When determining whether a device can meet your current and voltage needs there is helpful information found in the datasheet.
For all of these devices there is an Insulation Specifications section that specifies creepage, clearance, and voltage ratings.
We also provide a Safe Operating Area (SOA) plot. An example is shown below. This plot shows the maximum current the device can handle without being damaged based on the ambient temperature. If the device is operated outside of the conditions shown in the SOA curve, TI cannot guarantee that the device will operate according to datasheet specifications.
Our devices are rated for a specified working voltage, but our Insulation Lifetime plots (as shown below) often lead customers to question whether they can push beyond the working voltage. The device may work at an increased voltage, but this will typically lead to a shorter product life time and more failures. Furthermore, as a higher voltage is outside of TI recommended operating conditions we cannot guarantee the functionality of the part in these conditions. Note that the plot shown is for an AC voltage test.
In conclusion customers often want to push our devices beyond their rated current or voltage specifications. However, the information in the datasheet specify what conditions TI will guarantee the functionality of our part.
