STMicroelectronics STEVAL-IFP040V1

Overview

STEVAL-IFP040V1 from STMicroelectronics is an industrial digital output expansion board built around the IPS1025HF single high-side smart power switch, supporting 8–33 V input (extendable to 60 V), 2.5 A load current, and featuring 5 kV galvanic isolation, fast propagation delay (<60 µs), and comprehensive diagnostics including overload and overtemperature detection. It interfaces with STM32 Nucleo boards via Arduino® UNO R3 and Morpho connectors for PLC-style digital output evaluation.

For engineers reviewing the STEVAL-IFP040V1 datasheet, STEVAL-IFP040V1 pinout, STEVAL-IFP040V1 application, or STEVAL-IFP040V1 equivalent, this board enables rapid validation of high-side switching performance, diagnostic feedback timing, isolated control signal integrity, and cascaded safety architecture with STEVAL-IFP045V1 in industrial I/O modules.

Technical Context

The board implements a fully isolated digital output stage using six 5 kV optocouplers (ISO1–ISO5, DR1) to decouple microcontroller GPIOs from the high-side switch control and status feedback paths. Signal routing supports both default and alternate supply configurations via jumpers J3, J4, and J12.

Diagnostic functionality is hardware-verified through red LEDs (SW2/SW4 closed 2–3) for overload/overtemperature flags and green LED (J11 3–4 + SW5 1–2) for output on/off state, with dedicated terminals (J11 pins 1–2, 5–6, 7–8) enabling output voltage feedback, fast discharge control, and external discharge circuitry for large inductive loads.

Key Specifications

Availability

STEVAL-IFP040V1 is available at Aetrix Electronics and suitable for programmable logic controller (PLC) I/O module development, industrial safety system prototyping, and digital output cascade architecture validation requiring stable component supply and certified reference design support.

Supply support for STEVAL-IFP040V1 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, specializing in microcontrollers, power management, analog ICs, and industrial-grade evaluation tools with broad automotive and industrial certification coverage.

This board belongs to ST's STEVAL industrial evaluation platform family, designed specifically to accelerate validation of smart power switches in safety-critical digital output applications compliant with IEC 61131-2 and IEC 61508.

FAQ

What is the maximum supported load voltage when J3 is open?

When jumper J3 is open, the STEVAL-IFP040V1 supports up to 60 V on the load supply rail, matching the IPS1025HF's absolute maximum operating voltage. This configuration maintains full diagnostic functionality and isolation integrity, verified per DB4775 schematic Figure 1 and Table 1.

How does the board provide output status feedback to the host MCU?

Output voltage status is fed back to the host MCU via optocoupler ISO2 (pin OUT_FB), accessible at J11 pins 1–2. The signal is active-high and electrically isolated, enabling real-time confirmation of switch conduction without shared ground or voltage level translation.

Can STEVAL-IFP040V1 be used standalone without a Nucleo board?

Yes - the board accepts external 8–33 V supply directly at its VIN terminal and supports manual control via jumper-configurable inputs. However, full diagnostic LED indication and GPIO-driven operation require connection to a compatible MCU development board per the DB4775 application notes.

What safety certifications does STEVAL-IFP040V1 hold?

The board is CE certified and compliant with RoHS and China RoHS directives. It is not FCC approved for resale. Its 5 kV isolation, reverse polarity protection, and thermal/overload diagnostics align with functional safety prerequisites for Category 3 / SIL 2 digital output modules per IEC 61508.