STEVAL-DPS334C1

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Digital power supply control board based on STM32F334

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Parameter NameParameter Value
Operating RangeIndustrial
Target ApplicationDigital Power
Core ProductSTM32F334R8
ECCN US3A991.a.2
ECCN EUNEC
Packing TypeNot Applicable
RoHs compliantEcopack2
GradeIndustrial
Package NameCARD

The STEVAL-DPS334C1 is a digital power supply control kit, consisting of a main board based on the STM32F334R8 microcontroller from STM32F3 family and an adapter board to program the microcontroller.


The STM32F334R8 microcontroller includes the high-performance ARM® Cortex®-M4 32-bit RISC core operating at up to 72 MHz frequency, a floating point unit (FPU) and high-speed embedded memories (64 Kbytes of Flash memory and 16 Kbytes of SRAM). The MCU offers two fast 12-bit ADCs (5 Msps), three ultra-fast comparators, an operational amplifier, three DAC channels, a low-power RTC, one general-purpose, 32-bit timer, one timer dedicated to motor control, four general-purpose, 16-bit timers and the high-resolution timer (HRTIM), specifically designed to drive power conversion systems.


The main board embeds a standard 64-pin DIN 41612 connector for connection with a power board, providing all the control signals, sensing networks and protection features needed for a wide range of digital power supply applications. The board can be supplied by an external 5 V supply voltage either through a dedicated connector or through the main connector.


The adapter board provides a configurable user communication (SMBus, CAN or RS-232) with two DB9 connectors and the appropriate transceiver ICs, a dedicated 10-pin connector which provides the SWD interface for debugging and USART communication for user interface (UI), as well as the standard JTAG connector for programming. The board includes a reset button and a termination resistance between the CAN lines.


The STEVAL-DPS334C1 is designed to be easily connected with another control board via opto-coupled serial communication and dedicated connectors.

Key features
  • Control board for digital SMPS based on STM32F334 microcontroller
  • High-resolution timer (HRTIM) for DSMPS applications
  • 64-pin DIN 41612 connector for DSMPS modular approach
  • Opto-coupled serial communication for board-to-board communication
  • RC filters for analog inputs
  • Protection of analog lines of microcontroller with diode arrays
  • 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 and general purpose
  • RoHS compliant
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