Si4392DY-RC

Si4392DY_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
10.4113
N/A
6.0448
RT2
3.9640
N/A
2.0658
RT3
20.2637
N/A
4.5367
RT4
55.1735
N/A
7.3694
Thermal Capacitance (Joules/°C)
Junction to
Ambient
Case
Foot
CT1
23.2596 m
N/A
37.9136 m
CT2
3.6109 m
N/A
1.4121 m
CT3
97.4843 m
N/A
11.6129 m
CT4
1.5032
N/A
200.6871 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: 73823
Revision 02-Mar-06
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Si4392DY_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
6.6798
N/A
3.0102
RF2
20.1253
N/A
8.1843
RF3
14.8475
N/A
6.6156
RF4
48.7035
N/A
2.2015
Thermal Capacitance (Joules/°C)
Junction to
Ambient
Case
Foot
CF1
3.0324 m
N/A
1.3575 m
CF2
27.3271 m
N/A
8.4713 m
CF3
257.9096 m
N/A
85.1777 m
CF4
1.5513
N/A
578.1296 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: 73823
Revision 02-Mar-06
Si4392DY_RC
Vishay Siliconix
Document Number: 73823
Revision 02-Mar-06
www.vishay.com
3