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Digital power supply control kit based on STM32G474RE

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Product overview


The STEVAL-DPSG474 is a digital power supply control kit. It consists of a main board, based on the STM32G474RE microcontroller from the STM32G4 family, and an adapter board, which provides different communication interfaces and allows programming the microcontroller through a standard 20-pin JTAG connector.

The STM32G474RE microcontroller includes the high-performance Arm® Cortex® M4 32-bit RISC core operating at up to 170 MHz frequency, a floating point unit (FPU), a full set of DSP (digital signal processing) instructions, and high-speed embedded memories (512 Kbytes of flash memory and 128 Kbytes of SRAM).

The device embeds peripherals that allow the mathematical/arithmetic function acceleration (CORDIC for trigonometric functions and FMAC unit for filter functions).

The MCU offers five fast 12-bit ADCs (5 Msps), seven ultra-fast comparators, six operational amplifiers, seven DAC channels (three external and four internal), a low-power RTC, 32-bit timers, three timers dedicated to motor control, seven general-purpose 16-bit timers, one 16-bit low-power timer, and the high-resolution timer (HRTIM) with 184 ps resolution, specifically designed to drive power conversion systems.

The main board embeds a standard 64-pin DIN 41612 connector for connection with a power board. It provides all the PWM control signals, sensing networks, and protection features needed for a wide range of digital power supply applications.

An external 5 V supply voltage can supply the board either through a dedicated connector or through the main connector. The adapter board features a configurable user communication (SMBus, CAN, or RS-232) with two DB9 connectors and the appropriate transceiver ICs, a standard STDC14 14-pin connector, which provides the SWD interface for debugging and USART communication for user interface (UI), and the standard JTAG connector for programming.

The board also includes a reset button and a termination resistance between the CAN lines.

You can easily connect the STEVAL-DPSG474 to another control board via opto-coupled serial communication and dedicated connectors.

  • All features

    • Control board for digital SMPS (PFC converters, HF isolating DC-DC converters, DC-AC inverters) based on the STM32G474RE microcontroller:
      • High-resolution timer (HRTIM) for D-SMPS applications
      • Filter math accelerator unit (FMAC) to perform arithmetic operations on vectors
      • Coprocessor (CORDIC) to provide hardware acceleration of trigonometric functions
    • 64-pin DIN 41612 connector for D-SMPS modular approach
    • STDC14 programming connector
    • Opto-coupled serial communication for board-to-board communication
    • RC filters for analog inputs
    • Protection of the microcontroller analog lines with diode arrays
    • ESD protection on SWD and COM lines
    • Adapter board provided for programming and user communication (USART, CAN, SMBus)
    • Supply voltage: 5 V
    • Embedded 5 V/3.3 V voltage regulator
    • Dedicated test points for debugging
    • LED signaling for power-on, faults, errors, and general purpose
    • RoHS compliant

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
CARD Industrial Ecopack2 Yes




Material Declaration**:

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RoHS Compliance Grade


(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors