NCV8184(2019) 데이터 시트보기 (PDF) - ON Semiconductor
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NCV8184 Datasheet PDF : 20 Pages
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NCV8184
Table 2. SOIC−8 EP THERMAL RC NETWORK MODELS*
Drain Copper Area (1 oz thick)
100 mm2
645 mm2
100 mm2
645 mm2
(SPICE Deck Format)
C_C1
C_C2
C_C3
C_C4
C_C5
C_C6
C_C7
C_C8
C_C9
C_C10
Junction
node1
node2
node3
node4
node5
node6
node7
node8
node9
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
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
node1
node2
node3
node4
node5
node6
node7
node8
node9
gnd
Cauer Network
100 mm2
0.0000015
645 mm2
0.0000015
0.0000059
0.0000059
0.0000171
0.0000172
0.0001359
0.0001360
0.0001349
0.0001352
0.0011157
0.0011253
0.0110409
0.0118562
0.0963225
0.2080891
0.3406538
1.1005982
0.9202956
100 mm2
0.8512155
645 mm2
0.8378620
0.8378491
1.9693564
1.9692100
5.0005397
4.9993083
3.0695514
3.0646169
3.1989711
3.1895109
6.2274239
6.1397875
13.5796441 11.9712961
40.4842477 18.5111622
30.5112160 10.0330297
33.6034987 27.3017101
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
9.11
52.1
R’s
0.49519
1.070738
3.385971
1.617537
5.030483
7.00
12.00
17.676107
25.169021
65.037264
Tau
1.00E-06
1.00E-05
1.00E-04
1.76E-04
0.0010
0.008
0.150
3.00
5.12
68.6
R’s
0.49519
1.070738
3.385971
1.617537
5.030483
7.00
12.00
7.880592
8.550583
40.98639
*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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