MBRS320 Datasheet, PDF (4/6 Pages) Fairchild Semiconductor – SCHOTTKY POWER RECTIFIER

MBRS320
Bulletin PD-20645 rev. D 03/03
155
150
145
140
135
130 ^{Square wave}
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
DC
125 _{see note (2)}
120
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 Current
Vs. Allowable Lead Temperature
1000
1.6
D = 0.20
1.4 D = 0.25
D = 0.33
1.2 _{D = 0.50}
D = 0.75
1
0.8 ^{RMS Limit}
0.6
DC
0.4
0.2
0
0
1
2
3
4
5
Average Forward Current - I _F(AV) (A)
Fig. 6 - Maximum Average Forward Dissipation
Vs. Average Forward Current
Tj = 25˚C
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 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)
4
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