S3PDB18
Three Phase Bridge Rectifiers
160
1000
A2s
VR = 0 V
A
A
140
T
VJ = 25 o C
22
120
100
80
60
40
0
IF
IFSM
20
18
16
f
= 50 Hz
I2t
VR = 0. 8V
RRM
TVJ = 45 o C
14
12
10
TVJ = 125 o C
TVJ=125 o C
TVJ = 125oC
TVJ= 25 o C
1. 0 1. 5
0
0. 0
100
0. 001
0. 01
0. 1
t
s
1
ms
t
0. 5
2. 0
V
1
10
VF
Fig.1 Forward current versus
voltage drop per diode
Fig. 2 Surge overload current
Fig. 3 I2t versus time per diode
120
50
A
RthHA [K/W]
110
100
0.4
1
2
40
W
90
Id( AV) M
5
10
80
70
60
50
40
30
20
10
0
Pt ot
30
20
10
0
0
5
10 15 20 25 30 35 40 A0
Id( AV) M
30
60
90
TA
120
150 oC180
oC
0
40
80
120
160
TH
Fig. 4 Power dissipation versus direct output current
and ambient tempreature, sine180
Fig. 5 Max. forward current
vs. case temperature
5
K/W
4
Constantsfor ZthJC calculation:
Z
t hJC
i
Rthi (K/W)
t (s)
i
1
2
3
4
0.302
1.252
1.582
1.164
0.002
0.032
0.227
0.82
3
2
1
0
0. 001
0. 01
0. 1
1
10 s
t
Fig. 6 Transient the rmal impedance junction to case
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