V23990-P719-*-PM
Input rectifier diode
Figure 1
Input rectifier diode
Figure 2
Input rectifier 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
100
80
60
40
D = 0,5
0,2
0,1
0,05
0,02
0,01
0,005
0.000
t p (s)
20
Tj = Tjmax-25°C
Tj = 25°C
0
VF (V)
0
0,5
1
1,5
2
10-5
10-4
10-3
10-2
10-1
100
101
1
At
At
tp =
tp / T
250
ꢀs
D =
RthJH
=
0,967
K/W
Figure 3
Power dissipation as a
Input rectifier diode
Figure 4
Forward current as a
Input rectifier diode
function of heatsink temperature
function of heatsink temperature
Ptot = f(Th)
IF = f(Th)
160
120
80
120
100
80
60
40
20
0
40
0
T h
(
o C)
T h (
o C)
150
0
30
60
90
120
150
0
30
60
90
120
At
At
Tj =
Tj =
150
ºC
150
ºC
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9
Revision: 3
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