Thermal Model Parameters DESCRIPTION parametric values thermal mo
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Si7980DP_RC
Thermal Model Parameters
DESCRIPTION parametric values thermal model have been derived using curve-fitting techniques. values electrical circuit Foster/Tank Cauer/Filter configurations included. When implemented P-SPICE, these values have matching characteristic curves single-pulse transient thermal impedance curves MOSFET.
These values used P-SPICE simulation evaluate thermal behavior MOSFET junction temperature under defined power profile. These techniques described Application Note AN609, "Thermal Simulation Power MOSFETs P-Spice Platform."
THERMAL MODEL TANK CONFIGURATION
VALUES TANK CONFIGURATION
Thermal Resistance (°C/W) Junction Junction Ambient Channel 6.1994 16.0233 20.2819 45.4954 Ambient Channel 659.0079 21.0634 341.5476 2.0034 Ambient Channel 6.8067 13.5941 17.1741 45.4251 Ambient Channel 1.1554 24.1894 326.1981 1.4890 Case Channel 1.7922 1.8337 571.3000 2.1028 Case Channel 16.4313 544.2037 2.3995 2.1094 Case Channel 1.5119 1.6890 521.7000 1.9774 Case Channel 20.5978 575.1787 2.4479 2.4358 Foot Foot
Thermal Capacitance (Joules/°C)
This document intended SPICE modeling guideline does constitute commercial product data sheet. Designers should refer appropriate data sheet same number guaranteed specification limits.
Document Number: 68705 Revision: 09-May-08
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Si7980DP_RC
THERMAL MODEL FILTER CONFIGURATION
VALUES FILTER CONFIGURATION
Thermal Resistance (°C/W) Junction Junction
Note: indicates applicable
Ambient Channel 6.5003 17.0799 26.7464 37.6734 Ambient Channel 637.0891 18.3485 262.1416 2.1880
Ambient Channel 6.0912 15.9706 24.2796 36.6586 Ambient Channel 752.2680 16.9097 261.2141 1.5724
Case Channel 1.7388 2.0798 1.9808 500.6000 Case Channel 373.0803 489.1923 10.1939 3.2458
Case Channel 1.1722 2.0180 1.9977 512.1000 Case Channel 419.6078 246.5867 8.5505 2.5898
Foot Foot
Thermal Capacitance (Joules/°C)
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Document Number: 68705 Revision: 09-May-08
Si7980DP_RC
Document Number: 68705 Revision: 09-May-08
www.vishay.com
Si7980DP_RC
www.vishay.com
Document Number: 68705 Revision: 09-May-08
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