209CNQ Datasheet, PDF (4/5 Pages) International Rectifier – SCHOTTKY RECTIFIER

209CNQ... Series
Bulletin PD-20722 rev. B 07/01
180
160
DC
140
120
100 _{Square wave (D = 0.50)}
Rated VRapplied
80
see note (2)
60
0
30 60
90 120 150
Average Forward Current - I_{F (AV)} (A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current
10000
140
D = 0.20
120 D = 0.25
D = 0.33
100 ^{D = 0.50}
D = 0.75
80
DC
60 ^{RMS Limit}
40
20
0
0
30
60 90 120 150
AverageForwardCurrent - I_F(AV) (A)
Fig. 6 - Forward Power Loss Characteristics
1000
At Any Rated Load Condition
And With Rated VRRM Applied
Following Surge
DUT
C URRE NT
M ONITOR
100
10
100
1000
10000
Square Wave Pulse Duration - t _p (microsec)
Fig. 7 - Max. Non-Repetitive Surge Current
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 = rated V_R
4
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