STEVAL-IHM043V1:6-Step BLDC sensorless driver board based on the STM32F051 and L6234

The STEVAL-IHM043V1 demonstration board is a three-phase permanent magnet brushless motor driver designed to drive a motor using a sensorless 6-step commutation technique. The board can operate from a DC input voltage between 7 and 42 VDCand supply a continuous output current of 2 A to the motor.

The circuit consists of three main blocks:

The digital control block uses the STM32F051 microcontroller to implement the control algorithms, and generates the control signals for the power stage.

The second block is the power stage, consisting of a three-phase inverter bridge implemented using the L6234 three-phase motor driver IC.

The power supply block uses the ST78L33 linear regulator to provide the 3.3 V logic supply for the microcontroller.

Key Features

  • Input voltage range: 7 to 42 Vdc
  • Output current: 2 A (5 A peak)
  • Can operate up to 100% duty cycle
  • RoHS compliant
Product Specifications
DescriptionVersionSize
DB1860: 6-step BLDC sensorless driver board based on the STM32F051 and L62341.0159 KB
Application Notes
DescriptionVersionSize
AN4220: Sensorless six-step BLDC commutation1.3946 KB
Board Manufacturing Specifications
DescriptionVersionSize
STEVAL-IHM043V1 gerber files1.0160 KB
Bill of Materials
DescriptionVersionSize
STEVAL-IHM043V1 BOM1.010 KB
Schematic Packs
DescriptionVersionSize
STEVAL-IHM043V1 schematics1.083 KB
Brochures
DescriptionVersionSize
Products and Solutions for Factory Automation and Control1.03 MB
License Agreement
DescriptionVersionSize
Evaluation products license agreement1.0125 KB
Evaluation Tool Software
Part NumberManufacturerDescription
STSW-IHM043V16-Step BLDC sensorless firmware based on STM32F051
MCUs Embedded Software
Part NumberManufacturerDescription
STSW-STM32100STSTM32 PMSM FOC Software Development Kit - MC library (UM1052)
Sample & Buy
Part NumberCore ProductUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
STEVAL-IHM043V1STM32F051; L6234681NEC3A991A2ITALY
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
STEVAL-IHM043V1CARDIndustrialEcopack2
6-step BLDC sensorless driver board based on the STM32F051 and L6234 STEVAL-IHM043V1
Sensorless six-step BLDC commutation STEVAL-IHM043V1
Sensorless six-step BLDC commutation STEVAL-IHM043V1
Sensorless six-step BLDC commutation STEVAL-IHM043V1
Sensorless six-step BLDC commutation STEVAL-IHM043V1
STEVAL-SPIMD20V1 demonstration kit based on the SPIMD20 integrated motor drive STEVAL-SPIMD20V1
ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 ST-LINK-V2