SUD50P04-09L-RC

SUD50P04-09L_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)
Foot
Junction to
Ambient
Case
RT1
1.4554
113.2223 u
N/A
RT2
12.5124
502.7505 m
N/A
RT3
25.6250
314.1307 m
N/A
RT4
10.1693
283.3527 m
N/A
Thermal Capacitance (Joules/°C)
Junction to
Ambient
Case
Foot
CT1
1.0884 m
5.3736 u
N/A
CT2
1.6515
40.9686 m
N/A
CT3
1.7830
169.9421 m
N/A
CT4
109.5321 m
2.2444 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: 69625
Revision: 18-Sep-07
www.vishay.com
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SUD50P04-09L_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
1.6136
198.3346 m
N/A
RF2
12.0299
212.2665 m
N/A
RF3
14.4150
113.8168 m
N/A
RF4
21.8186
573.4861 m
N/A
Thermal Capacitance (Joules/°C)
Junction to
Ambient
Case
Foot
CF1
2.4056 m
1.7325 m
N/A
CF2
95.2080 m
4.8215 m
N/A
CF3
607.6779 m
37.5796 m
N/A
CF4
871.5875 m
4.6520 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
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Document Number: 69625
Revision: 18-Sep-07
SUD50P04-09L_RC
Vishay Siliconix
Document Number: 69625
Revision: 18-Sep-07
www.vishay.com
3