General description

VIPer01

18/36

DocID028751 Rev 1

obtained through a transformer auxiliary winding or a connection from the output, the latter

in case of non-isolated topology only. In this case the residual consumption is given by the

= 30 MΩ) is 3.5 mW and

= 22 MΩ) is 4.8 mW.

When the IC is disconnected from the mains, or there is a mains interruption, for some time

the converter keeps on working, powered by the energy stored in the input bulk capacitor.

When it is discharged below a critical value, the converter is no longer able to keep the

output voltage regulated. During the power down, when the DRAIN voltage becomes too

Figure 26: Power-ON and power-OFF