Datasheet

1.1 Characteristics (curves)
Figure 1. Average forward power dissipation versus
average forward current
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
0 2 4 6 8 10 12 14 16 18 20 22 24 26
I
F(AV)
(A)
P
F(AV)
(W)
δ = 0.05
δ = 0.1
δ = 0.2
δ = 0.5
δ = 1
T
δ
=tp/T
tp
Figure 2. Average forward current versus ambient
temperature (δ = 0.5)
0
2
4
6
8
10
12
14
16
18
20
22
0 25 50 75 100 125 150 175
T
amb
(°C)
I
F(AV)
(A)
R
th(j-a)
= R
th(j-c)
R
th(j-a)
= 15°C/W
T
δ
=tp/T
tp
Figure 3. Normalized avalanche power derating versus
pulse duration (T
j
= 125 °C)
P (t
p
)
P (10 µs)
ARM
ARM
0.001
0.01
0.1
1
1 10 100 1000
t (µs)
p
Figure 4. Relative variation of thermal impedance junction
to case versus pulse duration
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.E-03 1.E-02 1.E-01 1.E+00
t
P
(s)
Z
th(j-c)
/R
th(j-c)
Single pulse
STPS20120D
Characteristics (curves)
DS4232 - Rev 2
page 3/9