AO3438
20V N-Channel MOSFET
TYPICAL ELECTRICAL AND THERMAL CHARACTERISTICS
16
4.5V
12
2.5V
2V
12
16
V
DS
=5V
I
D
(A)
8
V
GS
=1.5V
4
I
D
(A)
8
4
125°C
25°C
0
0
1
2
3
4
5
V
DS
(Volts)
Figure 1: On-Region Characteristics
120
Normalized On-Resistance
0
0
0.5
1
1.5
2
2.5
V
GS
(Volts)
Figure 2: Transfer Characteristics
1.6
V
GS
=1.8V
I
D
=2A
1.4
V
GS
=2.5V
I
D
=2.8A
V
GS
=4.5V
I
D
=3A
100
R
DS(ON)
(m
Ω
)
V
GS
=1.8V
80
V
GS
=2.5V
60
V
GS
=4.5V
40
0
3
6
9
12
I
D
(A)
Figure 3: On-Resistance vs. Drain Current and
Gate Voltage
120
I
D
=3A
1.2
1
0.8
-50
-25
0
25
50
75
100 125 150 175
Temperature (°C)
Figure 4: On-Resistance vs. Junction
Temperature
1E+01
1E+00
100
R
DS(ON)
(m
Ω
)
12
1E-01
125°C
I
S
(A)
80
125°C
1E-02
25°C
1E-03
60
25°C
40
0
2
4
6
8
V
GS
(Volts)
Figure 5: On-Resistance vs. Gate-Source Voltage
1E-04
1E-05
0.0
0.2
0.4
0.6
0.8
1.0
1.2
V
SD
(Volts)
Figure 6: Body-Diode Characteristics
3/4
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