50WQ04FN Datasheet, PDF (4/5 Pages) International Rectifier – SCHOTTKY RECTIFIER

50WQ04FN
Bulletin PD-20524 rev. F 06/04
155
150
145
DC
140
135 _{Square wave (D = 0.50)}
80%Rated V_R applied
130
125
see note (2)
120
012345678
Average Forward Current - I _F(AV) (A)
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
1000
4
D = 0.20
3.5
D = 0.25
D = 0.33
3
D = 0.50
D = 0.75
2.5
RMS Limit
2
DC
1.5
1
0.5
0
012345678
Average Forward Current - I _F(AV) (A)
Fig. 6 - Forward Power Loss Characteristics
100
At Any Rated Load Condition
And With Rated Vrrm Applied
Following Surge
10
10
100
1000
10000
Square Wave Pulse Duration - t _p (microsec)
Fig. 7 - Maximum Non-Repetitive Surge Current
(2) Formula used: T_C = T_J - (Pd + Pd_REV) x R_thJC;
Pd = Forward Power Loss = I_F(AV) x V_FM @ (I_F(AV) / D) (see Fig. 6);
Pd_REV = Inverse Power Loss = V_R1 x I_R (1 - D); I_R @ V_R1 = 80% rated V_R
4
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