STMicroelectronics STEVAL-IHM002V1

Overview

STEVAL-IHM002V1 from STMicroelectronics is a modular, plug-in control board for three-phase BLDC, AC induction, and BLAC permanent magnet motor drives, featuring the ST7FMC2S4T6-TQFP44 MCU, six-step and sinusoidal PWM outputs, Hall sensor support, and compatibility with 300W/1kW/3kW power modules for industrial motor control applications.

For engineers reviewing the STEVAL-IHM002V1 datasheet, STEVAL-IHM002V1 pinout, STEVAL-IHM002V1 application, or STEVAL-IHM002V1 equivalent, this reference design kit enables rapid evaluation of sensorless six-step commutation and Hall-based sinusoidal drive topologies across variable-speed motor systems with re-usable ORCAD schematics and RDK-GUI configuration tools.

Technical Context

The board implements an inverter-based motor control architecture centered on the ST7FMC microcontroller, which integrates dedicated motor control peripherals including three independent PWM channels (MCPWMV/W/U), analog comparators (OAP/OAN), current sensing inputs (HSCS/LSCS), and Hall sensor interfaces (MCIA/MCIB/MCIC) for real-time rotor position tracking.

It supports dual commutation modes: six-step trapezoidal drive using digital Hall inputs and sinusoidal field-oriented control via external ADC sampling and software-based space vector modulation, with gate drivers (L6386D ×3) delivering 600V/±250mA high-side/low-side outputs to IGBTs or MOSFETs.

Key Specifications

Availability

STEVAL-IHM002V1 is available at Aetrix Electronics and suitable for industrial motor control prototyping, HVAC blower development, and appliance compressor evaluation requiring stable component supply and legacy design continuity.

Supply support for STEVAL-IHM002V1 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, specializing in microcontrollers, power ICs, sensors, and automotive-grade solutions.

This board belongs to ST's STEVAL reference design kit family, engineered to accelerate adoption of ST's motor control MCUs by providing validated hardware, GUI tools, firmware libraries, and open-source schematics for industrial and consumer motor systems.

FAQ

Is STEVAL-IHM002V1 still in production?

No - STEVAL-IHM002V1 is marked "Obsolete Product(s)" in the official ST document revision history (Rev 1, March 2006). It is no longer manufactured or supported by STMicroelectronics, though functional units remain available through authorized legacy distributors and secondary markets for design continuity and repair use.

What power modules are compatible with this control board?

The STEVAL-IHM002V1 control board is designed to interface with three ST-provided power board variants: STEVAL-IHM002V2 (300W), STEVAL-IHM002V3 (1kW), and STEVAL-IHM002V4 (3kW), all using identical connector pinouts (J6, J11, J12) and signal-level compatibility per the schematic.

Does it support encoder-based position feedback?

No - the board lacks dedicated encoder interface circuitry (e.g., quadrature decoder inputs or dedicated timer capture channels for A/B/Z signals). Its position sensing is limited to Hall-effect sensors (MCIA/MCIB/MCIC) and analog current/voltage feedback for sensorless estimation.

Can firmware be updated or customized?

Yes - ST provided RDK-Libraries (C source code) and ORCAD design files for full customization. The ST7FMC2S4T6 MCU supports in-circuit programming via SWIM interface, and the board includes test points (e.g., PA0/PA1) for debugging and firmware reflash using standard STLINK-compatible tools.