STMicroelectronics X-NUCLEO-OUT07A1

Overview

X-NUCLEO-OUT07A1 from STMicroelectronics is an industrial digital output expansion board for STM32 Nucleo development platforms, built around the IPS4260LM quad low-side intelligent power switch. It delivers galvanically isolated 0.5–2 A per channel switching (8–50 V process side), fast rise/fall times (<1 µs), open-load detection, and per-channel overload/thermal protection. It targets PLC I/O module evaluation with Arduino® UNO R3 and ST morpho connectivity.

For engineers reviewing the X-NUCLEO-OUT07A1 datasheet, X-NUCLEO-OUT07A1 pinout, X-NUCLEO-OUT07A1 application, or X-NUCLEO-OUT07A1 equivalent, this board enables rapid validation of isolated digital output architectures-especially where process-side voltage flexibility (10–30 V), configurable current limiting (0.5/1/2 A), and diagnostic signal routing (FLT_L, OL_L, DIAG1–4_L) are critical to industrial control design.

Technical Context

The board implements dual-isolation architecture using STISO620 (logic-to-INx interface) and STISO621 (logic-to-DIAG/FLT/OL interfaces), each rated for 2.8 kVRMS. The isolated DC-DC converter (DC1, 3 kVDC rating) supplies both isolators and the IPS4260LM's logic-side rails (3.3 V or 5 V) and process-side 10 V rail.

IPS4260LM operates in low-side configuration with four independent channels, each featuring programmable current limit via ILIM pin, integrated catch diodes for inductive load decay, and configurable cutoff during overload. Process-side supply is selectable between 10 V (isolated rail) or 10–30 V (external field rail), with reverse-polarity protection on J1 when external supply is used.

Key Specifications

Availability

X-NUCLEO-OUT07A1 is available at Aetrix Electronics and suitable for industrial PLC I/O prototyping, STM32-based automation controllers, and ruggedized digital output module qualification requiring stable component supply, traceable sourcing, and long-term lifecycle support.

Supply support for X-NUCLEO-OUT07A1 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 solutions for industrial, automotive, and consumer applications.

X-NUCLEO-OUT07A1 belongs to ST's X-NUCLEO ecosystem of STM32-compatible expansion boards, engineered specifically to accelerate evaluation and integration of intelligent power switches and industrial I/O functions into embedded control systems.

FAQ

Can X-NUCLEO-OUT07A1 operate without being stacked on an STM32 Nucleo board?

Yes - it supports standalone operation. Logic-side supply (3.3 V or 5 V) can be provided externally via CN6 pins 4 or 5 (SW1 closed to 1–2 or 2–3). Process-side supply must be connected to CN1 (V_FIELD_RP and ground) or configured for 10 V rail (SW7 closed to 1–2), with appropriate load connections to CN2/CN3.

What is the function of jumpers J9 and J10?

J9 parallels input control signals (IN1_L–IN4_L) to enable synchronized channel activation; J10 parallels output channels (OUT1–OUT4) to increase current capacity beyond 2 A per channel. Together, they support dual-channel (J9/J10 1–2 & 5–6) or single-channel (J9/J10 all three pairs closed) configurations for higher-power loads.

How does open-load detection work, and how is it enabled?

Open-load detection is implemented per channel inside the IPS4260LM and signaled via OL_L (cumulative) and individual DIAGx_L outputs. It is enabled only when corresponding jumpers J7[1–2], [3–4], [5–6], or [7–8] are closed. When J7 is open, D7 (red LED) and OL_L output are disabled and must be ignored.

Which STM32 Nucleo boards are compatible with X-NUCLEO-OUT07A1?

X-NUCLEO-OUT07A1 is verified for use with NUCLEO-F401RE (STM32F401RE MCU) and NUCLEO-G431RB (STM32G431RB MCU). Both boards provide Arduino® UNO R3 and ST morpho headers, enabling direct stacking and automatic signal mapping for INx_L, DIAGx_L, FLT_L, and OL_L via CN5, CN8, and CN9 connectors.