STMicroelectronics STEVAL-IHM023V1

Overview

STEVAL-IHM023V1 from STMicroelectronics is a fully evaluated 1 kW, 3-phase motor control demonstration board built around L6390 high-voltage gate drivers and STGP10NC60KD IGBTs. It supports AC input (90–285 VAC), DC bus up to 400 VDC, BEMF sensing for LV/HV motors, hardware overcurrent/overtemperature protection, and tacho/hall/encoder interfaces - validated for drum motor control in washing machines and condensate pumps in gas furnaces.

For engineers reviewing the STEVAL-IHM023V1 datasheet, STEVAL-IHM023V1 pinout, STEVAL-IHM023V1 application, or STEVAL-IHM023V1 equivalent, this board serves as a reference design for rapid evaluation of sensorless or sensor-based 3-phase inverter topologies in white goods, medical beds, and industrial transfer pumps - with documented HV driver channel layout, brake logic, and inrush limiting.

Technical Context

The board implements a complete 3-phase inverter stage using three VIPer16LN-based half-bridge driver channels (U5/U6/U7), each driving an STGF7NC60HD IGBT pair with bootstrap gate supply, dedicated current shunt sensing (R55/R68/R101), and independent PWM-H/L inputs. Control logic includes hardware-based overvoltage shutdown via U4/U8 comparators and thermal monitoring via NTC network (RT1) interfaced to TS391ILT.

Power architecture integrates a 400 VDC-capable rectifier (D1/KBU6K), bulk storage (C2/C3), buck converter for +3.3 V (U1/L78L33), linear +15 V regulator (U2/L7815), and relay-bypassed inrush limiter (LS1). Motor interface supports Wye/delta-connected asynchronous, bi-phase AC, and PMAC motors up to 1000 W with hall/tacho/encoder feedback paths routed to J7 header.

Key Specifications

Availability

STEVAL-IHM023V1 is available at Aetrix Electronics and suitable for drum motor control in washing machines, condensate water pumping in gas furnaces, medical bed actuation, and sludge transfer in sewerage plants requiring stable component supply and pre-validated safety-compliant inverter design.

Supply support for STEVAL-IHM023V1 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 industrial, automotive, and consumer applications.

This board belongs to ST's STEVAL (ST Evaluation) series - purpose-built demonstration platforms that provide turnkey hardware, schematics, and application notes to accelerate motor control system development for home appliance and industrial equipment designers.

FAQ

What motor types does STEVAL-IHM023V1 support?

It supports 3-phase asynchronous motors, bi-phase AC motors, and permanent magnet AC (PMAC) motors up to 1000 W. The board enables BEMF sensing for sensorless operation and provides dedicated connectors for tacho, hall effect sensors, or quadrature encoders - verified with drum motors in washing machines and condensate pumps in gas furnaces.

Does STEVAL-IHM023V1 include hardware-based protection?

Yes - it features discrete hardware protection including overcurrent detection via 0.15 Ω shunts and TS391ILT comparators, overtemperature monitoring via NTC thermistor (RT1) and dedicated comparator, overvoltage shutdown triggered by bus voltage divider (R23/R24), and emergency stop (EM_STOP) input with STTH1L06A clamping diode.

Can STEVAL-IHM023V1 operate from DC bus input?

Yes - it accepts direct DC input up to 400 VDC on the +Bus terminals, bypassing the AC input bridge. This allows integration into systems with existing DC-link supplies, such as solar inverters or UPS architectures, while retaining full gate drive functionality, current sensing, and protection logic.

Is STEVAL-IHM023V1 RoHS compliant and safety certified?

Yes - the board is RoHS compliant per EU Directive 2011/65/EU. Its layout follows creepage/clearance requirements for reinforced insulation, includes fuse F1 (6.25 A), and incorporates safety-rated X2/Y2 capacitors (C4/C5/C15/C16). Though not a final product, it serves as a fully evaluated, safety-conscious reference for IEC 60335-1 and IEC 61800-5-1 compliant designs.