NCV8184(2019) 데이터 시트보기 (PDF) - ON Semiconductor
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NCV8184 Datasheet PDF : 20 Pages
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NCV8184
Table 1. SOIC−8 THERMAL RC NETWORK MODELS*
Copper Area (1 oz thick)
100 mm2
645 mm2
100 mm2
645 mm2
C_C1
C_C2
C_C3
C_C4
C_C5
C_C6
C_C7
C_C8
C_C9
C_C10
R_R1
R_R2
R_R3
R_R4
R_R5
R_R6
R_R7
R_R8
R_R9
R_R10
Junction
node1
node2
node3
node4
node5
node6
node7
node8
node9
Junction
node1
node2
node3
node4
node5
node6
node7
node8
node9
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
node1
node2
node3
node4
node5
node6
node7
node8
node9
gnd
Cauer Network
100 mm2
645 mm2
0.0000015
0.0000015
0.0000059
0.0000059
0.0000171
0.0000171
0.0001340
0.0001340
0.0001322
0.0001323
0.0010797
0.0010811
0.0087127
0.0087918
0.0863882
0.0950421
0.3109255
1.0127094
0.8359004
100 mm2
1.5167041
645 mm2
0.8380955
0.8380935
1.9719907
1.9719679
5.0213740
5.0211819
3.1295806
3.1288061
3.2483544
3.2468794
6.5922506
6.5781209
16.5499898 16.2818051
45.3838437 34.7292748
32.8928798
7.6862725
37.5059686 24.4060143
Units
W−s/C
W−s/C
W−s/C
W−s/C
W−s/C
W−s/C
W−s/C
W−s/C
W−s/C
W−s/C
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
Foster Network
Tau
1.00E-06
1.00E-05
1.00E-04
1.76E-04
0.0010
0.008
0.150
3.00
8.96
52.5
R’s
0.49519
1.070738
3.385971
1.617537
5.10
7.00
15.00
20.00
28.19863
71.26626
Tau
1.00E-06
1.00E-05
1.00E-04
1.76E-04
0.0010
0.008
0.150
3.00
5.15
68.4
R’s
0.49519
1.070738
3.385971
1.617537
5.10
7.00
15.00
20.00
16.67727
33.54171
*Bold face items in the tables above represent the package without the external thermal system.
Units
sec
sec
sec
sec
sec
sec
sec
sec
sec
sec
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
The Cauer networks generally have physical significance
and may be divided between nodes to separate thermal
behavior due to one portion of the network from another.
The Foster networks, though when sorted by time constant
(as above) bear a rough correlation with the Cauer networks,
are really only convenient mathematical models. Cauer
networks can be easily implemented using circuit simulating
tools, whereas Foster networks may be more easily
implemented using mathematical tools (for instance, in a
spreadsheet program), according to the following formula:
S R(t) + n Ri ǒ1−e−tńtaui Ǔ
i+1
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