40L40CWPBF Datasheet, PDF (4/6 Pages) International Rectifier – SCHOTTKY RECTIFIER 2 x 20 Amps

40L40CWPbF, 40L45CWPbF
Bulletin PD-20794 rev. A 11/06
150
140
DC
130
120 ^{Square wave (D = 0.50)}
80%Rated V_R applied
18
D = 0.20
16 _{D = 0.25}
14
D = 0.33
D = 0.50
12 ^{D = 0.75}
10
RMS Limit
DC
8
6
110
see note (2)
100
0
5 10 15 20 25 30
4
2
0
0
5 10 15 20 25 30
Average Forward Current - I _F(AV) (A)
Average Forward Current - I _F(AV) (A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
10000
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
At Any Rated Load Condition
And With Rated V_RRM Applied
Following Surge
1000
DUT
CURRENT
MONITOR
100
10
100
1000
10000
Square Wave Pulse Duration - t _p (microsec)
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
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
40L45CWPbF revA.pmd
4
21-Nov-06, 11:05
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