IRF7402PbF
Current Regulator
Same Type as D.U.T.
50KΩ
Q
G
12V
.2µF
.3µF
4.5V
Q
GS
V
G
Q
GD
V
GS
3mA
D.U.T.
+
V
-
DS
Charge
I
G
I
D
Current Sampling Resistors
Fig 12a.
Basic Gate Charge Waveform
Fig 12b.
Gate Charge Test Circuit
R
DS(on)
, Drain-to-Source On Resistance
( Ω )
0.2
VGS = 2.5V
R
DS(on)
, Drain-to-Source On Resistance
( Ω )
0.3
0.05
0.04
I
D
= 5.7A
,
0.03
0.1
0.0
VGS =5V
0
3
I
6
9
12
15
A
0.02
2
4
6
8
A
,
, Drain Current (A)
V
/5
, Gate-to-Source Voltage (V)
Fig 14.
Typical On-Resistance Vs. Gate
Voltage
Fig 13.
Typical On-Resistance Vs. Drain
Current
6
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