80CNQ Datasheet, PDF (4/6 Pages) International Rectifier – SCHOTTKY RECTIFIER

80CNQ... Series
PD-2.216 rev. C 01/99
160
140
DC
120
Square wave (D = 0.50)
80% Rated V_R applied
100
see note (2)
80
0 10 20 30 40 50 60
Average Forward Current - I _F(AV) (A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
10000
30
D = 0.20
D = 0.25
25 _{D = 0.33}
D = 0.50
20 ^{D = 0.75}
RMS Limit
15
DC
10
5
0
0 10 20 30 40 50 60
Average Forward Current - I _F(AV) (A)
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
DUT
C URRE NT
MONITOR
1000
At Any Rated Load Condition
And With
Following
Rated
Surge
V
RRM
Applied
100
10
100
1000
10000
Square Wave Pulse Duration - t _p (microsec)
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
L
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 x V @ (I / D) (see Fig. 6);
F(AV) FM
F(AV)
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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