Datasheet
IRGS/SL/B/P4640D/EPbF
8 www.irf.com © 2015 International Rectifier Submit Datasheet Feedback January 20, 2015
Fig. 25 - Maximum Transient Thermal Impedance, Junction-to-Case (IGBT-TO247 Pak)
Fig. 26 - Maximum Transient Thermal Impedance, Junction-to-Case (DIODE– TO-247 Pak)
Notes:
V
CC
= 80% (V
CES
), V
GE
= 20V, L = 100µH, R
G
= 10Ω.
R
θ
is measured at T
J
of approximately 90°C.
Refer to AN-1086 for guidelines for measuring V
(BR)CES
safely.
Pulse width limited by maximum junction temperature.
Values influenced by parasitic L and C in measurement.
When mounted on 1” square PCB (FR-4 or G-10 Material). For recommended footprint and soldering techniques refer to application
note #AN-994.http://www.irf.com/technical-info/appnotes/an-994.pdf
1E-006 1E-005 0.0001 0.001 0.01 0.1
t
1
, Rectangular Pulse Duration (sec)
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
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
τ
C
τ
C
Ci= τi/Ri
Ci= τi/Ri
Ri (°C/W)
τi (sec)
0.693 0.001222
0.621 0.005254
0.307 0.038140
τ
J
τ
J
τ
1
τ
1
τ
2
τ
2
R
1
R
1
R
2
R
2
τ
C
τ
C
Ci= τi/Ri
Ci= τi/Ri
Ri (°C/W)
τi (sec)
0.2568 0.000311
0.3429 0.006347