si6963bdq-rc

Si6963BDQ_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
24.8736
N/A
28.5067
RT2
6.8016
N/A
15.2315
RT3
70.9289
N/A
33.3805
RT4
47.3959
N/A
2.8813
Thermal Capacitance (Joules/°C)
Junction to
Ambient
Case
Foot
CT1
5.8589 m
N/A
11.2005 m
CT2
1.8241 m
N/A
3.9988 m
CT3
14.1363 m
N/A
30.6373 m
CT4
1.6678
N/A
434.1574 u
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: 74839
Revision: 10-Jul-07
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Si6963BDQ_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
18.1299
N/A
3.7502
RF2
40.2959
N/A
26.0342
RF3
44.5423
N/A
28.9295
RF4
47.0319
N/A
21.2861
Thermal Capacitance (Joules/°C)
Junction to
Ambient
Case
Foot
CF1
1.3357 m
N/A
347.1420 u
CF2
4.9577 m
N/A
2.1365 m
CF3
10.2156 m
N/A
7.0796 m
CF4
1.5908
N/A
17.1357 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: 74839
Revision: 10-Jul-07
Si6963BDQ_RC
Vishay Siliconix
Document Number: 74839
Revision: 10-Jul-07
www.vishay.com
3