88 lines
2.6 KiB
Plaintext
Executable File
88 lines
2.6 KiB
Plaintext
Executable File
* Copyright (c) 2016 Linear Technology Corporation. All rights reserved.
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* Author: Dan Eddleman
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*
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*SOAtherm Heat Sink Model
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***************************************************************
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.subckt copper Tc Tinterface Tfin
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R_theta Tfin Ambient {Rtheta}
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V1 Ambient 0 {Tambient}
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R_interface Tinterface Tc {Rinterface}
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*O§HeatSink Tinterface 0 Tfin 0 Copper
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.param depth_mm={Volume_mm3/Area_Contact_mm2}
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.param r_per_mm={2.5/Area_Contact_mm2}
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.param c_per_mm={400*8.96e-6*Area_Contact_mm2}
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.param depth0=depth_mm/pow(2,10)
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.param depth1=depth0*2
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.param depth2=depth1*2
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.param depth3=depth2*2
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.param depth4=depth3*2
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.param depth5=depth4*2
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.param depth6=depth5*2
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.param depth7=depth6*2
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.param depth8=depth7*2
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.param depth9=depth8*2+depth0
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r0 Tinterface n0 {r_per_mm*depth0}
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c0 n0 0 {c_per_mm*depth0}
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r1 n0 n1 {r_per_mm*depth1}
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c1 n1 0 {c_per_mm*depth1}
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r2 n1 n2 {r_per_mm*depth2}
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c2 n2 0 {c_per_mm*depth2}
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r3 n2 n3 {r_per_mm*depth3}
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c3 n3 0 {c_per_mm*depth3}
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r4 n3 n4 {r_per_mm*depth4}
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c4 n4 0 {c_per_mm*depth4}
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r5 n4 n5 {r_per_mm*depth5}
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c5 n5 0 {c_per_mm*depth5}
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r6 n5 n6 {r_per_mm*depth6}
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c6 n6 0 {c_per_mm*depth6}
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r7 n6 n7 {r_per_mm*depth7}
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c7 n7 0 {c_per_mm*depth7}
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r8 n7 n8 {r_per_mm*depth8}
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c8 n8 0 {c_per_mm*depth8}
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r9 n8 Tfin {r_per_mm*depth9}
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c9 Tfin 0 {c_per_mm*depth9}
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.param Tambient=85 Depth_mm=10 Area_Contact_mm2=100 Rtheta=10 Rinterface={100/Area_Contact_mm2}
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.ends copper_test
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.subckt aluminum Tc Tinterface Tfin
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R_theta Tfin Ambient {Rtheta}
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V1 Ambient 0 {Tambient}
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R_interface Tinterface Tc {Rinterface}
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.param depth_mm={Volume_mm3/Area_Contact_mm2}
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.param r_per_mm={1/(0.22*Area_Contact_mm2)}
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.param c_per_mm={896*2.7e-6*Area_Contact_mm2}
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.param depth0=depth_mm/pow(2,10)
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.param depth1=depth0*2
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.param depth2=depth1*2
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.param depth3=depth2*2
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.param depth4=depth3*2
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.param depth5=depth4*2
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.param depth6=depth5*2
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.param depth7=depth6*2
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.param depth8=depth7*2
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.param depth9=depth8*2+depth0
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r0 Tinterface n0 {r_per_mm*depth0}
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c0 n0 0 {c_per_mm*depth0}
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r1 n0 n1 {r_per_mm*depth1}
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c1 n1 0 {c_per_mm*depth1}
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r2 n1 n2 {r_per_mm*depth2}
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c2 n2 0 {c_per_mm*depth2}
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r3 n2 n3 {r_per_mm*depth3}
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c3 n3 0 {c_per_mm*depth3}
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r4 n3 n4 {r_per_mm*depth4}
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c4 n4 0 {c_per_mm*depth4}
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r5 n4 n5 {r_per_mm*depth5}
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c5 n5 0 {c_per_mm*depth5}
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r6 n5 n6 {r_per_mm*depth6}
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c6 n6 0 {c_per_mm*depth6}
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r7 n6 n7 {r_per_mm*depth7}
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c7 n7 0 {c_per_mm*depth7}
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r8 n7 n8 {r_per_mm*depth8}
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c8 n8 0 {c_per_mm*depth8}
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r9 n8 Tfin {r_per_mm*depth9}
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c9 Tfin 0 {c_per_mm*depth9}
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.param Tambient=85 Depth_mm=10 Area_Contact_mm2=100 Rtheta=10 Rinterface={100/Area_Contact_mm2}
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.ends aluminum |