IRPT2051 International Rectifier Corp., IRPT2051 Datasheet - Page 6

• Manufacturer Part Number: IRPT2051
• Manufacturer: International Rectifier Corp.

IRPT2051
page 6
Operating Conditions: V
Operating Conditions: V
Figure 5a. 7.5hp/12.5A output Heat Sink Thermal Resistance and Power Dissipation vs. PWM Frequency
Figure 5b. 5hp/8.25A output Heat Sink Thermal Resistance and Power Dissipation vs. PWM Frequency
1.4
1.2
0.8
0.6
0.4
0.2
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
1
0
0
in
in
Pow er
100%
= 460V
= 460V
Power
150%
R
Dow n to 3 Hz
thSA 150% Load (1 min.)
1
1
rms
rms
Power
100%
MI=1.15, PF-0.8, T
MI=1.15, PF-0.8, T
R thSA 150% Load (1 min.)
Down to 3 Hz
4
4
R thSA 100% Load Continuous
R
10-60 Hz
10-60 Hz
thS A 100% Load Continuous
(Induction Motor Load)
(Induction Motor Load)
8
8
P WM Frequency (kHz)
A
A
PWM Frequency (kHz)
=40°C, Z
=40°C, Z
R thSA 150% Load (1 m in.)
10-60 Hz
T herm al Resistance (R
Total Pow er Dissipatio n (Watts)
T hermal Resistan ce (R
To tal Pow er Dissipation (Watts)
12
12
thSA
thSA
limits temperature rise (ÐT
limits temperature rise (ÐT
16
16
R thSA 150% Load (1 min.)
10-60 Hz
th SA
P ower
150%
thSA
¡C/W)
¡C/W)
20
20
2 hp
(1.5 kW)
3 hp
(2.2 kW)
c
c
) during 1 minute overload to 10°C
) during 1 minute overload to 10°C
24
24
200
180
160
140
120
100
80
60
40
20
0
300
250
200
150
100
50
0