Si8413DB-RC

Si8413DB_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
13.3312
N/A
8.6072
RT2
16.6030
N/A
1.1928
RT3
8.6883
N/A
3.2165
RT4
46.1721
N/A
6.9605
Thermal Capacitance (Joules/°C)
Junction to
Ambient
Case
Foot
CT1
6.4860 m
N/A
2.9728 m
CT2
1.1631 m
N/A
736.7198 u
CT3
161.8455 m
N/A
13.6910 m
CT4
1.2544
N/A
3.4065 m
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: 73678
Revision 20-Dec-05
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Si8413DB_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
20.4833
N/A
2.5867
RF2
13.1870
N/A
7.6648
RF3
12.6172
N/A
7.3328
RF4
38.5821
N/A
2.4236
Thermal Capacitance (Joules/°C)
Junction to
Ambient
Case
Foot
CF1
913.9546 u
N/A
482.4989 u
CF2
8.1690 m
N/A
958.4250 u
CF3
404.4938 m
N/A
222.3754 u
CF4
1.0914
N/A
2.0874 m
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: 73678
Revision 20-Dec-05
Si8413DB_RC
Vishay Siliconix
Document Number: 73678
Revision 20-Dec-05
www.vishay.com
3