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Thermal Resistance of Excalibur Devices
Table 1 provides qJA (junction-to-ambient thermal resistance) and qJC (junction-to-case thermal resistance) values for Altera® Excalibur devices.
| Table 1. Thermal Resistance of Excalibur Embedded Processor Solutions |
| Device |
Pin Count |
Package |
qJC (C/W)
|
qJA (C/W)Still Air |
qJA (C/W)100 ft./min. |
qJA (C/W)200 ft./min. |
qJA (C/W)400 ft./min. |
| EPXA1 |
484
|
FineLine® BGA (FBGA) |
4.0
|
20.0
|
18.3
|
15.8
|
13.9
|
| 672 |
Flip Chip FBGA (Cu lid) |
0.52
|
11.3
|
9.3
|
7.9
|
6.7
|
| 672 |
Flip Chip FBGA (AlSiC lid) |
0.78
|
12.2
|
10.2
|
8.6
|
7.2
|
| EPXA4 |
672 |
Flip Chip FBGA (Cu lid) |
0.21
|
10.8
|
8.8
|
7.3
|
6.2
|
| 672 |
Flip Chip FBGA (AlSiC lid) |
0.31
|
11.6
|
9.6
|
7.9
|
6.6
|
| 1,020 |
Flip Chip FBGA (Cu lid) |
0.21
|
9.9
|
7.9
|
6.5
|
5.4
|
| 1,020 |
Flip Chip FBGA (AlSiC lid) |
0.32
|
10.4
|
8.5
|
6.9
|
5.7
|
| EPXA10 |
1,020 |
Flip Chip FBGA (Cu lid) |
0.11
|
9.6
|
7.6
|
6.2
|
5.1
|
| 1,020 |
Flip Chip FBGA (AlSiC lid) |
0.17
|
10.0
|
8.0
|
6.4
|
5.2
|
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