V23990-K220-A40-PM
D8,D9,D10,D11,D12,D13
Figure 1
D8,D9,D10,D11,D12,D13 diode
Figure 2
D8,D9,D10,D11,D12,D13 diode
Typical diode forward current as
a function of forward voltage
IF= f(VF)
Diode transient thermal impedance
as a function of pulse width
ZthJH = f(tp)
101
100
10-1
10-2
75
60
45
30
15
D = 0,5
0,2
0,1
0,05
0,02
0,01
0,005
Tj = Tjmax-25°C
Tj = 25°C
0
0.000
VF (V)
t p (s)
0
0,5
1
1,5
10-5
10-4
10-3
10-2
10-1
100
1010
1
At
tp =
At
tp / T
1,25
250
۷s
D =
RthJH
=
K/W
Figure 3
Power dissipation as a
D8,D9,D10,D11,D12,D13 diode
Figure 4
Forward current as a
D8,D9,D10,D11,D12,D13 diode
function of heatsink temperature
function of heatsink temperature
Ptot = f(Th)
IF = f(Th)
120
90
60
30
0
50
40
30
20
10
0
T h
(
o C)
T h (
o C)
120
0
30
60
90
120
150
0
30
60
90
150
At
At
Tj =
Tj =
150
ºC
150
ºC
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11
Revision: 3.1