Si7384DP-RC

Si7384DP_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
38.0097
626.8248 m
N/A
RT2
11.6444
917.9595 m
N/A
RT3
16.7121
615.9675 m
N/A
RT4
3.6338
839.2482 m
N/A
Thermal Capacitance (Joules/°C)
Junction to
Ambient
Case
Foot
CT1
2.5147
849.0415 u
N/A
CT2
56.3927 m
7.2331 m
N/A
CT3
1.4208
41.4201 m
N/A
CT4
2.3469 m
7.8997 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: 69208
Revision: 23-Jul-07
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Si7384DP_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
3.8220
977.4601 m
N/A
RF2
12.2219
1.4695
N/A
RF3
27.1389
362.5592 m
N/A
RF4
26.8172
190.4807 m
N/A
Thermal Capacitance (Joules/°C)
Junction to
Ambient
Case
Foot
CF1
2.0776 m
713.7948 u
N/A
CF2
47.6072 m
3.1289 m
N/A
CF3
761.5892 m
17.1533 m
N/A
CF4
2.0814
14.2944 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: 69208
Revision: 23-Jul-07
Si7384DP_RC
Vishay Siliconix
Document Number: 69208
Revision: 23-Jul-07
www.vishay.com
3