80CPQ020 Datasheet, PDF (4/5 Pages) International Rectifier – SCHOTTKY RECTIFIER

80CPQ020
PD-20711 rev. B 11/99
1 50
1 45
DC
1 40
1 35
Square w ave (D = 0.50)
1 3 0 ^{1 0 V a p p lie d}
1 25
s ee no te (2)
1 20
0 10 20 30 40 50 60
Av era g e F or w a rd C u rre n t - I _F(AV) (A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
10 0 00
25
D = 0.20
D = 0.25
20 ^{D = 0.33}
D = 0.50
D = 0.75
15
RM S Lim it
DC
10
5
0
0 10 20 30 40 50 60
A ve ra g e F or w a rd C u rre n t - I _F(AV) (A )
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
D UT
C URRENT
M O N ITO R
1 0 00
A t A n y R a te d L o a d C o n d it io n
A n d W it h Ra t e d V _RRM A p p lie d
Fo llo w in g Su r g e
10 0
10
10 0
1 00 0
10 0 00
S q u a re W a v e P ulse D u ra t io n - t _p (m ic ro se c )
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
L
IRFP4 60
Rg = 25 ohm
H IG H -SP E ED
SW ITC H
FR EE-W HEEL
D IO D E
40 HFL4 0 S02
+ ^{V d = 2 5 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= 10V
4