IRFR420A, IRFU420A, SiHFR420A,
E
AS
, Single Pulse Avalanche Energy (mJ)
300
TOP
250
BOTTOM
200
V DSav , Avalanche Voltage ( V )
ID
1.1A
1.6A
2.5A
700
650
150
600
100
50
550
0.0
0.5
1.0
1.5
2.0
2.5
0
25
50
75
100
125
150
IAV , Avalanche Current ( A)
Fig. 12c - Maximum Avalanche Energy vs. Drain Current
Starting T
J
, Junction Temperature (
°
C)
Fig. 12d - Maximum Avalanche Energy vs. Drain Current
Current regulator
Same type as D.U.T.
Q
G
10 V
Q
GS
Q
GD
D.U.T.
12
V
0.2
µF
0.3
µF
50 kΩ
+
-
V
DS
V
G
V
GS
3 mA
Charge
I
G
I
D
Current sampling resistors
Fig. 13a - Basic Gate Charge Waveform
Fig. 13b - Gate Charge Test Circuit
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