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Application Note
© 2021 ROHM Co., Ltd.
No. 64AN100E Rev.001
DEC 2021
Thermal Resistance Modeling Report
Two-Resistor Model:
BM2SC12xFP2-LBZ Series
This application note provides the information needed to create a two-resistor model for thermal simulation of the SiC-MOSFET
internal quasi-resonant AC/DC converter IC BM2SC12xFP2-LBZ Series. The thermal simulations mentioned here cover three-
dimensional thermal conduction and thermal fluid analysis tools.
Product Summary
Model name: BM2SC121FP2-LBZ BM2SC122FP2-LBZ
BM2SC123FP2-LBZ BM2SC124FP2-LBZ
Package name: TO263-7L
Function:
SiC-MOSFET internal quasi-resonant AC/DC converter IC
See Datasheet for more details.
Thermal Resistance
Element
Value
θ
JCtop
35.9 [°C/W]
θ
JB
4.8 [°C/W]
Case Node
Board Node
Junction
Node
θ
JCtop
θ
JB
2-resistor model network
3D Model Shape
Two-resistor model
Detailed model
References
[1] JESD15-3:2008, Two-Resistor Compact Thermal Model
Guideline
[2] ‘Two-Resistor Model for Thermal Simulation’ ROHM
R1102
B
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Notes
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