STMicroelectronics STEVAL-IHM017V1

Overview

STEVAL-IHM017V1 from STMicroelectronics is a 100 W, 3-phase sensorless BLDC motor evaluation board built around the ST7FMC2S4T6 8-bit microcontroller and three STD5NK52ZD-1 IPAK-packaged 520 V/4.4 A power MOSFETs. It implements trapezoidal commutation with integrated MTC peripheral support, includes a VIPer12A-based 15 V auxiliary supply, and accepts 120/230 V_AC input for industrial fan, pump, and appliance motor control prototyping.

For engineers reviewing the STEVAL-IHM017V1 datasheet, STEVAL-IHM017V1 pinout, STEVAL-IHM017V1 application, or STEVAL-IHM017V1 equivalent, this page delivers verified hardware architecture, in-circuit debugging via HE10 ICC connector, runtime tuning via three potentiometers, and component-level validation of the 3-phase inverter stage using ST's L6386D gate drivers and STTH106 rectifiers.

Technical Context

The board implements sensorless field-oriented control (FOC)–compatible trapezoidal commutation using back-EMF zero-crossing detection executed by the ST7FMC2S4T6's Motor Control Peripheral (MTC), with dedicated PWM outputs, current sensing inputs, and analog comparators. The control loop runs at up to 16 MHz system clock frequency with 16 KB Flash and 1 KB RAM.

Power stage topology uses six STD5NK52ZD-1 MOSFETs in an IPAK package arranged in a standard 3-phase bridge, driven by three L6386D high-/low-side gate drivers with bootstrap operation, fault reporting (DIAG), and 600 V-rated output capability. Bus voltage is derived from full-wave rectified 120/230 V_AC, filtered by 1 mH choke and 100 µF bulk capacitor.

Key Specifications

Availability

STEVAL-IHM017V1 is available at Aetrix Electronics and suitable for industrial motor control evaluation, HVAC blower development, and white-goods appliance prototyping requiring stable component supply and documented reference design traceability.

Supply support for STEVAL-IHM017V1 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 devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

This board belongs to ST's STEVAL motor control evaluation platform family, engineered to accelerate development of cost-sensitive, sensorless BLDC drives for appliances and low-power industrial equipment using ST's proprietary MTC firmware libraries and toolchain integration.

FAQ

Does STEVAL-IHM017V1 support closed-loop speed or torque control?

Yes - the ST7FMC2S4T6 microcontroller includes dedicated Motor Control Peripheral (MTC) hardware that supports real-time back-EMF zero-crossing detection, PWM timing synchronization, and analog comparator-based current sensing, enabling both speed-regulated and torque-controlled sensorless BLDC operation using ST's provided firmware libraries.

What debugging interface does STEVAL-IHM017V1 use, and is it compatible with modern tools?

It uses a 10-pin HE10 male ICC (In-Circuit Communication) connector compliant with ST's legacy debug protocol. While not natively supported by STLINK v2/v3, it works with the inDART-STX debugger from SofTec Microsystems and can be adapted via level-shifting and pin-mapping to ST's STM8/STM32 SWIM or UART-based flash utilities with firmware modification.

Can the board drive motors above 100 W, and what limits higher power operation?

No - thermal and electrical margins are validated only up to 100 W. The IPAK MOSFETs, 1 mH choke, and 100 µF bus capacitor are rated for peak currents ≤4.4 A RMS. Exceeding this risks MOSFET thermal runaway, gate driver latch-up, and insufficient bus capacitance for ripple suppression during commutation transients.

Is the VIPer12A-based auxiliary supply isolated, and what loads does it power?

No - the VIPer12A stage is non-isolated, deriving +15 V for L6386D gate drivers and +5 V (via L78L05ACZ linear regulator) for the ST7FMC2S4T6 MCU and logic. It does not power motor phases or sense circuitry; all analog signal conditioning is referenced to the main ground plane with 1% resistor networks for precision.