Motor Control Nucleo Pack with NUCLEO-G431RB and X-NUCLEO-IHM16M1

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Parameter NameParameter Value
ECCN US3A991.a.2
Packing TypeNot Applicable
RoHs compliantEcopack1
Package NameCARD

The P-NUCLEO-IHM03 STM32 motor-control pack is a kit composed of the X-NUCLEO-IHM16M1 board, the NUCLEO-G431RB board, a brushless Gimbal motor (GBM2804H-100T), and the DC power supply.

This platform provides a motor-control solution for three-phase, low-voltage and low-current DC brushless or PMSM motors. It is based on the STSPIN830 driver and on the STM32G431RB MCU.

The STSPIN830 is a compact and versatile FOC-ready driver for a three-phase motor. In a very small 4 x 4 mm QFN package, it integrates both the control logic and a fully protected low-RDSon triple-half-bridge power stage. It supports both single- and three-shunt architectures and embeds a PWM current controller based on user-settable values of reference voltage and OFF time. Thanks to a dedicated MODE input pin, the device offers the freedom to decide whether to drive it through 6 inputs (one for each power switch) or a more common 3 PWM direct-driving inputs.

The STM32G431RB is a 32-bit microcontroller based on a high-performance Arm® Cortex®-M4 32-bit RISC core, with floating point unit (FPU), operating at a frequency of up to 170 MHz, embedding an advanced analog peripheral set.

The X-NUCLEO-IHM16M1 board is fully configurable and ready to support different closed-loop control, FOC or 6-steps, based on sensorless or sensor mode. It is compatible with three shunts or single shunt for current-sense measurement.

The NUCLEO-G431RB board provides an affordable and flexible way for users to try out new concepts and build prototypes with STM32G4 microcontroller. It does not require any separate probe as it integrates the STLINK-V3E debugger and programmer.

Key features
    • Three-phase driver board for BLDC/PMSM motors based on STSPIN830
    • Nominal operating voltage range from 7 V dc to 45 V dc
    • Output current up to 1.5 A rms
    • Over-current, short-circuit, and interlocking protections
    • Thermal shutdown and under-voltage lockout
    • BEMF sensing circuitry
    • Support of 3-shunt or 1-shunt motor current sensing
    • Hall-effect-based sensors or encoder input connector
    • Potentiometer available for speed regulation
    • Equipped with ST morpho connectors
    • STM32G431RB 32-bit microcontroller based on the Arm® Cortex®-M4 core at 170 MHz in LQFP64 package with 128 Kbytes of Flash memory and 32 Kbytes of SRAM
    • Two types of extension resources: Arduino™ Uno V3 expansion connector ST morpho extension pin headers for full access to all STM32 I/Os
    • On-board STLINK-V3E debugger/programmer with USB re-enumeration capability: mass storage, Virtual COM port, and debug port
    • 1 user and 1 reset push-buttons
  • Three-phase motor:
    • Gimbal motor: GBM2804H-100T
    • Maximum DC voltage: 14.8 V
    • Maximum rotational speed: 2180 rpm
    • Maximum torque: 0.981 N·m
    • Maximum DC current: 5 A
    • Number of pole pairs: 7
  • DC power supply:
    • Nominal output voltage: 12 V dc
    • Maximum output current: 2 A
    • Input voltage range: from 100 V ac to 240 V ac
    • Frequency range: from 50 Hz to 60 Hz