STMicroelectronics STEVAL-IFP047V1

Overview

STEVAL-IFP047V1 from STMicroelectronics is an industrial digital output expansion board based on the ISO808QTR-1 octal high-side smart power solid-state relay in TFQFPN32 package, featuring 9.2–36 V process-side operation, 2.5 kVRMS galvanic isolation, ≤6 µs synchronous control jitter, 1 A per channel drive capability, and integrated overload/overtemperature/loss-of-ground protection. It enables rapid evaluation of isolated digital output modules for PLC I/O stages.

For engineers reviewing the STEVAL-IFP047V1 datasheet, STEVAL-IFP047V1 pinout, STEVAL-IFP047V1 application, or STEVAL-IFP047V1 equivalent, this board supports direct GPIO and Arduino® UNO R3 interface with STM32 Nucleo boards (NUCLEO-F401RE, NUCLEO-G431RB), dual control modes (direct/synchronous), and real-time LED diagnostics for output status, enable signal, and fault conditions.

Technical Context

The board implements galvanic isolation between logic-side microcontroller (3.3–5 V) and process-side loads (10–33 V default, extendable to 9.2–36 V via jumper configuration) using the ISO808QTR-1's embedded 2.5 kVRMS barrier. It supports two deterministic control modes: direct mode (jitter < 20 µs) and synchronous mode (jitter < 6 µs), both enabling precise timing for industrial cyclic I/O.

Hardware-level protections include undervoltage lock-out, fast decay for inductive loads, reverse polarity protection on both supply rails, and dedicated fault signaling via red LED (overheating/communication error) and yellow LED (output enable status). Green LEDs indicate individual channel ON/OFF state per output.

Key Specifications

Availability

STEVAL-IFP047V1 is available at Aetrix Electronics and suitable for industrial programmable logic controller (PLC) I/O module development, STM32-based automation prototyping, and isolated digital output qualification requiring stable component supply, traceable sourcing, and long-term lifecycle support.

Supply support for STEVAL-IFP047V1 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 products for industrial, automotive, and consumer applications.

This board belongs to ST's STEVAL evaluation platform family, engineered specifically to accelerate validation of industrial-grade smart power switches-emphasizing galvanic isolation, robust load driving, and seamless integration with STM32 ecosystem tools.

FAQ

What microcontroller platforms is STEVAL-IFP047V1 compatible with?

STEVAL-IFP047V1 is natively compatible with STM32 Nucleo development boards including NUCLEO-F401RE and NUCLEO-G431RB via GPIO and Morpho headers, and supports Arduino® UNO R3 connectors for broader MCU interoperability. It requires no additional level-shifting or isolation circuitry when used within its specified 3.3–5 V logic voltage range.

How do I configure the board for extended process-side voltage range (9.2–36 V)?

To enable the full 9.2–36 V process-side operating range, close jumper J10 and open jumper J9. The default configuration (J9 closed, J10 open) sets the range to 10–33 V. These jumpers directly route external supply to the ISO808QTR-1 Vdd pin and adjust internal regulation thresholds per STMicroelectronics DB4951 schematic guidelines.

What does the red LED indicate, and how is it triggered?

The red LED (J3 pins 1–2) signals a combined fault condition: either die overtemperature (>150 °C) or communication error (e.g., SPI timeout or invalid command sequence detected by ISO808QTR-1 internal state machine). It remains latched until reset via OUT_EN deassertion or power cycle, per ISO808QTR-1 FAULT pin behavior documented in DB4951.

Can STEVAL-IFP047V1 be stacked with other expansion boards?

Yes - the board features standard Arduino® UNO R3 and STM32 Nucleo Morpho pin layouts, enabling mechanical and electrical stacking with compatible shields or daughterboards. Stackability is validated for use cases involving multi-function industrial I/O expansion, provided total power dissipation and supply rail loading remain within ISO808QTR-1's 1 A/channel and board-level thermal limits.