STMicroelectronics STEVAL-IFP041V1

Overview

STEVAL-IFP041V1 from STMicroelectronics is an industrial digital output expansion board based on the ISO808 octal high-side smart power solid-state relay in TFQFPN32 package, featuring 2.5 kVRMS galvanic isolation, 0.7 A per channel drive capability, and dual control modes (direct jitter < 20 µs / synchronous jitter < 6 µs) for driving inductive loads in PLC I/O modules.

For engineers reviewing the STEVAL-IFP041V1 datasheet, STEVAL-IFP041V1 pinout, STEVAL-IFP041V1 application, or STEVAL-IFP041V1 equivalent, this board enables rapid evaluation of isolated digital output performance, GPIO-level interface compatibility with STM32 Nucleo (NUCLEO-F401RE/NUCLEO-G431RB), Arduino® UNO R3 connector interoperability, and diagnostic LED feedback for output status, overtemperature, and enable signaling.

Technical Context

The board implements galvanic isolation between logic-side microcontroller signals and process-side 10–36 V industrial loads using the ISO808's integrated 2.5 kVRMS barrier. It supports both direct GPIO control (jitter < 20 µs) and synchronous clocked operation (jitter < 6 µs) via dedicated SYNC and LOAD pins.

Process-side supply range is configurable (9.2–36 V) via jumpers J9/J10; logic-side operates at 3.3–5 V. On-board protections include reverse polarity protection on both rails, undervoltage lock-out, overload/overtemperature detection, and loss-of-ground monitoring - all reported through dedicated STATUS and red/yellow LED indicators.

Key Specifications

Availability

STEVAL-IFP041V1 is available at Aetrix Electronics and suitable for industrial PLC I/O module development, STM32-based embedded control prototyping, and Arduino-compatible digital output validation requiring stable component supply, traceable sourcing, and long-term lifecycle support.

Supply support for STEVAL-IFP041V1 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, designing and manufacturing microcontrollers, power management ICs, analog & mixed-signal devices, and sensors for industrial, automotive, and consumer applications.

This board belongs to ST's STEVAL evaluation platform family, engineered specifically to accelerate validation of intelligent power switches in industrial digital output systems - emphasizing isolation integrity, load diagnostics, and seamless MCU integration.

FAQ

What microcontroller platforms is STEVAL-IFP041V1 compatible with?

STEVAL-IFP041V1 is natively compatible with STM32 Nucleo boards including NUCLEO-F401RE and NUCLEO-G431RB via GPIO headers, and features Arduino® UNO R3 connectors for broader ecosystem interoperability. Logic-side voltage is configurable between 3.3 V and 5 V to match host MCU I/O levels.

How is galvanic isolation implemented on this board?

Galvanic isolation is provided by the ISO808QTR IC itself, which integrates a 2.5 kVRMS reinforced isolation barrier between its logic-side control inputs (IN1–IN8, OUT_EN, SYNC, LOAD) and process-side outputs (OUT1–OUT8, VCC, GND_dd). No external isolators or optocouplers are required.

What protection features does the board offer for industrial environments?

The board provides reverse polarity protection on both logic and process supply rails, undervoltage lock-out, thermal shutdown, overload current limiting, and loss-of-ground detection - all managed internally by the ISO808QTR and signaled via STATUS pin and red LED indicator.

Can multiple STEVAL-IFP041V1 boards be stacked for expanded I/O?

Yes - the board supports stacking with other compatible expansion boards via its Arduino® UNO R3 and Morpho headers (unmounted). This allows modular construction of multi-channel digital output systems while maintaining signal integrity and isolation boundaries across layers.