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ADUM6401 Different Power and Logic Voltage

Question asked by shang on Feb 26, 2015
Latest reply on Feb 27, 2015 by bkennedy

Hi all,


I'm attempting to use the ADUM6401 to send 5V power over an isolation barrier but 3.3V logic as well. In the datasheet, it states that VDD1 and VDDL need to be connected together. Is it possible to have different logic and power supply voltage levels? I am limited on space so I would prefer not put in external logic shifters. In summary, I want 5V power in, 3.3V logic in, 5V power out and 3.3V logic out.