STMicroelectronics STEVAL-IFP046V1

Overview

STEVAL-IFP046V1 from STMicroelectronics is an industrial digital output expansion board built around the IPS1025H-32 single high-side smart power switch, supporting 8–33 V input (up to 60 V with J3 open), 0–5.7 A load current, 5 kV galvanic isolation, and Arduino UNO R3/STM32 Nucleo compatibility. It enables evaluation of solid-state relay diagnostics, fast inductive decay, and capacitive load driving in PLC I/O modules.

For engineers reviewing the STEVAL-IFP046V1 datasheet, STEVAL-IFP046V1 pinout, STEVAL-IFP046V1 application, or STEVAL-IFP046V1 equivalent, this board delivers verified high-side switching validation, optocoupler-isolated GPIO interfacing, overload/overtemperature LED diagnostics, and stackable quad-channel system evaluation capability.

Technical Context

The board implements a single-channel high-side power switch using the IPS1025HQ-32 IC in QFN48L (8×6 mm) package, featuring integrated undervoltage lock-out, thermal shutdown, and current-limit protection. Its 5 kV optocoupler isolation (ISO1–ISO3) separates microcontroller GPIOs from industrial load domains.

It supports dual supply modes: default 7–12 V Nucleo-derived VCC via PA7/PA8, and extended 8–60 V external load supply routed through IN1/VIN. Diagnostics include green LED for output status and red LEDs for FLT1 (overload) and FLT2 (overtemperature).

Key Specifications

Availability

STEVAL-IFP046V1 is available at Aetrix Electronics and suitable for industrial programmable logic controllers, factory automation I/O expansion, embedded safety-rated digital output modules, and STMicroelectronics ecosystem development requiring stable component supply and certified reference hardware.

Supply support for STEVAL-IFP046V1 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.

This board belongs to ST's STEVAL (ST Evaluation) series, engineered specifically to accelerate validation of industrial-grade smart power switches - particularly high-side drivers with integrated protection and diagnostic features - in real-world PLC and automation equipment.

FAQ

What microcontroller platforms does STEVAL-IFP046V1 directly support?

STEVAL-IFP046V1 natively interfaces with STM32 Nucleo boards including NUCLEO-F401RE and NUCLEO-G431RB via Morpho and Arduino R3 headers. It uses optocouplers (ISO1–ISO3) to isolate GPIO control lines, enabling safe 5 kV-separated communication without level-shifting or additional interface circuitry.

How is overload and overtemperature protection implemented and indicated?

Protection is handled by the onboard IPS1025HQ-32 IC, which triggers internal shutdown on overcurrent or junction temperature >150 °C. Fault conditions are signaled externally via dedicated FLT1 (overload) and FLT2 (overtemperature) pins, each driving a red LED for immediate visual diagnosis without host software intervention.

Can multiple STEVAL-IFP046V1 boards be used together, and how?

Yes - up to four STEVAL-IFP046V1 boards can be physically stacked using standard headers. Each board operates independently with isolated control and feedback paths, allowing engineers to evaluate a full quad-channel digital output module for PLC backplane designs without modifying firmware or layout.

What certifications apply to STEVAL-IFP046V1?

The board is CE certified and compliant with RoHS Directive 2011/65/EU and China RoHS GB/T 26572–2011. It is not FCC approved for resale, as it is intended solely for evaluation and development use within controlled lab or industrial test environments.