AO4842 Alpha & Omega Semiconductor Inc, AO4842 Datasheet - Page 3

• Manufacturer Part Number: AO4842
• Description: MOSFET DUAL N-CH 30V 7.5A 8-SOIC
• Manufacturer: Alpha & Omega Semiconductor Inc

Specifications of AO4842

• Fet Type: 2 N-Channel (Dual)
• Fet Feature: Logic Level Gate
• Rds On (max) @ Id, Vgs: 22 mOhm @ 7.5A, 10V
• Drain To Source Voltage (vdss): 30V
• Current - Continuous Drain (id) @ 25° C: 7.5A
• Vgs(th) (max) @ Id: 3V @ 250µA
• Gate Charge (qg) @ Vgs: 17nC @ 10V
• Input Capacitance (ciss) @ Vds: 820pF @ 15V
• Power - Max: 2W
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 785-1064-2

AO4842
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
OUT OF SUCH APPLICATIONS OR USES OF ITS PRODUCTS. AOS RESERVES THE RIGHT TO IMPROVE PRODUCT DESIGN,
FUNCTIONS AND RELIABILITY WITHOUT NOTICE.
40
35
30
25
20
15
10
30
25
20
15
10
60
50
40
30
20
10
5
0
0
0
2
10V
Figure 5: On-Resistance vs. Gate-Source Voltage
Figure 3: On-Resistance vs. Drain Current and
Fig 1: On-Region Characteristics
1
6V
5
5V
4
Gate Voltage
2
V
V
V
DS
GS
GS
I
D
(Volts)
10
=4.5V
V
(A)
(Volts)
6
GS
=10V
V
V
I
I
I
F
F
D
3
GS
GS
=7.4A, dI/dt=100A/µs
=7.4A, dI/dt=100A/µs
=7.5A
=10V, V
=10V, V
4.5V
V
15
8
GS
4
=3V
125°C
25°C
DS
DS
4V
3.5V
=15V, I
=15V, R
20
10
5
D
L
=7.4A
=2.0Ω, R
1.0E+01
1.0E+00
1.0E-01
1.0E-02
1.0E-03
1.0E-04
1.0E-05
20
16
12
1.6
1.4
1.2
0.8
0.6
8
4
0
1
1.5
-50
Figure 4: On-Resistance vs. Junction Temperature
GEN
0.0
-25
=3Ω
V
I
D
DS
2
=7.5A
Figure 2: Transfer Characteristics
=5V
Figure 6: Body-Diode Characteristics
0
0.2
2.5
25
125°C
125°C
Temperature (°C)
V
GS
50
0.4
(Volts)
V
3
V
SD
GS
75
(Volts)
=10V
25°C
3.5
0.6
100 125 150 175
25°C
V
GS
=4.5V
4
0.8
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4.5
1.0