Datasheet

63CPQ100
www.irf.com
PD-20728 12/99
4
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current
Fig. 8 - Unclamped Inductive Test Circuit
FREE-WHEEL
DIODE
40HFL40S02
C URRENT
MONITOR
HIGH-SPEED
SWITCH
IRFP460
L
DUT
Rg = 25 ohm
Vd = 25 Volt
+
(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
Average Forward Current - IF
(AV)
(A)
Average Forward Current - I
F
(AV)
(A)
Square Wave Pulse Duration - t
p
(microsec)
Fig. 7 - Max. Non-Repetitive Surge Current
Allowable Case Temperature - (°C)
Average Power Loss - (Watts)
Non-Repetitive Surge Current - I
FSM (A)
120
130
140
150
160
170
180
0 1020304050
DC
see note (2)
Square wave (D = 0.50)
80% Rated V applied
R
0
5
10
15
20
25
30
0 1020304050
DC
RMS Limit
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
100
1000
10000
10 100 1000 10000
At Any Rated Load Condition
And With Rated V Applied
Following Surge
RRM
Fig. 6 - Forward Power Loss Characteristics