Current version



Completed, ready for production

PCB manufactured

Yes (r3B2)

PCB assembled

Yes (r3B2)



File repository



TAPR v1.0


C4.1 (Collective Code Construction Contract)

Fig. 1: DCM224 r3B2

Feature list

  • On-board STM32F373C8T6 32-bit ARM Cortex®-M4 MCU, 64 KiB Flash, 32 KiB SRAM, LQFP-48 package
  • Power input: 48 Vdc (e.g. Mean Well LRS-150F-48)
  • Combined max. output power: up to 155 W
  • Separate control of each power outputs
  • Voltage regulation (CV), 1 – 24 V. Voltage set resolution (U_SET): 12-bit, read resolution (U_MON): 15-bit
  • Current regulation (CC), up to 4.9 A. Current set resolution (I_SET): 12-bit, read resolution (I_MON): 15-bit
  • PWM LED dimming
  • MCU generated two counterphase switching frequencies
  • On-board power pre-regulator and bias power supply
  • Output Enable (OE) and Constant Current mode (CC) LED indications
  • Output LC filter for improved ripple and noise
  • On-board 4 mm power output terminals with standard (19.05 mm) pitch
  • Pass-thru connector for Vout- coupling with other DIB power modules
  • Galvanically isolated SPI bus for communication with MCU board
  • I2C EEPROM for storing board specific configuration and calibration parameters
  • Dimensions: 155 x 95 mm, 4-layer PCB