203CNQ100 Datasheet, PDF (4/5 Pages) International Rectifier – SCHOTTKY RECTIFIER

203CNQ...(R) Series
Bulletin PD-2.259 rev. E 07/01
180
170
160
DC
150
140
Square wave (D = 0.50)
13 0 _{80% Rated V R applied}
120
110
see note (2)
100
0
25 50
75 100 125 150
Average Forw ard Curren t - 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
At An y Rated Load C ondition
An d W ith Rated V _RRM Applied
Followin g Surge
10000
DUT
C URRE NT
M ONITOR
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
IR F P 46 0
Rg = 25 ohm
HIG H-SPEED
SW ITC H
FR EE-W HEEL
D IO D E
4 0H FL40 S02
+ ^{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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