Altera Device Package Information Data Sheet
Table 4. Thermal Resistance of Cyclone III Devices for Typical Board (Part 2 of 2)
Device
EP3C80
Package
U484
F484
F780
θ
JA
(
°
C/W)
Still Air
20
17.7
15.9
16.8
15.1
θ
JA
(
°
C/W)
100 ft./min.
15.9
13.7
12.2
12.9
11.4
θ
JA
(
°
C/W)
200 ft./min.
13.8
11.8
10.5
11
9.6
θ
JA
(
°
C/W)
400 ft./min.
12.1
10.3
9.1
9.4
8.3
θ
JB
(
°
C/W)
6.3
5.2
5.1
4.4
4.2
EP3C120
F484
F780
Cyclone II
Devices
Table 5
provides
θ
JA
(junction-to-ambient thermal resistance) and
θ
JC
(junction-to-case thermal resistance) values for Cyclone II devices.
Table 5. Thermal Resistance of Cyclone II Devices
Device
EP2C5
Package
F256
T144
Q208
θ
JA
(
0 ft./min.
30.2
31
30.4
27.0
29.8
30.2
26.6
24.2
21.0
27.6
19.4
20.6
18.6
18.4
19.6
17.7
16.9
16.3
θ
JA
(
°
C/W)
100 ft./min.
26.1
29.3
29.2
23.0
28.3
28.2
24.0
20.0
17.0
26.4
15.4
16.6
14.6
14.4
15.6
13.7
13.0
11.9
θ
JA
(
°
C/W)
200 ft./min.
23.6
27.9
27.3
20.5
26.9
26.9
21.4
17.8
14.8
25.4
13.3
14.5
12.6
12.4
13.6
11.8
11.1
10.5
θ
JA
(
°
C/W)
400 ft./min.
21.7
25.5
22.3
18.5
24.9
21.7
17.4
16.0
13.1
23.8
11.7
12.8
11.1
10.9
11.9
10.2
9.7
9.1
θ
JC
(°C/W)
8.7
10
5.5
7.1
9.9
5.4
4.2
5.5
4.2
9.6
3.3
5.0
3.1
2.8
4.4
2.6
2.2
2.1
EP2C8
F256
T144
Q208
EP2C20
Q240
F256
F484
T144
EP2C35
F484
U484
F672
EP2C50
F484
U484
F672
EP2C70
F672
F896
Altera Corporation
DS-CYTHRML-3.0
5
ALTERA [ ALTERA CORPORATION ]
