STMicroelectronics STEVAL-CTM012V1

Overview

STEVAL-CTM012V1 from STMicroelectronics is a ready-to-use three-phase inverter evaluation board built around the STSPIN32F0601Q intelligent motor controller (600 V gate driver + Arm® Cortex®-M0 MCU) and STD8N60DM2 600 V/8 A MDmesh™ DM2 MOSFETs. It delivers >97.0% inverter efficiency at 3000 rpm, supports sensorless field-oriented control (FOC) for PMSM/BLDC motors, and targets 250 W compressor applications with mains input.

For engineers reviewing the STEVAL-CTM012V1 datasheet, STEVAL-CTM012V1 pinout, STEVAL-CTM012V1 application, or STEVAL-CTM012V1 equivalent, this board enables rapid validation of high-efficiency, compact inverter designs for refrigerator compressors, industrial pumps, fans, and appliance motor drives - with on-board +15 V/+3.3 V power supply, SWD/UART interfaces, and jumper-configurable one- or two-shunt current sensing.

Technical Context

The board implements a complete motor drive system: the STSPIN32F0601Q integrates a 600 V three-phase gate driver, hardware dead-time insertion, and an STM32F031K6T6 MCU running X-CUBE-MCSDK firmware. Sensorless FOC operates in either one-shunt or two-plus-one-shunt topology, selected via onboard jumpers (SR1/SR2).

Power conversion includes a VIPER122-based buck converter generating regulated +15 V (for gate drivers) and +3.3 V (for MCU/peripherals), while the inverter stage uses six STD8N60DM2 MOSFETs in DPAK package with 550 mΩ R_DS(on) typ. at V_GS = 10 V. Motor phase voltage sensing and shunt current measurement are supported via dedicated op-amp conditioning (TSV912ID).

Key Specifications

Availability

STEVAL-CTM012V1 is available at Aetrix Electronics and suitable for refrigerator compressor development, industrial pump control, and BLDC fan motor prototyping requiring stable component supply and validated firmware integration.

Supply support for STEVAL-CTM012V1 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 solutions for industrial, automotive, and consumer markets.

This board belongs to ST's motor control evaluation platform family, engineered to accelerate adoption of high-efficiency, sensorless FOC algorithms for permanent magnet and brushless DC motors in white goods and industrial equipment.

FAQ

What firmware is preloaded or supported on the STEVAL-CTM012V1?

The board does not ship with preloaded firmware but is designed for STSW-CTM011 - a dedicated firmware example for compressor motors - running on X-CUBE-MCSDK. Users compile and flash via STM32CubeIDE using the included B-STLINK-ISOL and STLINK-V3SET debuggers. Firmware supports both one-shunt and two-plus-one-shunt FOC topologies.

Can the STEVAL-CTM012V1 drive motors other than compressors?

Yes - it supports any PMSM or BLDC motor rated ≤250 W and compatible with 600 V bus operation. Verified use cases include industrial pumps, HVAC fans, and small-appliance motors. The configurable shunt sensing, adjustable PWM frequency (up to 20 kHz), and scalable current limits make it adaptable across torque/speed profiles beyond compressors.

What are the input voltage requirements for the STEVAL-CTM012V1?

The board accepts universal AC mains input (85–265 V_AC) through its EMI filter and bridge rectifier stage. The internal VIPER122 buck converter regulates this to +15 V and +3.3 V. No external DC supply is required - operation begins directly from AC line, supporting global deployment without voltage-specific hardware changes.

How is motor phase voltage and current measured on this board?

Phase voltage sensing is implemented via resistive dividers feeding ADC inputs PA0–PA3 on the STSPIN32F0601Q. Current is measured using up to three shunt resistors (SR1–SR3), with signals conditioned by TSV912ID op-amps before ADC sampling. Jumper configuration determines whether one-shunt (SR1 only) or two-plus-one-shunt (SR1 + SR2) topology is active.