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Input / Output Voltages ADUM5211 (or 6211)

Can these devices be used with the "input" voltage at 3.3V, with the "output" (isolated side) voltage at 5.0V ?

  • Rod: These products, the ADuM521x and ADuM621x are not recommended for applications with 3.3V input and 5.0V output. The reason for this they are not designed for 3.3V to 5V and the internal transformers have a fixed ratio, which would limit the output current to less than the rated 20mA in the 3.3V input to 3.3V output, especially for when the input voltage is at 3.0V minimum.