IRF7416PbF
V
DS
Q
G
R
D
-10V
V
G
V
GS
R
G
-10V
D.U.T.
+
Charge
Pulse Width
≤ 1
µs
Duty Factor
≤ 0.1 %
Fig 9a.
Basic Gate Charge Waveform
Current Regulator
Same Type as D.U.T.
Fig 10a.
Switching Time Test Circuit
50KΩ
12V
.2µF
.3µF
t
d(on)
t
r
t
d(off)
t
f
V
GS
10%
+
D.U.T.
-
V
DS
V
GS
90%
-3mA
V
DS
I
G
I
D
Current Sampling Resistors
Fig 9b.
Gate Charge Test Circuit
100
Fig 10b.
Switching Time Waveforms
Thermal Response (Z
thJA
)
D = 0.50
0.20
0.10
0.05
0.02
1
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
thJA
+ T
A
0.1
1
10
100
10
0.1
0.0001
0.001
0.01
t
1
, Rectangular Pulse Duration (sec)
Fig 11.
Maximum Effective Transient Thermal Impedance, Junction-to-Ambient
www.irf.com
-
Q
GS
Q
GD
V
DD
5
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