Thermal Characteristic - Infineon EVAL-IMI111T User Manual

EVAL-IMI111T user guide
iMOTION™ MADK starter kit for IMI111T IPMs
Thermal characterization
Thermal Characterization of IMI111T-026H vs IMI111T-046H, 3-phase PWM, ΔTca = 80°C, FR4 PCB
Figure 18
with 2 oz copper
5.1

Thermal characteristic

Table 11 Thermal Characteristics
Symbol Description
R Thermal resistance
th(C-A)_IMI111T-026H
Case to ambient
R
th(C-A)_IMI111T-046H
The value of R was obtained using a dissipated power of 2 W in the module and a FR4 PCB with 2 oz copper.
th(C-A)
The PCB layout is shown in Figure 19.
PCB layout used for thermal characterization: 2 oz copper, 2 layers
Figure 19
User guide
3-phase PWM, ∆Tca=80℃
600
500
400
300
200
100
0
0 5 10 15
PWM freq (kHz)
Min
---
Module
20 of 37
IMI111T-046H
IMI111T-026H
20 25
Typ Max
31 ---
30
Units
°C/W
V2.1
2022-12-9