**Part Number:**TPS2662

For my safety application I need to show that the part is being used at no more than 75% of rated power at the temperature it is used at.

The data sheet shows theta J parameters but does not say a max wattage nor does it say a temperature range that the theta J value runs between.

By setting max recommended operating condition of 125C, this would normally imply that power must be zero at 125C, but several lines of the data sheet show ratings for current at the full -40C to 125C range, so obviously this does not de-rate to zero power at 125C.

Please provide information that can help me calculate the "power derating line" from 0 power to full power.

Alternatively, if you say I can always go with max programmed current at 880mA (the current max) AT 125C then I could de-rate to 75% of 880mA and still run at 125C??

Thanks

Glen