IRFR/U3910
350
E
A S
, S ingle Pulse Avalanc he E nergy (m J)
TOP
300
1 5V
B O TT O M
250
I
D
3.7 A
6.4A
9 .0 A
VD S
L
D R IV E R
200
RG
10V
tp
D .U .T
IA
S
+
V
- DD
150
A
0.0 1
Ω
100
Fig 12a.
Unclamped Inductive Test Circuit
50
0
V
D D
= 25 V
25
50
75
100
125
150
A
175
V
(B R )D SS
tp
S tarting T
J
, J unc tion T em perature (°C )
Fig 12c.
Maximum Avalanche Energy
Vs. Drain Current
I
AS
Fig 12b.
Unclamped Inductive Waveforms
Current Regulator
Same Type as D.U.T.
50KΩ
Q
G
12V
.2µF
.3µF
5.0 V
Q
GS
V
G
Q
GD
V
GS
3mA
D.U.T.
+
V
-
DS
Charge
I
G
I
D
Current Sampling Resistors
Fig 13a.
Basic Gate Charge Waveform
Fig 13b.
Gate Charge Test Circuit
6
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KERSEMI [ Kersemi Electronic Co., Ltd. ]
