SUD50N06-36_RC Vishay Siliconix R-C Thermal Model Parameters DESCRIPTION The parametric values in the R-C thermal model have been derived using curve-fitting techniques. These techniques are described in "A Simple Method of Generating Thermal Models for a Power MOSFET"[1]. When implemented in P-Spice, these values have matching characteristic curves to the Single Pulse Transient Thermal Impedance curves for the MOSFET. R-C values for the electrical circuit in the Foster/Tank and Cauer/Filter configurations are included. Note: For a detailed explanation of implementing these values in P-SPICE, refer to Application Note AN609 Thermal Simulations Of Power MOSFETs on P-SPICE Platform. R-C THERMAL MODEL FOR TANK CONFIGURATION R-C VALUES FOR TANK CONFIGURATION Thermal Resistance (°C/W) Junction to Ambient Case Foot RT1 3.2035 1.2603 N/A RT2 26.4704 1.0375 N/A RT3 16.2843 809.9000 m N/A RT4 6.0418 2.0923 N/A Thermal Capacitance (Joules/°C) Junction to Ambient Case Foot CT1 599.1012 u 1.5159 m N/A CT2 4.7811 335.3878 u N/A CT3 1.2787 207.9560 m N/A CT4 116.1746 m 10.8832 m N/A This document is intended as a SPICE modeling guideline and does not constitute a commercial product data sheet. Designers should refer to the appropriate data sheet of the same number for guaranteed specification limits. Document Number: 70476 Revision: 03-May-07 www.vishay.com 1 SUD50N06-36_RC Vishay Siliconix R-C THERMAL MODEL FOR FILTER CONFIGURATION R-C VALUES FOR FILTER CONFIGURATION Thermal Resistance (°C/W) Junction to Ambient Case Foot RF1 3.1866 1.3136 N/A RF2 6.8815 1.7548 N/A RF3 21.3879 1.3611 N/A RF4 20.5440 770.5000 m N/A Thermal Capacitance (Joules/°C) Junction to Ambient Case Foot CF1 608.3905 u 226.8507 u N/A CF2 95.4496 m 1.5660 m N/A CF3 836.6297 m 14.1467 m N/A CF4 4.5749 159.1429 m N/A Note: NA indicates not applicable Reference: [1] "A Simple Method of Generating Thermal Models for a Power MOSFET" by Wharton McDaniel and Kandarp Pandya, IEEE / SEMITHERM 2002 www.vishay.com 2 Document Number: 70476 Revision: 03-May-07 SUD50N06-36_RC Vishay Siliconix Document Number: 70476 Revision: 03-May-07 www.vishay.com 3