Thermal Model Parameters DESCRIPTION parametric values thermal mo
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Si7840BDP_RC
Thermal Model Parameters
DESCRIPTION parametric values thermal model have been derived using curve-fitting techniques. These techniques described Simple Method Generating Thermal Models Power MOSFET"[1]. When implemented P-Spice, these values have matching characteristic curves Single Pulse Transient Thermal Impedance curves MOSFET.
values electrical circuit Foster/Tank Cauer/Filter configurations included.
Note:
detailed explanation implementing these values P-SPICE, refer Application Note AN609 Thermal Simulations Power MOSFETs P-SPICE Platform.
THERMAL MODEL TANK CONFIGURATION
VALUES TANK CONFIGURATION
Thermal Resistance (°C/W) Junction Junction Ambient 1.6612 12.9010 9.6360 45.6388 Ambient 1.7031 400.0587 33.4493 1.5835 Case 1.3966 801.1570 1.6272 1.1889 Case 65.3575 824.4103 12.7868 11.5522 Foot Foot
Thermal Capacitance (Joules/°C)
This document intended SPICE modeling guideline does constitute commercial product data sheet. Designers should refer appropriate data sheet same number guaranteed specification limits.
Document Number: 73646 Revision 02-Dec-05
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Si7840BDP_RC
THERMAL MODEL FILTER CONFIGURATION
VALUES FILTER CONFIGURATION
Thermal Resistance (°C/W) Junction Junction
Note: indicates applicable
Ambient 8.8695 5.2485 12.5339 43.0731 Ambient 12.1549 167.0679 184.4786 1.3995
Case 1.8143 882.7411 1.7054 1.0056 Case 149.0229 399.0460 5.1724 1.8524
Foot Foot
Thermal Capacitance (Joules/°C)
Reference: Simple Method Generating Thermal Models Power MOSFET" Wharton McDaniel Kandarp Pandya, IEEE SEMITHERM 2002
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Document Number: 73646 Revision 02-Dec-05
Si7840BDP_RC
Document Number: 73646 Revision 02-Dec-05
www.vishay.com
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