20CJQ045 Datasheet, PDF (4/6 Pages) International Rectifier – SCHOTTKY RECTIFIER, 2Amp

20CJQ045
Vishay High Power Products ^{Schottky Rectifier, 2 x 1 A}
150
140
130
120
DC
110
100 _{Square wave (D = 0.50)}
90 ^{80%Rated V} R ^applied
80
70
see note (1)
60
0 0.5 1 1.5 2 2.5 3
Average Forward Current - I _F(AV) (A)
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current (Per Leg)
2.5
D = 0.20
D = 0.25
2 D = 0.33
D = 0.50
D = 0.75
1.5
RMS Limit
DC
1
0.5
0
0 0.5 1 1.5 2 2.5 3
Average Forward Current - I _F(AV) (A)
Fig. 6 - Forward Power Loss Characteristics (Per Leg)
1000
At Any Rated Load Condition
And With Rated V_RRM Applied
Following Surge
100
10
10
100
1000
10000
Square Wave Pulse Duration - t _p (microsec)
Fig. 7 - Maximum Non-Repetitive Surge Current (Per Leg)
D.U.T.
Current
monitor
L
IRFP460
R_g = 25 Ω
High-speed
switch
Freewheel
diode
+ ^{Vd = 25 V}
40HFL40S02
Fig. 8 - Unclamped Inductive Test Circuit
Note
(1) _{Formula used: TC = TJ - (Pd + PdREV) x RthJC;}
Pd = Forward power loss = I_F(AV) x V_FM at (I_F(AV)/D) (see fig. 6);
Pd_REV = Inverse power loss = V_R1 x I_R (1 - D); I_R at V_R1 = 80 % rated V_R
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4
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Document Number: 93272
Revision: 22-Aug-08