STMicroelectronics EVSPIN958

Overview

EVSPIN958 from STMicroelectronics is a single brushed DC motor driver expansion board based on the STSPIN958 IC, designed for rapid prototyping and evaluation of 5–58 V, up to 5 A_r.m.s. brushed motor control. It supports seven driving modes, adjustable slew rate, integrated current limiting with programmable off-time, and two fixed-gain amplifiers for external current sensing - deployed in Arduino® UNO R3 and STM32 Nucleo-compatible motion control systems.

For engineers reviewing the EVSPIN958 datasheet, EVSPIN958 pinout, EVSPIN958 application, or EVSPIN958 equivalent, key selection criteria include voltage range (5–58 V), phase current capability (5 A_r.m.s.), compatibility with Arduino R3/STM32 Nucleo headers, parallel half-bridge scalability, and integrated protection (OCP, UVLO, thermal shutdown).

Technical Context

The EVSPIN958 implements a dual-channel half-bridge driver architecture using the STSPIN958 IC, enabling configurable operation as a single full-bridge (5 A_r.m.s.) or paralleled half-bridge (10 A_r.m.s.). Its internal current limiter uses off-time blanking and adjustable TOFF, while the two integrated 10× gain amplifiers support high-side or low-side shunt-based current feedback.

Control logic accepts PWM1/PWM2 inputs with independent enable (EN/nFAULT) and standby (nSTDBY) signals, and mode selection via MODE1–MODE3 pins. Protection features are hardware-asserted: overcurrent triggers immediate shutdown, UVLO disables outputs below ~4.2 V, and thermal shutdown activates at T_J ≥ 150 °C.

Key Specifications

Availability

EVSPIN958 is available at Aetrix Electronics and suitable for brushed DC motor control in robotics prototyping, industrial actuator evaluation, and educational mechatronics labs requiring stable component supply and Arduino/STM32 ecosystem integration.

Supply support for EVSPIN958 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, designing and manufacturing microcontrollers, power ICs, sensors, and analog/mixed-signal devices for industrial, automotive, and consumer applications.

The EVSPIN958 belongs to ST's SPIN family of motor driver evaluation boards, developed specifically to accelerate development of cost-sensitive, low-to-mid power brushed DC motor control solutions with minimal external components.

FAQ

What microcontrollers is the EVSPIN958 compatible with?

The EVSPIN958 is mechanically and electrically compatible with Arduino® UNO R3 pinout and most STM32 Nucleo development boards (e.g., NUCLEO-F401RE, NUCLEO-G431RB). It uses standard 2.54 mm pitch headers and maps PWM, EN, MODE, and sense signals to accessible GPIO pins without level-shifting requirements.

Can the EVSPIN958 drive two separate motors?

No - the EVSPIN958 is a single brushed DC motor driver board based on one STSPIN958 IC. It controls one motor via full-bridge output (OUT1/OUT2). Parallel configuration doubles current for one motor; it does not provide independent dual-motor control.

How is current limiting configured on the EVSPIN958?

Current limiting is set via the TOFF pin using an external resistor to ground, which determines off-time duration during overcurrent events. The internal comparator monitors LSS1/LSS2 shunt voltages; when threshold is exceeded, the driver enters off-time blanking and cycles until fault clears or EN is toggled.

Does the EVSPIN958 require external power sequencing?

No - the board integrates UVLO circuitry that holds outputs disabled until VS reaches ≥4.2 V. No external power-good signaling or sequencing logic is needed. VDD (5 V) is internally regulated from VS, supporting direct connection to unregulated 5–58 V supplies.