IRF9540N
L
V
D S
1200
1000
800
600
400
200
0
I
D
TOP
-4.7A
-8.1A
-11A
D .U .T
R
G
V
D D
A
BO TTO M
I
A S
D R IV ER
-20V
0.0 1
Ω
t
p
15V
Fig 12a. Unclamped Inductive Test Circuit
I
AS
A
175
25
50
75
100
125
150
Starting T , Junction Tem perature (°C)
J
Fig 12c. Maximum Avalanche Energy
Vs. Drain Current
t
p
V
(BR)DSS
Fig 12b. Unclamped Inductive Waveforms
Current Regulator
Same Type as D.U.T.
50KΩ
Q
G
.2µF
12V
.3µF
-10V
-
V
+
DS
Q
Q
GD
GS
D.U.T.
V
GS
V
G
-3mA
I
I
D
G
Charge
Current Sampling Resistors
Fig 13b. Gate Charge Test Circuit
Fig 13a. Basic Gate Charge Waveform