I would like to set an undervoltage error threshold value at the 5V isolated output, which should? The datasheet specifies something similar for 3V3, but not for 5V output.
The UVLO threshold is set internally in the ADum540x and can't be changed externally. The rising UVLO level set is about 2.7V and is the VDD1 or VISO voltage where the digital isolator has enough voltage to begin to correctly send data across the digital isolator channels. Can you describe what the concern is about the use of the ADuM540x with UVLO levels?
The question is about the expected minimum output voltage when 5V are expected in the isolated area.
The question is very simple, please do not go beyond the question itself.The question is: whic should be the expected minimum output voltage in the isolated side if 5V output is expected? Thanks.
Landa: I think you want to know what the lowest value of output voltage at Viso when set for 5V by VSEL? If so the datasheet specification is for 4.7V min, as shown below. This applies over voltage range of VDD1 = 4.5 to 5.5V, for temp -40 to 105C.
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