IRF9540N
VDS
L
1200
E
A S
, S ingle Pulse Avalanc he E nergy (m J)
TOP
1000
RG
D .U .T
IA S
D R IV E R
0 .0 1
Ω
VD D
A
B O T TO M
I
D
-4 .7A
-8 .1A
-11 A
-2 0 V
tp
800
600
15V
400
Fig 12a.
Unclamped Inductive Test Circuit
I
AS
200
0
25
50
75
100
125
150
A
175
S tarting T
J
, J unc tion T em perature (°C )
tp
V
(BR)DSS
Fig 12c.
Maximum Avalanche Energy
Vs. Drain Current
Fig 12b.
Unclamped Inductive Waveforms
Current Regulator
Same Type as D.U.T.
50KΩ
Q
G
12V
.2µF
.3µF
-10V
Q
GS
V
G
Q
GD
V
GS
-3mA
Charge
I
G
I
D
Current Sampling Resistors
Fig 13a.
Basic Gate Charge Waveform
Fig 13b.
Gate Charge Test Circuit
6/8
www.freescale.net.cn
+
D.U.T.
-
V
DS