Beat cream cheese and sugar in large bowl with mixer until well blended. Add eggs and vanilla; beat well. Stir in 1 2/3rds cups mini chocolate chips; pour into crust. Bake at 450 for 10 minutes without opening oven door, reduce temperature down to 250; continue baking for an additional 30 minutes or until set. Remove from oven and cool completely. Cover and refrigerate until thoroughly chilled, 8 hours.