www.irf.com © 2014 International Rectifier Submit Datasheet Feedback November 14, 2014
7
IRGP4690DPbF/IRGP4690D-EPbF
Fig. 26. Maximum Transient Thermal Impedance, Junction-to-Case (DIODE)
Fig 25. Maximum Transient Thermal Impedance, Junction-to-Case (IGBT)
1E-006 1E-005 0.0001 0.001 0.01 0.1 1
t
1
, Rectangular Pulse Duration (sec)
0.0001
0.001
0.01
0.1
1
T
h
e
r
m
a
l
R
e
s
p
o
n
s
e
(
Z
t
h
J
C
)
0.20
0.10
D = 0.50
0.02
0.01
0.05
SINGLE PULSE
( THERMAL RESPONSE )
Notes:
1. Duty Factor D = t1/t2
2. Peak Tj = P dm x Zthjc + Tc
τ
J
τ
J
τ
1
τ
1
τ
2
τ
2
τ
3
τ
3
R
1
R
1
R
2
R
2
R
3
R
3
Ci= τi/Ri
τ
C
τ
4
τ
4
R
4
R
4
Ri (°C/W) τi (sec)
0.00738 0.000009
0.09441
0.000179
0.13424 0.002834
0.09294
0.0182
1E-006 1E-005 0.0001 0.001 0.01 0.1 1
t
1
, Rectangular Pulse Duration (sec)
0.0001
0.001
0.01
0.1
1
10
T
h
e
r
m
a
l
R
e
s
p
o
n
s
e
(
Z
t
h
J
C
)
0.20
0.10
D = 0.50
0.02
0.01
0.05
SINGLE PULSE
( THERMAL RESPONSE )
Notes:
1. Duty Factor D = t1/t2
2. Peak Tj = P dm x Zthjc + Tc
τ
J
τ
J
τ
1
τ
1
τ
2
τ
2
τ
3
τ
3
R
1
R
1
R
2
R
2
R
3
R
3
Ci= τi/Ri
τ
C
τ
4
τ
4
R
4
R
4
Ri (°C/W) τi (sec)
0.02738 0.000053
0.34077
0.000485
0.41380 0.005203
0.22819
0.034407
