This would be the maximum junction temperature in °C that the device can reach respecting the operating conditions:
TJ(max) = TA(max) + PD(max) x ΘJA
Junction to ambient (°C/W) or (K/W)
Junction to board (°C/W) or (K/W)
Junction to case(°C/W) or (K/W)
I didn't find the information in the datasheet.
Can you help me ?