STMicroelectronics STEVAL-IHM001V1

Overview

STEVAL-IHM001V1 from STMicroelectronics is a modular reference design kit for three-phase motor control, featuring an ST7FMC2S4T6-TQFP44 microcontroller, L6386D 3-channel high-voltage gate drivers, and support for six-step commutation and sinusoidal PWM outputs. It enables rapid prototyping of BLDC, AC induction, and BLAC PM motor drives up to 3 kW via interchangeable power modules.

For engineers reviewing the STEVAL-IHM001V1 datasheet, STEVAL-IHM001V1 pinout, STEVAL-IHM001V1 application, or STEVAL-IHM001V1 equivalent, key selection considerations include MCU-based sensorless BLDC control capability, compatibility with 300W/1kW/3kW ST power boards, GUI-driven configuration (RDK-GUI), and availability of firmware libraries (RDK-Libraries) and ORCAD schematics.

Technical Context

The board implements an inverter topology with three independent half-bridge gate driver stages (L6386D ×3), each supporting 600 V high-side and low-side MOSFET control with bootstrap supply and fault diagnostics. The ST7FMC2S4T6 MCU provides dedicated motor control peripherals including three complementary PWM channels, analog comparators for current sensing, and Hall sensor inputs.

Hardware architecture separates signal and power domains using optimized PCB layout to minimize EMI coupling; modular design allows plug-in replacement of power stage boards while retaining the same control board across 300W, 1kW, and 3kW variants.

Key Specifications

Availability

STEVAL-IHM001V1 is available at Aetrix Electronics and suitable for industrial motor drive development, HVAC blower control, and appliance compressor evaluation requiring stable component supply and long-term design continuity.

Supply support for STEVAL-IHM001V1 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, specializing in microcontrollers, power ICs, sensors, and automotive-grade solutions.

This reference design belongs to ST's IHM (Intelligent High-Voltage Motor Control) product line, engineered to accelerate adoption of efficient, scalable, and software-configurable motor control systems for industrial and consumer applications.

FAQ

What motor control topologies does STEVAL-IHM001V1 support?

STEVAL-IHM001V1 supports six-step commutation for sensorless BLDC motors, scalar V/f control for 3-phase AC induction motors, and sinusoidal field-oriented control (FOC) for BLAC PM motors using Hall-effect position feedback. All modes are implemented via the ST7FMC2S4T6's dedicated motor control peripherals and configurable firmware libraries.

Is the control board compatible with third-party power stages?

No - the control board is designed exclusively for use with ST's companion power modules (e.g., STEVAL-IHM002V1, STEVAL-IHM003V1). Connector pinouts, voltage levels, and protection logic are matched only to ST's specified 300W/1kW/3kW boards; interfacing with non-ST power stages requires hardware redesign and signal-level validation.

Does STEVAL-IHM001V1 include current sensing circuitry?

Yes - it integrates high-side current sensing using shunt resistors and comparator-based analog front-end circuitry connected to the ST7FMC2S4T6's internal comparators. This enables overcurrent protection and phase current feedback for closed-loop control without external op-amps or ADCs.

Can the RDK-GUI be used with custom firmware builds?

Yes - the RDK-GUI communicates via UART using a documented command protocol. Users may retain the GUI interface while replacing default firmware with custom code, provided the serial command parser and data structure (e.g., register map, packet framing) remain compliant with ST's RDK specification.