IRAM136-1061A
160
140
120
100
80
60
40
F PWM = 12kHz
F PWM = 16kHz
F PWM = 20kHz
0
1
2
3
4
5
6
7
8
Output Phase Current - A RMS
Figure 8. Maximum Allowable Case Temperature vs. Output RMS Current per Phase
Sinusoidal Modulation, V + =400V, T J =150°C, MI=0.8, PF=0.6, fmod=50Hz
160
T J avg = 1.28 x T Therm + 7.57
150
140
130
120
110
100
90
65
70
75
80
85
90
95
100
105
110
115
Internal Therm istor Tem perature Equivalent Read Out - °C
Figure 9. Estimated Maximum IGBT Junction Temperature vs. Thermistor Temperature
Sinusoidal Modulation, V+=400V, Iphase=5Arms, fsw=16kHz, fmod=50Hz, MI=0.8, PF=0.6
12
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