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Three phase low voltage inverter power board for FOC and scalar motor control based on STS8DNH3LL MOSFET

The STEVAL-IHM031V1 demonstration board is designed to drive a low voltage/low-to-medium current, 3-phase brushless, synchronous or asynchronous motor. It provides a compact solution along with efficient power dissipation thanks to dual in-package power MOSFETs.

This demonstration board integrates the following functional blocks: dedicated power supply for handling bus voltage in the range of 12 V to 24 V (up to 5 A), integrated gate driving, overcurrent protection, overvoltage and overtemperature sensing, three-shunt current sensing for FOC control, single-shunt sensing for trapezoidal control, BEMF sensing and amplification (for both GE and STMicroelectronics methods) and motor control connector.

The on-board MC connector allows the demonstration board to be interfaced with any STMicroelectronics MCU control board with a dedicated connector in order to control several types of 3-phase motors (asynchronous, PMSM brushless DC and brushless AC).

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Errata Sheet
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Data Brief

Key Features

  • Bus voltage: 12 V - 24 V, up to 120 W
  • 3-phase full bridge inverter topology
  • Compact size with dual N-channel power MOSFETs
  • Easily configurable for scalar and FOC motor control
  • Motor current feedback via three shunt resistors
  • Security functions:overcurrent detectionbus voltage monitoringtemperature sensing
  • RoHS compliant


Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB0949: 3-phase low voltage inverter power board for FOC and scalar motor control based on the STS8DNH3LL MOSFET
1.1 180 KB

User Manual

Description Version Size
UM0971: STEVAL-IHM031V1 low voltage three-phase inverter demonstration board
1.1 1,139 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
Gerber files for STEVAL-IHM031V1 board
1.0 136 KB

Bill of Materials

Description Version Size
BOM for STEVAL-IHM031V1 board
1.0 24 KB

Schematic Pack

Description Version Size
Board schematics for STEVAL-IHM031V1 board
1.0 90 KB

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-IHM031V1NRNDSTS8DNH3LL-134No availability reported, please contact our Sales officeEcopack2-

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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