EDIT : I was making a mistake and there isn't an issue in the data sheet (see answer below). Keeping here for reference to others.
The STEF01 is an electronic fuse by ST with features such as soft start, overcurrent protection, undervoltage protection, overvoltage protection:
The overvoltage protection is configured by setting values for R1 and R2, but I can't understand how this is done correctly.
Page 9 of the data sheet has the following equation:
e.g. for a VClamp of 48V: R2 = 100k, R1 ~= 18128k However this doesn't match the values denoted in the graph:
(the equation doesn't seem to match the graph).
Page 8 states that the internal divider current is fixed to 10 uA. This is a bit strange and might be the key to understanding this.