KU80960CF-25(1995) 查看數據表（PDF） - Intel
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KU80960CF-25 Datasheet PDF : 62 Pages
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SPECIAL ENVIRONMENT 80960CF-30 -25 -16
3 5 Package Thermal Specifications
The 80960CF is specified for operation when TC
(the case temperature) is within the range of
b40 C – a110 C TC may be measured in any envi-
ronment to determine whether the 80960CF is within
specified operating range The case temperature is
measured at the center of the top surface opposite
the pins Refer to Figure 7
TA (the ambient temperature) can be calculated
from iCA (thermal resistance from case to ambient)
with the following equation
TA e TC b P iCA
Table 8 shows the maximum TA allowable (without
exceeding TC) at various airflows and operating fre-
quencies (fPCLK)
Note that TA is greatly improved by attaching fins or
a heat sink to the package P (the maximum power
consumption) is calculated by using the typical ICC
as tabulated in Section 4 4 DC Specifications and
VCC of 5V
Table 8 Maximum TA at Various Airflows In C (PGA Package Only)
Airflow-ft min (m sec)
fPCLK
0
200
400
600
800
(MHz)
(0)
(1 01)
(2 03)
(3 04)
(4 06)
TA
33
38
57
74
76
81
with
25
50
65
79
81
85
Heat Sink
16
63
74
84
86
89
TA
without
33
18
33
47
57
66
25
34
46
57
65
72
Heat Sink
16
51
60
68
74
80
0 285 high unidirectional heat sink (Al alloy 6061 50 mil fin width 150 mil center-to-center fin spacing)
1000
(5 07)
84
87
90
67
74
81
PGA Thermal Resistance C Watt
Airflow ft min (m sec)
Parameter
0 200 400 600 800 1000
(0) (1 01) (2 03) (3 07) (4 06) (5 07)
i Junction-to-Case
(Case Measured
15 15 15 15 15 15
as shown in Figure 7)
i Case-to-Ambient
(No Heatsink)
17 14
11
9
71 66
i Case-to-Ambient
(with Unidirectional) 13 9
Heatsink)
55 50 39 34
NOTES
1 This table applies to 80960CF PGA plugged into socket or soldered directly
into board
2 iJA e iJC a iCA
3 iJ-CAP e 4 C W (approx )
iJ-PIN e 4 C W (inner pins) (approx )
iJ-PIN e 8 C W (outer pins) (approx )
0 285 high unidirectional heat sink (Al alloy 6061 50 mil fin width 150 mil
center-to-center fin spacing)
Figure 6 80960CF PGA Package Thermal Characteristics
271328 – 6
20
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