Thermal Model Parameters DESCRIPTION parametric values thermal mo
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Si4972DY_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 54.8842 29.4964 18.4819 6.8802 Ambient 1.3522 55.0173 13.4487 1.8083 Ambient 52.2946 8.7466 31.0163 27.5612 Ambient 1.5115 237.7467 77.7767 8.1745 Case Case Foot 12.1500 5.1562 9.6674 12.9979 Foot 9.5372 352.1553 53.2271 3.4701 Foot 25.3252 2.4693 15.4441 6.5508 Foot 3.7227 1.9238 70.1255 494.7954
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: 74301 Revision: 12-Jun-07
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Si4972DY_RC
THERMAL MODEL FILTER CONFIGURATION
VALUES FILTER CONFIGURATION
Thermal Resistance (°C/W) Junction Junction
Note: indicates applicable
Ambient 17.5401 36.7047 42.3908 13.3139 Ambient 2.8328 23.9144 1.0823 3.9200
Ambient 9.0563 31.3852 29.3289 49.8636 Ambient 235.8178 6.7497 64.2917 1.4656
Case Case
Foot 8.0392 22.6159 3.8078 5.4927 Foot 415.4909 2.4696 30.1241 29.5966
Foot 8.6592 25.0686 7.8110 8.3753 Foot 322.9454 2.4730 28.3107 117.1709
Thermal Capacitance (Joules/°C)
Reference: Simple Method Generating Thermal Models Power MOSFET" Wharton McDaniel Kandarp Pandya, IEEE SEMITHERM 2002
www.vishay.com
Document Number: 74301 Revision: 12-Jun-07
Si4972DY_RC
Document Number: 74301 Revision: 12-Jun-07
www.vishay.com
Si4972DY_RC
www.vishay.com
Document Number: 74301 Revision: 12-Jun-07
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