AON7421
TYPICAL ELECTRICAL AND THERMAL CHARACTERISTICS
1000
-I
AR
(A) Peak Avalanche Current
T
A
=25°C
100
T
A
=150°C
T
A
=100°C
100
Power Dissipation (W)
1000
80
60
10
T
A
=125°C
40
20
1
1
10
100
Time in avalanche, t
A
(µs)
µ
Figure 12: Single Pulse Avalanche capability
(Note C)
0
0
75
100
125
T
CASE
(°
C)
Figure 13: Power De-rating (Note F)
25
50
150
70
60
-Current rating I
D
(A)
50
40
30
20
10
0
0
75
100
125
T
CASE
(°
C)
Figure 14: Current De-rating (Note F)
25
50
150
Power (W)
10000
T
A
=25°C
1000
100
17
5
2
10
10
1
0.00001
0.1
10
0
1000
Pulse Width (s)
18
Figure 15: Single Pulse Power Rating Junction-to-
Ambient (Note H)
0.001
10
Z
θ
JA
Normalized Transient
Thermal Resistance
D=T
on
/T
T
J,PK
=T
A
+P
DM
.Z
θJA
.R
θJA
1
R
θJA
=55°C/W
In descending order
D=0.5, 0.3, 0.1, 0.05, 0.02, 0.01, single pulse
40
0.1
P
D
T
on
0.001
0.0001
0.001
0.01
0.1
1
10
100
1000
Pulse Width (s)
Figure 16: Normalized Maximum Transient Thermal Impedance (Note H)
0.01
Single Pulse
T
5/6
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