Thermal Model Parameters parametric values thermal model have bee

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Thermal Model Parameters parametric values thermal model have bee

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Si4425DDY_RC
Thermal Model Parameters
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 21.9911 4.8812 13.2176 44.9101 Ambient 99.6328 1.6908 25.2812 1.4391 Case Case Foot 2.1071 11.3302 6.4311 2.1316 Foot 407.0236 79.8938 10.8470 771.1516
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: 64742 Revision: 06-Feb-09
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Si4425DDY_RC
THERMAL MODEL FILTER CONFIGURATION
VALUES FILTER CONFIGURATION
Thermal Resistance (°C/W) Junction Junction Note indicates applicable Ambient 5.8554 20.5201 17.5920 41.0325 Ambient 1.5987 19.4079 118.2516 1.4594 Case Case Foot 2.4477 4.5195 4.3715 10.6613 Foot 822.4695 8.1293 4.2300 70.8548
Thermal Capacitance (Joules/°C)
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Document Number: 64742 Revision: 06-Feb-09
Si4425DDY_RC
Document Number: 64742 Revision: 06-Feb-09
www.vishay.com

Thermal Model Parameters parametric values thermal model have bee

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