STMicroelectronics X-NUCLEO-IHM13A1

Overview

X-NUCLEO-IHM13A1 from STMicroelectronics is a low-voltage brush DC motor driver expansion board based on the STSPIN250 IC, designed for integration with STM32 Nucleo development platforms. It operates from 1.8 V to 10 V, delivers up to 2.6 A r.m.s. output current, and includes adjustable off-time current control, full overcurrent/short-circuit protection, and thermal shutdown - enabling compact portable motor control in thermal printers, robotics, and educational toys.

For engineers reviewing the X-NUCLEO-IHM13A1 datasheet, X-NUCLEO-IHM13A1 pinout, X-NUCLEO-IHM13A1 application, or X-NUCLEO-IHM13A1 equivalent, key selection considerations include Arduino UNO R3 connector compatibility, STM32 Nucleo board interoperability, STSPIN250-based drive architecture, and integrated protection features for battery-powered DC motor systems.

Technical Context

The board implements the STSPIN250 as a fully integrated H-bridge driver with internal current sensing and PWM-controlled off-time regulation. It accepts logic-level inputs (3.3 V/5 V tolerant) from Nucleo microcontrollers and translates them into bidirectional, current-limited drive signals for brushed DC motors.

Protection logic includes real-time overcurrent detection via sense-FET monitoring, automatic fault latching on short-circuit events, and thermal foldback activation above 150 °C. The board's layout routes high-current paths separately from digital control traces to minimize noise coupling.

Key Specifications

Availability

X-NUCLEO-IHM13A1 is available at Aetrix Electronics and suitable for thermal printer actuation, educational robotics platforms, battery-powered toy motor control, and rapid prototyping of portable motion systems requiring stable component supply and documented ST ecosystem integration.

Supply support for X-NUCLEO-IHM13A1 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, Switzerland, specializing in microcontrollers, power management, analog, MEMS, and sensor technologies for industrial, automotive, and consumer applications.

The X-NUCLEO series targets rapid hardware evaluation and application prototyping for STM32-based systems, with each board delivering validated, ready-to-run functionality for specific subsystems - here, low-voltage brushed DC motor control.

FAQ

Does X-NUCLEO-IHM13A1 require external current-sense resistors?

No. The STSPIN250 driver uses internal sense-FET technology for current regulation and protection, eliminating external shunt resistors. This reduces board area, component count, and thermal dissipation concerns while maintaining ±15% current accuracy across temperature and supply voltage variations.

Can X-NUCLEO-IHM13A1 drive bipolar stepper motors?

No. It is specifically designed for brushed DC motors only. The STSPIN250 provides a single H-bridge with direction and enable control - lacking the dual-H-bridge topology and phase sequencing logic required for stepper motor commutation.

Is firmware required to operate X-NUCLEO-IHM13A1?

Basic operation requires only GPIO control signals (IN1/IN2) from the host Nucleo MCU; no dedicated firmware or library is mandatory. However, ST provides X-CUBE-MCSDK middleware and example projects for advanced features like speed ramping, current profiling, and fault recovery handling.

What is the maximum ambient temperature for continuous operation?

The board is rated for continuous operation up to +70 °C ambient when mounted on a standard 2-layer PCB with 1 oz copper and no forced airflow. Thermal performance degrades above this point due to STSPIN250's internal thermal shutdown threshold at 150 °C junction temperature.