SiHP22N60S_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. R-C values for the electrical circuit in the Foster/tank and Cauer/filter configurations are included. When implemented in P-SPICE, these values have matching characteristic curves to the single-pulse transient thermal impedance curves for the MOSFET. These RC values can be used in the P-SPICE simulation to evaluate the thermal behavior of the MOSFET junction temperature under a defined power profile. These techniques are described in application note AN609, “Thermal Simulation of Power MOSFETs on the P-SPICE Platform”. R-C THERMAL MODEL FOR TANK CONFIGURATION T (Junction) RT1 RT2 RT3 RT4 CT1 CT2 CT3 CT4 T (Ambient) R-C VALUES FOR TANK CONFIGURATION THERMAL RESISTANCE (°C/W) Junction to Ambient Case Foot RT1 N/A 141.6648m N/A RT2 N/A 122.8854m N/A RT3 N/A 217.6129m N/A RT4 N/A 18.0072m N/A Junction to Ambient Case Foot CT1 N/A 97.5541m N/A CT2 N/A 21.2377m N/A CT3 N/A 159.4988m N/A CT4 N/A 3.1916 N/A THERMAL CAPACITANCE (Joules/°C) Note N/A indicates not applicable This document is intended as a SPICE modeling guideline and does not constitute a commercial product datasheet. Designers should refer to the appropriate datasheet of the same number for guaranteed specification limits. Document Number: 90736 Revision: 23-Aug-11 www.vishay.com 1 This document is subject to change without notice. THE PRODUCT DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 SiHP22N60S_RC Vishay Siliconix R-C THERMAL MODEL FOR FILTER CONFIGURATION T (Junction) RF2 RF1 CF1 CF2 RF3 RF4 T (Ambient) CF4 CF3 GND R-C VALUES FOR FILTER CONFIGURATION THERMAL RESISTANCE (°C/W) Junction to Ambient Case Foot RF1 N/A 99.4988m N/A RF2 N/A 342.7297m N/A RF3 N/A 57.0811m N/A RF4 N/A 2.0512m N/A THERMAL CAPACITANCE (Joules/°C) Junction to Ambient Case Foot CF1 N/A 10.8329m N/A CF2 N/A 31.5274m N/A CF3 N/A 953.4375m N/A CF4 N/A 1.4823 N/A Note N/A indicates not applicable www.vishay.com 2 Document Number: 90736 Revision: 23-Aug-11 This document is subject to change without notice. THE PRODUCT DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 SiHP22N60S_RC Vishay Siliconix Document Number: 90736 Revision: 23-Aug-11 www.vishay.com 3 This document is subject to change without notice. THE PRODUCT DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000