IRF640N/S/LPbF
20
20
16
16
12
12
8
V
DS
V
GS
R
G
10V
Pulse Width
≤ 1
µs
Duty Factor
≤ 0.1 %
R
D
D.U.T.
+
V
DD
I
D
, Drain Current (A)
I
D
, Drain Current (A)
-
8
Fig 10a.
Switching Time Test Circuit
V
DS
90%
4
4
0
25
25
0
50
75
100
125
150
50
T
75
100
125
150
, Case Temperature ( ° C)
T
C C
Case Temperature ( ° C)
,
175
175
10%
V
GS
t
d(on)
t
r
t
d(off)
t
f
Fig 9.
Maximum Drain Current Vs.
Case Temperature
10
Fig 10b.
Switching Time Waveforms
Thermal Response(Z
thJC
)
1
D = 0.50
0.20
0.1
0.10
0.05
0.02
0.01
SINGLE PULSE
(THERMAL RESPONSE)
P
DM
t
1
t
2
Notes:
1. Duty factor D = t
1
/ t
2
2. Peak T
J
= P
DM
x Z
thJC
+ T
C
0.001
0.01
0.1
1
0.01
0.00001
0.0001
t
1
, Rectangular Pulse Duration (sec)
Fig 11.
Maximum Effective Transient Thermal Impedance, Junction-to-Case
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