I am using a Linkswitch-TN LNK302 in an industrial application that requires a worst case input supply voltage from 45.6Vac to 276Vac. The voltage will usually range from 57V to 230V. The circuit is configured in a buck-boost configuration generating negative 5V, the input AC is half-wave rectified. My circuit uses on average 50mA. I have built a few of these power supplies up and I can even get them to start as low as 20Vac. My concern is the PIXls design’s warning of a minimum of 70VDC input. I would like to know if it would be safe for me to use the Linkswitch-TN LNK302 with an input voltage as low as 45Vac.