of interfaces: I2C, SPI, UART and CAN
    • VCC buck converter up to 200 mA, with programmable output and embedded MOSFET
    • 3.3 V LDO linear regulator up to 150 mA
    • Low quiescent linear regulator for MCU supply in standby mode
    • Regulators with full set of protection features; thermal shutdown, short-circuit and overload protections
    • 75 V rated gate drivers with 1 A sink/source current and embedded bootstrap diodes
    • Drain-source voltage sensing of each power MOSFET
  • Three-shunt or single-shunt configurable current sensing
  • Digital Hall sensor and quadrature encored input
  • ST-LINK/V2 programmer and debugger
  • Arduino UNO connector
  • Predisposition for CAN bus
  • NTC sensor for power stage temperature monitoring