STMicroelectronics X-NUCLEO-OUT19A1

Overview

X-NUCLEO-OUT19A1 from STMicroelectronics is an industrial digital output expansion board for STM32 Nucleo development platforms, built around the IPS8160HQ-1 octal high-side smart power switch. It delivers 1 A per channel across eight isolated outputs, operates from 15–33 V (up to 36 V with J9 open), and integrates 3 kV galvanic isolation, reverse polarity protection, and thermal/overload diagnostics-enabling robust evaluation of solid-state relay behavior in PLC I/O modules.

For engineers reviewing the X-NUCLEO-OUT19A1 datasheet, X-NUCLEO-OUT19A1 pinout, X-NUCLEO-OUT19A1 application, or X-NUCLEO-OUT19A1 equivalent, this board supports rapid prototyping of industrial digital output stages with Arduino® UNO R3 and Morpho connector compatibility, GPIO-driven optocoupler interfaces (TLP293-4, ACPL-217), and real-time status feedback via green output LEDs and red overtemperature LED.

Technical Context

The board implements eight independent high-side switching channels using the IPS8160HQ-1, each featuring R_ON(MAX) = 280 mΩ, under-voltage lock-out, loss-of-ground detection, and fast decay for inductive loads. Control signals are optically isolated via TLP293-4 (input side) and ACPL-217 (status feedback), ensuring 3 kV/3.7 kV isolation between MCU and load domains.

Power architecture includes dual-supply support: 3.3 V/5 V from Nucleo board and 10.5–36 V industrial rail (via J9 jumper selection). Diagnostics include per-channel ON/OFF status (green LEDs) and common overtemperature flag (red LED), driven by the IPS8160HQ-1 STATUS pin and discrete comparator circuitry.

Key Specifications

Availability

X-NUCLEO-OUT19A1 is available at Aetrix Electronics and suitable for industrial programmable logic controller (PLC) I/O module development, STM32-based factory automation prototyping, and digital output stage validation requiring stable component supply and long-term design-in support.

Supply support for X-NUCLEO-OUT19A1 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 ICs, sensors, and analog/mixed-signal devices for industrial, automotive, and consumer applications.

The X-NUCLEO-OUT19A1 belongs to ST's Nucleo ecosystem expansion boards, engineered specifically to accelerate evaluation and integration of intelligent power switches like the IPS8160HQ-1 into industrial control systems.

FAQ

What microcontroller boards is the X-NUCLEO-OUT19A1 compatible with?

The board is designed for direct stacking with STM32 Nucleo development boards including NUCLEO-F401RE and NUCLEO-G431RB. It uses standard Arduino® UNO R3 and ST Morpho pinouts, enabling plug-and-play GPIO and power connectivity without adapters or level-shifting circuits.

Does the X-NUCLEO-OUT19A1 provide diagnostic feedback for each output channel?

No-it provides per-channel ON/OFF status via green LEDs (J12/J13 jumpers configured), but only a single shared overtemperature fault indicator (red LED, SW2 position 2–3) tied to the IPS8160HQ-1 STATUS pin. Individual channel fault reporting (e.g., overload per channel) is not implemented on the board.

Can the X-NUCLEO-OUT19A1 drive inductive loads such as solenoids or relays?

Yes-the IPS8160HQ-1 integrated circuit features fast decay functionality specifically for inductive load management, and the board includes snubber components and layout optimized for energy recovery during turn-off. Each channel supports up to 1 A continuous current into inductive loads within the 15–36 V operating range.

What isolation voltage does the X-NUCLEO-OUT19A1 support between MCU and load sides?

The board achieves 3 kV galvanic isolation between the STM32 Nucleo interface (GPIO/optocoupler inputs) and the 8-channel high-side output stage, implemented using TLP293-4 (input) and ACPL-217 (status feedback) optocouplers rated for 3.7 kV transient isolation.