Datasheet

STPS1150 Characteristics
Doc ID 9472 Rev 5 3/11
Figure 1. Average forward power
dissipation versus average
forward current
Figure 2. Average forward current versus
ambient temperature (δ = 0.5)
P (W)
F(AV)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
0.0 0.2 0.4 0.6 0.8 1.0 1.2
I (A)
F(AV)
T
δ
=tp/T
tp
δ = 1
δ = 0.5
δ = 0.05
δ = 0.1
δ = 0.2
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0 25 50 75 100 125 150 175
STmite and STmite flat
R
th(j-a)
= R
th(j-c)
SMA
R
th(j-a)
= R
th(j-l)
DO-41
R
th(j-a)
= R
th(j-l)
R
th(j-a)
= 250 °C/W
R
th(j-a)
= 120 °C/W
T
δ = t / T
p
t
p
I (A)
F(AV)
T (°C)
amb
Figure 3. Normalized avalanche power
derating versus pulse duration
Figure 4. Normalized avalanche power
derating versus junction
temperature
0.001
0.01
0.10.01 1
0.1
10 100 1000
1
t (µs)
p
P(t
p
)
P (1 µs)
ARM
ARM
0
0.2
0.4
0.6
0.8
1
1.2
25 50 75 100 125 150
T (°C)
j
P(T
j
)
P (25 °C)
ARM
ARM
Figure 5. Non repetitive surge peak
forward current versus overload
duration - maximum values
Figure 6. Non repetitive surge peak
forward current versus overload
duration - maximum values
0
2
4
6
8
10
12
14
16
18
20
1.E-03 1.E-02 1.E-01 1.E+00
STmite
I (A)
M
t(s)
I
M
t
δ = 0.5
T = 25 °C
c
T = 75 °C
c
T = 125 °C
c
0
2
4
6
8
10
12
14
16
18
20
1.E-
03
1.E-
0
2 1.E-
0
1 1.E+
00
STmite flat
I (A)
M
t(s)
I
M
t
δ = 0.5
T = 25 °C
c
T = 75 °C
c
T = 125 °C
c