STMicroelectronics STEVAL-IHM023V2

Overview

STEVAL-IHM023V2 from STMicroelectronics is a fully populated, RoHS-compliant 1 kW three-phase AC/DC inverter demonstration board for induction and PMSM motor control, featuring the L6390 high- and low-side gate drivers and STGP10NC60KD 600 V TO-220 IGBTs, with regenerative brake control, tachometer/Hall/encoder inputs, and BEMF daughterboard support for sensorless BLDC six-step operation.

For engineers reviewing the STEVAL-IHM023V2 datasheet, STEVAL-IHM023V2 pinout, STEVAL-IHM023V2 application, or STEVAL-IHM023V2 equivalent, this board serves as a validated hardware platform for field-oriented control (FOC) development, current-sensing validation, and voltage-range reconfiguration across 90–285 VAC, 125–400 VDC, or 18–35 VDC low-voltage DC motor control applications.

Technical Context

The board implements a three-phase inverter bridge using three L6390 driver ICs - each integrating high-voltage level-shifting, operational amplifiers for current sensing, and hardware overcurrent/overtemperature protection via comparator-based shutdown logic. The STGP10NC60KD IGBTs operate at up to 600 V with 10 A continuous collector current, mounted on a heatsink with NTC temperature monitoring.

Power conversion includes a VIPer16LD-based buck converter delivering +15 V auxiliary supply, an LM7805 linear regulator for +5 V, and an LD1117S33TR for +3.3 V microcontroller rail. Input stage supports single-phase mains with optional voltage-doubler configuration (65–145 VAC) and inrush limiting via bypass relay.

Key Specifications

Availability

STEVAL-IHM023V2 is available at Aetrix Electronics and suitable for industrial motor drive validation, embedded FOC algorithm prototyping, and educational three-phase inverter design requiring stable component supply and pre-validated safety isolation.

Supply support for STEVAL-IHM023V2 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, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer markets.

This board belongs to ST's STEVAL motor control evaluation platform family, engineered to accelerate adoption of advanced motor control techniques - especially field-oriented control and sensorless commutation - through production-ready reference hardware.

FAQ

Is STEVAL-IHM023V2 compatible with STM32 microcontrollers?

Yes - the board features a dedicated motor control connector (J5) designed for direct interface with the STM3210B-EVAL board and other ST motor control kits. It provides synchronized PWM outputs (PWM-A-H/L through PWM-C-H/L), current sense signals, and Hall/encoder inputs aligned with STM32 timer and ADC peripheral requirements.

Does the board support sensorless BLDC control?

Yes - it includes provisions to connect the BEMF daughterboard (not included) for sensorless six-step commutation of BLDC motors. The schematic shows dedicated test points and routing for back-EMF signal acquisition and zero-crossing detection circuitry.

What protection features are implemented in hardware?

The board integrates hardware-level protections including regenerative brake control, input inrush limitation via bypass relay, overcurrent shutdown triggered by L6390 comparators, and overtemperature monitoring via NTC thermistor on the heatsink. All protections feed directly into the !SD (shutdown) pins of the L6390 drivers.

Can the input voltage range be extended below 90 VAC?

Yes - with external reconfiguration of the input sourcing circuit (e.g., enabling the voltage-doubler network), the board operates from 65 VAC to 145 VAC. This is documented in the data brief and verified in Figure 3 of the schematic, where L1/C13 form the doubler path.