Description
The X-NUCLEO-OUT15A1 is an industrial digital output expansion board for STM32
Nucleo. It provides a powerful and flexible environment for the evaluation of the
driving and diagnostic capabilities of the IPS1025HF single high-side, smart power,
solid-state relay in a digital output module connected to 2.5 A industrial loads.
The X-NUCLEO-OUT15A1 interfaces with the microcontroller on the STM32 Nucleo
via 5 kV optocouplers driven by the GPIO pins and Arduino® UNO R3 connectors.
The expansion board can be connected to either a NUCLEO-F401RE or a NUCLEOG431RB
development board.
You can also evaluate a system consisting of an X-NUCLEO-OUT05A1 stacked on
an X-NUCLEO-OUT15A1 expansion board.
Supplying the X-NUCLEO-OUT05A1 through the main supply rail and the XNUCLEO-
OUT15A1 through the output of the X-NUCLEO-OUT05A1, you can
achieve the typical architecture of a single channel digital output for safety systems.
The process stages of the two expansion boards result cascaded. The load
connected to the X-NUCLEO-OUT15A1 output can be supplied only when both
cascaded systems are properly working.

Features
• Based on the IPS1025HF single high-side switch, which features:
– Operating range up to 60 V
– Low-power dissipation (RON(MAX) = 25 mΩ)
– Propagation delay at startup < 60 μs
– Fast decay for inductive loads
– Smart driving of capacitive load
– Under-voltage lock-out
– Overload and overtemperature protection
– PowerSSO 24 package
• Application board operating range: 8-33 V/0-2.5 A
• Extended voltage operating range (J3 open) up to 60 V
• Green LED for output on/off status (J11 close 3-4 and SW5 close 1-2)
• Red LEDs for overload and overheating diagnostics (SW2 and SW4 close 2-3)
• Output voltage on/off status feedback (J11 close 1-2)
• Control signal for fast discharge of output voltage (J11 close 5-6, J12 close)
• External fast discharge circuitry for huge inductive loads (J11 close 7-8)
• 5 kV galvanic isolation
• Supply rail reverse polarity protection
• Compatible with STM32 Nucleo development boards
• Equipped with Arduino® UNO R3 connectors
• CE certified
• Not FCC approved for resale
• RoHS and China RoHS compliant