203CMQ080 Datasheet, PDF (4/5 Pages) International Rectifier – SCHOTTKY RECTIFIER

203CMQ... Series
Bulletin PD-20565 rev. B 08/01
180
170
160
150
140
DC
130
120
110
100 ^{Square w ave (D = 0.50)}
90 ^{80% Rated V R applied}
80
70
60 _{see note (2)}
50
0 25 50 75 100 125 150
Average Forw ard Current - I _F(AV) (A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
100
90
D = 0.20
D = 0.25
80 ^{D = 0.33}
D = 0.50
70 _{D = 0.75}
60
50
RM S Lim it
DC
40
30
20
10
0
0 25 50 75 100 125 150
Average Forw ard Current - I _F(AV) (A)
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
100000
A t An y Rated Load C on dition
A nd W ith Rated V _RRM A pplied
Followin g Surge
10000
DUT
CURRENT
M O N ITO R
1000
10
100
1000
10000
Square W ave Pulse D uration - t _p (m icrosec)
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
L
IRFP460
Rg = 25 ohm
HIG H-SPEED
SW ITC H
FREE-W HE EL
D IO D E
40H FL40S02
+ ^{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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