sum90n08-4m8p-rc

SUM90N08-4m8P_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
141.7251 m
N/A
RT2
N/A
88.3714 m
N/A
RT3
N/A
231.1810 m
N/A
RT4
N/A
38.7225 m
N/A
Thermal Capacitance (Joules/°C)
Junction to
Ambient
Case
Foot
CT1
N/A
111.9545 m
N/A
CT2
N/A
46.4999 m
N/A
CT3
N/A
264.1647 m
N/A
CT4
N/A
10.8135 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: 69835
Revision: 08-Nov-07
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SUM90N08-4m8P_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
N/A
80.7834 m
N/A
RF2
N/A
172.5803 m
N/A
RF3
N/A
135.1016 m
N/A
RF4
N/A
111.5347 m
N/A
Thermal Capacitance (Joules/°C)
Junction to
Ambient
Case
Foot
CF1
N/A
8.5974 m
N/A
CF2
N/A
28.2127 m
N/A
CF3
N/A
78.2834 m
N/A
CF4
N/A
384.8007 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: 69835
Revision: 08-Nov-07
SUM90N08-4m8P_RC
Vishay Siliconix
Document Number: 69835
Revision: 08-Nov-07
www.vishay.com
3