X-NUCLEO-DO4xA1 Digital Output Expansion Boards

STMicroelectronics X-NUCLEO-DO4xA1 Digital Output Expansion Boards are designed for the STM32 Nucleo. The STMicroelectronics X-NUCLEO-DO4xA1 expansion boards provide a powerful, flexible environment for evaluating the driving/diagnostic capabilities of the IPS4140HQ quad high-side smart power solid-state relay in a digital output module connected to ≤0.6A industrial loads. The X-NUCLEO-DO4xA1 expansion boards offer two application sides (a logic side and a process side) electrically separated by the 2.8kV_RMS galvanic isolation featured by the STISO621 digital isolators. The logic side is the application side where the MCU operates, and it is supplied by the VISO_L rail (3.3V or 5.0V, according to the setting of SW1). The onboard Arduino UNO R3 connectors enable the connection to either a NUCLEO-F401RE or a NUCLEO-G431RB development board. The boards can also evaluate a system consisting of an X-NUCLEO-DO40A1 expansion board stacked on other expansion boards compatible with logic signal assignments.