EP2C70 datasheet(5/7 Pages) ALTERA

5 / 7 page

Altera Corporation

DS-CYTHRML-3.0

Altera Device Package Information Data Sheet

Cyclone II

Devices

Table 5 provides

θJA (junction-to-ambient thermal resistance) and θJC

(junction-to-case thermal resistance) values for Cyclone II devices.

EP3C80

U484

15.9

13.8

12.1

6.3

F484

17.7

13.7

11.8

10.3

5.2

F780

15.9

12.2

10.5

9.1

5.1

EP3C120

F484

16.8

12.9

9.4

4.4

F780

15.1

11.4

9.6

8.3

4.2

Table 4. Thermal Resistance of Cyclone III Devices for Typical Board (Part 2 of 2)

Device

Package

θJA (°C/W)

Still Air

θJA (°C/W)

100 ft./min.

θJA (°C/W)

200 ft./min.

θJA (°C/W)

400 ft./min.

θJB (°C/W)

Table 5. Thermal Resistance of Cyclone II Devices

Device

Package

θJA (°C/W)

0 ft./min.

θJA (°C/W)

100 ft./min.

θJA (°C/W)

200 ft./min.

θJA (°C/W)

400 ft./min.

θJC (°C/W)

EP2C5

F256

30.2

26.1

23.6

21.7

8.7

T144

29.3

27.9

25.5

Q208

30.4

29.2

27.3

22.3

5.5

EP2C8

F256

27.0

23.0

20.5

18.5

7.1

T144

29.8

28.3

26.9

24.9

9.9

Q208

30.2

28.2

26.9

21.7

5.4

EP2C20

Q240

26.6

24.0

21.4

17.4

4.2

F256

24.2

20.0

17.8

16.0

5.5

F484

21.0

17.0

14.8

13.1

4.2

T144

27.6

26.4

25.4

23.8

9.6

EP2C35

F484

19.4

15.4

13.3

11.7

3.3

U484

20.6

16.6

14.5

12.8

5.0

F672

18.6

14.6

12.6

11.1

3.1

EP2C50

F484

18.4

14.4

12.4

10.9

2.8

U484

19.6

15.6

13.6

11.9

4.4

F672

17.7

13.7

11.8

10.2

2.6

EP2C70

F672

16.9

13.0

11.1

9.7

2.2

F896

16.3

11.9

10.5

9.1

2.1

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