Datasheet
IRFB9N65A
6 www.irf.com
Q
G
Q
GS
Q
GD
V
G
Charge
D.U.T.
V
DS
I
D
I
G
3mA
V
GS
.3µF
50KΩ
.2µF
12V
Current Regulator
Same Type as D.U.T.
Current Sampling Resistors
+
-
10 V
Fig 13b. Gate Charge Test Circuit
Fig 13a. Basic Gate Charge Waveform
Fig 12c. Maximum Avalanche Energy
Vs. Drain Current
Fig 12b. Unclamped Inductive Waveforms
Fig 12a. Unclamped Inductive Test Circuit
t
p
V
(BR)DSS
I
AS
R
G
I
AS
0.01
Ω
t
p
D.U.T
L
V
DS
+
-
V
DD
DRIVER
A
15V
20V
Fig 12d. Typical Drain-to-Source Voltage
Vs. Avalanche Current
700
720
740
760
780
800
0123456
A
DSav
av
I , Avalanche Current
(
A
)
V , Avalanche Voltage (V)
25 50 75 100 125 150
0
200
400
600
800
Starting T , Junction Temperature ( C)
E , Single Pulse Avalanche Energy (mJ)
J
AS
°
I
D
TOP
BOTTOM
2.3A
3.3A
5.2A








