V23990-P768-A50-PM
Input Rectifier Bridge
Figure 1
Rectifier diode
Figure 2
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
150
125
100
75
D = 0,5
0,2
50
0,1
0,05
25
0,02
0,01
0,005
0.000
t p (s)
0
10-2
10-5
VF (V)
4
0
0,8
1,6
2,4
3,2
10-4
10-3
10-2
10-1
100
1012
10
At
At
Tj =
tp =
tp / T
0,74
25/125 °C
D =
RthJH
=
250
ꢁs
K/W
Figure 3
Rectifier diode
Figure 4
Forward current as a
Rectifier diode
Power dissipation as a
function of heatsink temperature
function of heatsink temperature
Ptot = f(Th)
IF = f(Th)
300
250
200
150
100
50
90
80
70
60
50
40
30
20
10
0
0
T h
(
o C)
T h (
o C)
0
50
100
150
200
0
50
100
150
200
At
At
Tj =
Tj =
150
ºC
150
ºC
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20
Revision: 1
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