Ownership and License

The contributors are listed in CONTRIB.TXT.

Licenses	OSHWA UID

Overview

The EEZ DIB DCM224 Power module features dual sync buck converters based on LT3763 with programmable output voltage, PWM dimming and current limit.

r3B2 prototype

Feature list

• On-board STM32F373 MCU 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
• CE certified design

Firmware repository

https://github.com/eez-open/dib-dcm224-fw
The firmware download procedure is described in Chapter 13.2 of the User Manual.