UFB120FA20 Просмотр технического описания (PDF) - International Rectifier
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UFB120FA20 Datasheet PDF : 6 Pages
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UFB120FA20
Bulletin PD-20487 12/01
150
140
130
120
DC
110
100 Square wave (D = 0.50)
80% Rated Vr applied
90 see note (3)
80
0 10 20 30 40 50 60 70
Average Forward Current - IF(AV)(A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (per diode)
80
If = 50A
70
Vrr = 200V
60
Tj = 125˚C
50
40
Tj = 25˚C
30
20
10
0
100
1000
diF /dt (A/µs )
Fig. 7 - Typical Reverse Recovery time vs. di F /dt
60
RMS Limit
50
40
DC
30
D = 0.01
D = 0.02
20
D = 0.05
D = 0.10
D = 0.20
10
D = 0.50
0
0 10 20 30 40 50 60 70
Average Forward Current - IF(AV)(A)
Fig. 6 - Forward Power Loss (per diode)
800
If = 50A
700 Vrr = 200V
600
500
Tj = 125˚C
400
300
200
100
Tj = 25˚C
0
100
1000
diF /dt (A/µs )
Fig. 8 - Typical Stored Charge vs. di F /dt
(3) Formula used: TC = TJ - (Pd + PdREV) x RthJC ;
Pd = Forward Power Loss = IF(AV) x VFM @ (IF(AV) / D) (see Fig. 6);
PdREV = Inverse Power Loss = VR1 x IR (1 - D); IR @ VR1 = 80% rated VR
4
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