si1419dh-rc

Si1419DH_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
31.7025
N/A
16.3442
RT2
9.6490
N/A
5.8412
RT3
27.6701
N/A
6.4092
RT4
55.6058
N/A
16.6502
Thermal Capacitance (Joules/°C)
Junction to
Ambient
Case
Foot
CT1
2.4370 m
N/A
1.4474 m
CT2
296.8566 u
N/A
165.7211 u
CT3
34.2014 m
N/A
159.1680 m
CT4
1.2932
N/A
4.0724 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: 74972
Revision 12-Mar-07
www.vishay.com
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Si1419DH_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
15.6106
N/A
9.3126
RF2
32.9349
N/A
21.7163
RF3
25.5324
N/A
8.4387
RF4
52.7888
N/A
5.5442
Thermal Capacitance (Joules/°C)
Junction to
Ambient
Case
Foot
CF1
310.9572 u
N/A
170.4864 u
CF2
2.7712 m
N/A
1.1574 m
CF3
45.0379 m
N/A
1.9990 m
CF4
1.3696
N/A
191.7478 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: 74972
Revision 12-Mar-07
Si1419DH_RC
Vishay Siliconix
Document Number: 74972
Revision 12-Mar-07
www.vishay.com
3