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BQ21040: Charge current

Part Number: BQ21040

Hi Sir 

May I use BQ21040 for 0.7A charge current ?

I saw the RθJA is 130.8 °C/W ,if the Vin is 5V and Vbat is 3V

The power dissipation is (5Vin - 3Vbat)*0.7A = 1.4W

Tj=25°C+1.4*130.8 = 208.12°C

I think 208°C is too hot ,Have anything I misunderstanding