47CTQ020 Datasheet, PDF (4/7 Pages) International Rectifier – SCHOTTKY RECTIFIER

47CTQ020, 47CTQ020S, 47CTQ020-1
PD-20540 rev. E 10/99
160
150
DC
140
130
12 0 _{Square wave (D = 0.50)}
10V applied
110
100
see n ote (2)
90
0
5
10 15 20 25 30
A ve rag e Fo rward C urrent - I _{F(AV )} (A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
1000
12
D = 0.20
D = 0.25
10 _{D = 0.33}
D = 0.50
8 ^{D = 0.75}
RM S Lim it
6
DC
4
2
0
0
5 10 15 20 25 30
A ve rag e Fo rward C urre nt - I _{F(AV )} (A )
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
DUT
C URRENT
M ONITOR
A t A ny Rated Lo ad C onditio n
And W ith Rated V_RRM Applied
Fo llowing Surge
100
10
100
1000
10000
Square Wave P ulse D uration - t _p (m icrose c)
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
L
IR F P4 6 0
Rg = 25 ohm
HIG H-SPEED
SWITCH
FREE-WHEEL
DIO DE
40HFL40S02
+ ^{V d = 25 V olt}
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 = 10 V
4
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