SUP90N08-4m8P_RC

SUP90N08-4m8P_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
N/A
32.5705 m
N/A
RT2
N/A
59.8803 m
N/A
RT3
N/A
91.5983 m
N/A
RT4
N/A
316.6188 m
N/A
Thermal Capacitance (Joules/°C)
Junction to
Ambient
Case
Foot
CT1
N/A
676.1971 m
N/A
CT2
N/A
160.4 727 m
N/A
CT3
N/A
12.8460 m
N/A
CT4
N/A
121.3320 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: 68371
Revision: 03-Jan-08
www.vishay.com
1
SUP90N08-4m8P_RC
Vishay Siliconix
R-C THERMAL MODEL FOR FILTER CONFIGURATION
R-C VALUES FOR FILTER CONFIGURATION
Thermal Resistance (°C/W)
Foot
Junction to
Ambient
Case
RF1
N/A
4.7781 m
N/A
RF2
N/A
86.3667 m
N/A
RF3
N/A
130.8067 m
N/A
RF4
N/A
278.4771 m
N/A
Thermal Capacitance (Joules/°C)
Junction to
Ambient
Case
Foot
CF1
N/A
7.1512 m
N/A
CF2
N/A
3.5445 m
N/A
CF3
N/A
20.2097 m
N/A
CF4
N/A
97.1664 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: 68371
Revision: 03-Jan-08
SUP90N08-4m8P_RC
Vishay Siliconix
Document Number: 68371
Revision: 03-Jan-08
www.vishay.com
3