ao4458 Alpha & Omega Semiconductor, ao4458 Datasheet - Page 3

• Manufacturer Part Number: ao4458
• Description: General Description
• Manufacturer: Alpha & Omega Semiconductor

AO4458
Alpha & Omega Semiconductor, Ltd.
TYPICAL ELECTRICAL AND THERMAL CHARACTERISTICS
THIS PRODUCT HAS BEEN DESIGNED AND QUALIFIED FOR THE CONSUMER MARKET. APPLICATIONS OR USES AS CRITICAL
COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS ARE NOT AUTHORIZED. AOS DOES NOT ASSUME ANY LIABILITY ARISING
OUT OF SUCH APPLICATIONS OR USES OF ITS PRODUCTS. AOS RESERVES THE RIGHT TO IMPROVE PRODUCT DESIGN,
FUNCTIONS AND RELIABILITY WITHOUT NOTICE.
5.5
4.5
3.5
80
70
60
50
40
30
20
10
0
16
14
12
10
6
5
4
3
8
6
4
2
0
0
0
2
Figure 5: On-Resistance vs. Gate-Source Voltage
Figure 3: On-Resistance vs. Drain Current and
4V
Figure 1: On-Region Characteristics
4.5V
1
4
10V
4
Gate Voltage
2
8
V
V
DS
GS
I
D
(Volts)
125°C
(Volts)
(A)
6
V
V
GS
-40°C
12
GS
3
= 4.5V
= 10V
V
GS
I
25°C
D
8
= 20A
= 2.5V
3.5V
16
4
3V
20
10
5
1E+01
1E+00
1E-01
1E-02
1E-03
1E-04
1E-05
1E-06
1.6
1.4
1.2
1.0
0.8
0.6
30
25
20
15
10
5
0
-50
0
0.0
V
-25
DS
= 5V
Figure 4: On-Resistance vs. Junction
Figure 6: Body-Diode Characteristics
Figure 2: Transfer Characteristics
0.2
125°C
0
1
25°C
25
0.4
Temperature (°C)
Temperature
V
V
GS
50
V
I
D
SD
GS
= 20A
(Volts)
25°C
2
0.6
(Volts)
= 10V
75
125°C
-40°C
100 125 150 175
0.8
3
V
I
D
GS
= 18A
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-40°C
1.0
= 4.5V
1.2
4