STMicroelectronics B-MOTOR-PMSMA1

Overview

B-MOTOR-PMSMA1 from STMicroelectronics is a motor and power adapter evaluation kit comprising the MOONS' R57BLB50L2 50 W PMSM motor and MEAN WELL GST90A24-TW 90 W, 24 V_DC AC/DC adapter. It enables FOC and six-step control validation on ZeST motor control platforms (e.g., B-G473E-ZEST1S) with Hall sensor interface support, 0.39 N·m peak torque, and stable operation up to rated speed.

For engineers reviewing the B-MOTOR-PMSMA1 datasheet, B-MOTOR-PMSMA1 pinout, B-MOTOR-PMSMA1 application, or B-MOTOR-PMSMA1 equivalent, this kit serves as a validated hardware reference for STM32G4-based motor control development-specifically targeting low-cost PMSM commissioning, Hall-based rotor position sensing, and 24 V DC-powered power board integration.

Technical Context

The B-MOTOR-PMSMA1 is not a semiconductor component but a bundled evaluation kit designed for use with ST's ZeST ecosystem. Its core functional elements include a three-phase PMSM motor with integrated Hall sensor outputs (U/V/W phase leads + Hall A/B/C + GND), and an AC/DC adapter delivering regulated 24 V_DC at up to 3.75 A with active PFC and <0.15 W no-load consumption.

Integration requires mechanical and electrical connection to compatible ST power boards (e.g., STEVAL-LVLP01) via stripped-and-tinned leads. The motor's Hall sensor connector follows standard 6-pin layout (VCC, GND, HA, HB, HC, NC), while the adapter uses black/white output wires terminated for cable-entry insertion-no onboard regulation or digital interface is present.

Key Specifications

Availability

B-MOTOR-PMSMA1 is available at Aetrix Electronics and suitable for PMSM motor control validation, STM32G4-based FOC algorithm development, and ZeST Discovery kit hardware integration requiring stable component supply and pre-validated third-party motor+adapter pairing.

Supply support for B-MOTOR-PMSMA1 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 specializing in microcontrollers, analog ICs, power management, and motor control solutions for industrial, automotive, and consumer applications.

B-MOTOR-PMSMA1 belongs to ST's ZeST (Zero Effort STmotor) ecosystem-a dedicated platform for rapid PMSM/BLDC motor control prototyping using STM32 MCUs, with emphasis on accessible FOC implementation, Hall/sensorless startup, and modular hardware expansion.

FAQ

Is B-MOTOR-PMSMA1 a standalone motor driver or controller?

No. B-MOTOR-PMSMA1 is a passive evaluation kit containing only the R57BLB50L2 motor and GST90A24-TW power adapter. It does not include any active electronics, driver ICs, or microcontrollers. Control logic and power switching must be implemented externally using compatible ST hardware such as the B-G473E-ZEST1S Discovery kit or STEVAL-LVLP01 power board.

What Hall sensor configuration does the R57BLB50L2 motor use?

The R57BLB50L2 integrates a 3-channel digital Hall sensor with standard 6-pin connector: Pin 1 = VCC (5 V), Pin 2 = GND, Pin 3 = HA, Pin 4 = HB, Pin 5 = HC, Pin 6 = NC. Output signals are open-collector, requiring external pull-up resistors-typically provided by the connected ST power board.

Can the GST90A24-TW adapter power both the motor and the STM32 MCU subsystem?

Yes. The GST90A24-TW delivers 90 W at 24 V_DC, which exceeds the combined load of the R57BLB50L2 (50 W nominal) and the ZeST platform's MCU, gate drivers, and sensors. ST's reference designs confirm full-system operation without auxiliary power sources when using this adapter with compatible power boards.

Does B-MOTOR-PMSMA1 include an AC power cord?

No. The package contains only the R57BLB50L2 motor and GST90A24-TW adapter with stripped-and-tinned output leads. Regional AC power cords (e.g., C13-to-wall plug variants) are excluded per environmental policy and must be sourced separately based on local mains standards.