UFB80FA20 Datasheet, PDF (4/7 Pages) Vishay Siliconix – Insulated Ultrafast Rectifier Module, 80 A

VS-UFB80FA20
Vishay Semiconductors ^{Insulated Ultrafast Rectifier Module, 80 A}
175
150
125
DC
100
75 Square Wave (d = 0.5)
Rated V_r applied
50
25
0
0 20 40 60 80 100 120
I_F(AV) - Average Forward Current
Fig. 5 - - Maximum Allowable Case Temperature vs. Avarage
Forward Current (Per Leg)
80
70
60
50
RMS Limit
40
D = 0.05
30
D = 0.10
20
D = 0.20
D = 0.33
10
D = 0.50
DC
0
0 10 20 30 40 50 60 70 80
I_F(AV) - Average Forward Current (A)
Fig. 6 - Forward Power Loss Characteristics (Per Leg)
Note
(1) _{Formula used: TC = TJ - (Pd + PdREV) x RthJC;}
Pd = Forward power loss = I_F(AV) x V_FM at (I_F(AV)/D) (see fig. 6);
Pd_REV = Inverse power loss = V_R1 x I_R (1 - D); I_R at V_R1 = 80 % rated V_R
70
I_f = 30 A
60
V_rr = 100 V
50
T_J = 125 ˚ C
40
30
T_J = 25 ˚ C
20
10
100
1000
dI_F/dt (A/μs)
Fig. 7 - - Typical Reverse Recovery Time vs. dI_F/dt
550
500
450
400
350
300
250
200
150
100
50
0
100
I_f = 30 A
V_rr = 100 V
T_J = 125 °C
T_J = 25 °C
dI_F/dt (A/μs)
Fig. 8 - - Typical Stored Charge vs. dI_F/dt
1000
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Document Number: 93607
Revision: 12-May-11
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000