30BQ040 Datasheet, PDF (4/6 Pages) International Rectifier – SCHOTTKY RECTIFIER

30BQ040
Bulletin PD-2.439 rev. G 07/04
160
D=0.20
150
DC
D=0.25
D=0.33
140
D=0.50
130
D=0.75
120
110
100
90 ^{Square wave (D = 0.50)}
80% Rated Vr applied
80
see note (2)
70
0
1
2
3
4
5
Average Forward Current - I _F(AV) (A)
Fig. 4 - Maximum Average Forward Current
Vs. Allowable Lead Temperature
10000
2
D = 0.75
D = 0.50
D = 0.33
D = 0.25
1.5 _{D = 0.20}
DC
RMS Limit
1
0.5
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
Average Forward Current - I _F(AV) (A)
Fig. 5 - Maximum Average Forward Dissipation
Vs. Average Forward Current
1000
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. 6 - Maximum Peak Surge Forward Current Vs. Pulse Duration
(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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