The Chargers scored the first nine points of the second half, taking their first lead on the Eagles since late in the first quarter. But the Eagles since have answered.
The Chargers trailed the Eagles 10-7 at halftime.
Hopkins’ 30-yard field goal with 10:33 remaining in the third quarter tied the game.
Herbert now is 22-of-26 for 285 yards and two touchdowns, and Keenan Allen has eight catches for 70 yards.