20L15TPBF Datasheet, PDF (4/6 Pages) International Rectifier – SCHOTTKY RECTIFIER

20L15TPbF
Bulletin PD-20844 09/04
100
95
90
85 Square wave (D = 0.50)
80
75
se e note (2)
70
0
4
8
12 16 20 24
Average Forward Current - I _F(AV) (A)
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
1000
14
D = 0.20
12 ^{D = 0.25}
D = 0.33
D = 0.50
10 _{D = 0.75}
8
RMS Limit
DC
6
4
2
0
0
5 10 15 20 25 30
Average Forward Current - I _F(AV) (A)
Fig. 6 - Forward Power Loss Characteristics
DUT
CURRENT
MONITOR
At Any Rated Load Condition
And With Rated V_RRM Applied
Following Surge
100
10
100
1000
10000
Square Wave Pulse Duration - t _p (microsec)
Fig. 7 - Maximum Non-Repetitive Surge Current
L
IRFP460
Rg = 25 ohm
HIGH-SPEED
SWITCH
FREE-WHEEL
DIODE
40HFL40S02
+ ^{Vd = 25 Volt}
Fig. 8 - Unclamped Inductive Test Circuit
(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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