STMicroelectronics EVSPIN32G4

Overview

EVSPIN32G4 from STMicroelectronics is a demonstration board for three-phase brushless DC motor control, built around the STSPIN32G4 System-in-Package (SiP) and six STL110N10F7 100 V, 5 mΩ N-channel MOSFETs. It delivers up to 20 Arms continuous output current with heatsink, integrates an STM32G431 ARM Cortex-M4 MCU (170 MHz, 128 kB Flash, 32 kB SRAM), and supports three-shunt or single-shunt current sensing for sensorless or Hall/encoder-based control in power tools, e-bikes, and home appliances.

For engineers reviewing the EVSPIN32G4 datasheet, EVSPIN32G4 pinout, EVSPIN32G4 application, or EVSPIN32G4 equivalent, this board enables rapid evaluation of integrated gate driving, analog signal conditioning (4× comparators, 3× op-amps, 2× ADCs), CAN FD interface (TCAN330D), Arduino UNO compatibility, and on-board ST-LINK/V2 debugging - all from a single 10–75 V input bus.

Technical Context

The EVSPIN32G4 implements a complete motor control reference design: the STSPIN32G4 SiP combines triple half-bridge gate drivers (75 V rated, 1 A sink/source), embedded STM32G431 MCU, and analog front-end (V_DS sensing, shunt amplification, overcurrent protection via comparators). Power stage uses discrete STL110N10F7 MOSFETs in 6-pack configuration with 10 mΩ shunt resistors and thermal monitoring via NTC.

Control flexibility is enabled by configurable current sensing topology (three-shunt or single-shunt), digital Hall/quad encoder inputs, programmable VCC buck (200 mA) and 3.3 V LDO (150 mA), and dual-regulator standby mode. The board exposes all critical MCU peripherals - including CAN FD transceiver (TCAN330D), USB-to-UART bridge, and SWD debug interface - through standardized headers.

Key Specifications

Availability

EVSPIN32G4 is available at Aetrix Electronics and suitable for industrial automation, home appliance development, and e-bike motor control requiring stable component supply, full evaluation capability, and production-ready reference design validation.

Supply support for EVSPIN32G4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and analog/mixed-signal devices for industrial, automotive, and consumer markets.

The EVSPIN32G4 belongs to ST's SPIN motor control evaluation platform family, engineered to accelerate development of high-efficiency, compact, and cost-optimized three-phase BLDC drives for power tools, HVAC fans, robotics, and white goods.

FAQ

What is the difference between EVSPIN32G4 and EVSPIN32G4NH?

The EVSPIN32G4 includes an integrated heatsink (RAWA410-0) enabling 20 Arms continuous output current at 25°C ambient, while the EVSPIN32G4NH omits the heatsink and is rated for 15 Arms continuous. Both share identical schematics, firmware compatibility, and pinout - the NH variant targets space-constrained or lower-power evaluations where thermal derating is acceptable.

Does EVSPIN32G4 support sensorless FOC control?

Yes. The board supports sensorless field-oriented control using the STSPIN32G4's embedded STM32G431 MCU, dual 12-bit ADCs (4 Msps), and hardware-accelerated CORDIC engine. Three-shunt current sensing and V_DS monitoring provide sufficient phase current and back-EMF data for observer-based algorithms, validated in ST's X-CUBE-MCSDK.

Can the onboard CAN transceiver operate at CAN FD speeds?

Yes. The TCAN330D transceiver supports CAN FD (Flexible Data Rate) up to 5 Mbps, with separate arbitration and data phase clocking. It interfaces directly with the STM32G431's CAN peripheral and is configured for 3.3 V logic levels, matching the MCU's I/O voltage - no level-shifting required.

Is Arduino connector functionality fully mapped to STM32G431 peripherals?

Yes. All Arduino UNO R3 pins are electrically connected to corresponding STM32G431 GPIOs, timers, ADCs, and communication peripherals - including TIM3_CH2 (D2), SPI1 (D13/D12/D11), I2C1 (A5/A4), UART1 (D0/D1), and analog inputs A0–A5 routed to PA0–PA5 and PC0–PC5. No signal translation or multiplexing is required.