AO4438
TYPICAL ELECTRICAL AND THERMAL CHARACTERISTICS: N-CHANNEL
30
10V
4V
4.5V
6V
20
I
D
(A)
I
D
(A)
25
20
15
10
25°C
5
0
0
1
2
3
4
5
V
DS
(Volts)
Fig 1: On-Region Characteristics
0
1.5
2
2.5
3
3.5
4
V
GS
(Volts)
Figure 2: Transfer Characteristics
2.2
V
GS
=4.5V
20
R
DS(ON)
(mΩ)
Ω
Normalized On-Resistance
2
1.8
1.6
1.4
1.2
1
0.8
0
5
10
15
20
0
25
50
75
100
125
150
175
I
D
(A)
Figure 3: On-Resistance vs. Drain Current and
Gate Voltage
Temperature (°C)
Figure 4: On-Resistance vs. Junction Temperature
V
GS
=4.5V
I
D
=7.6A
V
GS
=10V
I
D
=8.2A
V
DS
=5V
125°C
30
10
V
GS
=3.5V
22
18
V
GS
=10V
16
14
50
I
D
=8.2A
40
R
DS(ON)
(mΩ)
Ω
125°C
30
I
S
(A)
1.0E+01
1.0E+00
125°C
1.0E-01
1.0E-02
25°C
1.0E-03
1.0E-04
20
25°C
10
2
4
6
8
10
1.0E-05
0.0
0.2
0.4
0.6
0.8
1.0
V
SD
(Volts)
Figure 6: Body-Diode Characteristics
V
GS
(Volts)
Figure 5: On-Resistance vs. Gate-Source Voltage
Alpha & Omega Semiconductor, Ltd.
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