Thermal Model Parameters DESCRIPTION parametric values thermal mo
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Si4831DY_RC
Thermal Model Parameters
DESCRIPTION parametric values thermal model have been derived using curve-fitting techniques. These techniques described Simple Method Generating Thermal Models Power MOSFET"[1]. When implemented P-Spice, these values have matching characteristic curves Single Pulse Transient Thermal Impedance curves MOSFET.
values electrical circuit Foster/Tank Cauer/Filter configurations included.
Note:
detailed explanation implementing these values P-SPICE, refer Application Note AN609 Thermal Simulations Power MOSFETs P-SPICE Platform.
THERMAL MODEL TANK CONFIGURATION
VALUES TANK CONFIGURATION
Thermal Resistance (°C/W) Junction Junction Ambient Mosfet 10.0851 32.6453 25.5561 31.7135 Ambient Mosfet 2.6628 200.1796 18.3642 2.5761 Ambient Schottky 9.0059 25.9792 31.7767 43.2382 Ambient Schottky 2.6350 220.8691 18.9092 2.1843 Case Case Foot Mosfet 11.1407 2.7532 11.1806 7.9255 Foot Mosfet 176.8537 1.4631 22.5033 7.7879 Foot Schottky 10.3241 6.3737 12.8189 10.4465 Foot Schottky 54.3759 3.6461 126.9469 33.4888
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: 74602 Revision: 10-May-07
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Si4831DY_RC
THERMAL MODEL FILTER CONFIGURATION
VALUES FILTER CONFIGURATION
Thermal Resistance (°C/W) Junction Junction
Note: indicates applicable
Ambient Mosfet 12.7347 27.4584 33.7647 26.0422 Ambient Mosfet 2.2157 14.7425 185.8351 2.8695
Ambient Schottky 12.9698 36.9491 26.9554 33.1257 Ambient Schottky 2.6427 17.4469 335.7875 2.6910
Case Case
Foot Mosfet 1.9130 10.2106 14.2321 6.6443 Foot Mosfet 875.1501 2.8195 16.5928 351.3005
Foot Schottky 3.7846 10.3161 17.2606 8.6387 Foot Schottky 2.0044 5.0907 16.9068 110.9470
Thermal Capacitance (Joules/°C)
Reference: Simple Method Generating Thermal Models Power MOSFET" Wharton McDaniel Kandarp Pandya, IEEE SEMITHERM 2002
www.vishay.com
Document Number: 74602 Revision: 10-May-07
Si4831DY_RC
Document Number: 74602 Revision: 10-May-07
www.vishay.com
Si4831DY_RC
www.vishay.com
Document Number: 74602 Revision: 10-May-07
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