20CTQ150 Datasheet, PDF (4/8 Pages) International Rectifier – SCHOTTKY RECTIFIER

20CTQ150, 20CTQ150S, 20CTQ150-1
Bulletin PD-20648 rev. C 09/04
180
170
DC
160
150 Square wave (D = 0.50)
80% Rated Vr applied
140 _{see note (2)}
130
0 2 4 6 8 10 12 14 16
Average Forward Current - I _F(AV) (A)
Fig. 5 - Maximum Average Forward Current
Vs. Allowable Lead Temperature
1000
10
D = 0.20
9 _{D = 0.25}
8 ^{D = 0.33}
D = 0.50
7 _{D = 0.75}
6
DC
5 RMS Limit
4
3
2
1
0
0
3
6
9 12 15
Average Forward Current - I _F(AV) (A)
Fig. 6 - Maximum Average Forward Dissipation
Vs. Average Forward Current
At Any Rated Load Condition
And With Rated Vrrm Applied
Following Surge
100
10
100
1000
10000
Square Wave Pulse Duration - t _p (microsec)
Fig. 7 - Maximum Peak Surge Forward Current Vs. Pulse Duration
L
DUT
CURRENT
MONITOR
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
www.irf.com