AO7408

AO7408
20V N-Channel MOSFET
General Description Product Summary
V
DS
I
D
(at V
GS
=10V) 2A
R
DS(ON)
(at V
GS
=4.5V) < 62m
R
DS(ON)
(at V
GS
=2.5V) < 75m
R
DS(ON)
(at V
GS
=1.8V) < 85m
Symbol
The AO7408 uses advanced trench technology to provide
excellent RD
S(ON), low gate charge and operation with
gate voltages as low as 1.8V. This device is suitable for
use as a load switch or in PWM applications.
Maximum UnitsParameter
Absolute Maximum Ratings T
A
=25°C unless otherwise noted
20V
G
D
S
D D
G
D
S
D
Top View
1
2
3
6
5
4
SC-70-6
(SOT-323)
Top View Bottom View
Pin
1
V
DS
V
GS
I
DM
T
J
, T
STG
Symbol
t 10s
Steady-State
Steady-State
R
θJL
0.22
T
A
=70°C
Junction and Storage Temperature Range -55 to 150 °C
Thermal Characteristics
Power Dissipation
B
P
D
T
A
=25°C
W
Parameter Typ Max
°C/W
R
θJA
300
340
360
V±8Gate-Source Voltage
Drain-Source Voltage 20 V
Maximum
Units
Parameter
A
I
D
2
1.5
16
T
A
=25°C
T
A
=70°C
Pulsed Drain Current
C
Continuous Drain
Current
0.35
Maximum Junction-to-Lead
°C/W
°C/W
Maximum Junction-to-Ambient
A D
280
425
320
Maximum Junction-to-Ambient
A
Units
G
D
S
D D
G
D
S
D
Top View
1
2
3
6
5
4
SC-70-6
(SOT-323)
Top View Bottom View
Pin
1
Rev 3: July 2010
www.aosmd.com Page 1 of 5
AO7408
Symbol Min Typ Max Units
BV
DSS
20 V
V
DS
=20V, V
GS
=0V 1
T
J
=55°C 5
I
GSS
±100 nA
V
GS(th)
Gate Threshold Voltage
0.4 0.7 1 V
I
D(ON)
16 A
50 62
T
J
=125°C 70 90
56 75 m
66 85 m
g
FS
15 S
V
SD
0.7 1 V
I
S
0.35 A
C
iss
260 320 pF
C
oss
48 pF
C
rss
27 pF
R
g
3 4.5
Q
g
2.9 4 nC
Q
gs
0.4 nC
Q
gd
0.6 nC
t
D(on)
2.5 ns
t
3.2
ns
Maximum Body-Diode Continuous Current
Input Capacitance
Output Capacitance
Turn-On DelayTime
DYNAMIC PARAMETERS
Turn-On Rise Time
V
=10V, V
=10V,
R
=5
,
Gate resistance
V
GS
=0V, V
DS
=0V, f=1MHz
V
GS
=4.5V, V
DS
=10V, I
D
=2A
Gate Source Charge
Gate Drain Charge
Total Gate Charge
R
DS(ON)
Static Drain-Source On-Resistance
I
DSS
µA
V
DS
=V
GS
I
D
=250µA
V
DS
=0V, V
GS
8V
Zero Gate Voltage Drain Current
Gate-Body leakage current
m
On state drain current
I
D
=250µA, V
GS
=0V
V
GS
=4.5V, V
DS
=5V
V
GS
=4.5V, I
D
=2A
Forward Transconductance
Diode Forward Voltage
I
S
=1A,V
GS
=0V
V
DS
=5V, I
D
=2A
V
GS
=1.8V, I
D
=1A
V
GS
=2.5V, I
D
=1.8A
Reverse Transfer Capacitance
V
GS
=0V, V
DS
=10V, f=1MHz
SWITCHING PARAMETERS
Electrical Characteristics (T
J
=25°C unless otherwise noted)
STATIC PARAMETERS
Parameter Conditions
Drain-Source Breakdown Voltage
t
r
3.2
ns
t
D(off)
21 ns
t
f
3 ns
t
rr
14 19 ns
Q
rr
3.8
nC
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.
Body Diode Reverse Recovery Charge
I
F
=2A, dI/dt=100A/µs
Turn-On Rise Time
Turn-Off DelayTime
V
GS
=10V, V
DS
=10V, R
L
=5
,
R
GEN
=3
Turn-Off Fall Time
I
F
=2A, dI/dt=100A/µs
Body Diode Reverse Recovery Time
A. The value of R
θJA
is measured with the device mounted on 1in
2
FR-4 board with 2oz. Copper, in a still air environment with T
A
=25°C. The
value in any given application depends on the user's specific board design.
B. The power dissipation P
D
is based on T
J(MAX)
=150°C, using 10s junction-to-ambient thermal resistance.
C. Repetitive rating, pulse width limited by junction temperature T
J(MAX)
=150°C. Ratings are based on low frequency and duty cycles to keep
initialT
J
=25°C.
D. The R
θJA
is the sum of the thermal impedence from junction to lead R
θJL
and lead to ambient.
E. The static characteristics in Figures 1 to 6 are obtained using <300µs pulses, duty cycle 0.5% max.
F. These curves are based on the junction-to-ambient thermal impedence which is measured with the device mounted on 1in
2
FR-4 board with
2oz. Copper, assuming a maximum junction temperature of T
J(MAX)
=150°C. The SOA curve provides a single pulse rating.
Rev 3: July 2010 www.aosmd.com Page 2 of 5
AO7408
TYPICAL ELECTRICAL AND THERMAL CHARACTERISTICS
17
5
2
10
0
18
0
4
8
12
16
20
0 0.5 1 1.5 2 2.5 3
I
D
(A)
V
GS
(Volts)
Figure 2: Transfer Characteristics (Note E)
40
60
80
100
120
0 2 4 6 8 10
R
DS(ON)
(m
)
I
D
(A)
Figure 3: On-Resistance vs. Drain Current and Gate
Voltage (Note E)
0.8
1
1.2
1.4
1.6
0 25 50 75 100 125 150 175
Normalized On-Resistance
Temperature (°C)
Figure 4: On-Resistance vs. Junction Temperature
(Note E)
V
GS
=4.5V
I
D
=2A
V
GS
=2.5V
I
D
=1.8A
V
GS
=1.8V
I
D
=1A
25°C
125
°
C
V
DS
=5V
V
GS
=1.8V
V
GS
=4.5V
0
5
10
15
20
25
0 1 2 3 4 5
I
D
(A)
V
DS
(Volts)
Fig 1: On-Region Characteristics (Note E)
V
GS
=1.5V
2V
4.5V
2.5V
V
GS
=2.5V
40
0
4
8
12
16
20
0 0.5 1 1.5 2 2.5 3
I
D
(A)
V
GS
(Volts)
Figure 2: Transfer Characteristics (Note E)
40
60
80
100
120
0 2 4 6 8 10
R
DS(ON)
(m
)
I
D
(A)
Figure 3: On-Resistance vs. Drain Current and Gate
Voltage (Note E)
1.0E-05
1.0E-04
1.0E-03
1.0E-02
1.0E-01
1.0E+00
1.0E+01
0.0 0.2 0.4 0.6 0.8 1.0 1.2
I
S
(A)
V
SD
(Volts)
Figure 6: Body-Diode Characteristics (Note E)
25
°
125
°
0.8
1
1.2
1.4
1.6
0 25 50 75 100 125 150 175
Normalized On-Resistance
Temperature (°C)
Figure 4: On-Resistance vs. Junction Temperature
(Note E)
V
GS
=4.5V
I
D
=2A
V
GS
=2.5V
I
D
=1.8A
V
GS
=1.8V
I
D
=1A
40
60
80
100
120
0 2 4 6 8
R
DS(ON)
(m
)
V
GS
(Volts)
Figure 5: On-Resistance vs. Gate-Source Voltage
(Note E)
25°C
125
°
C
V
DS
=5V
V
GS
=1.8V
V
GS
=4.5V
I
D
=2A
25
°
125
°
0
5
10
15
20
25
0 1 2 3 4 5
I
D
(A)
V
DS
(Volts)
Fig 1: On-Region Characteristics (Note E)
V
GS
=1.5V
2V
4.5V
2.5V
V
GS
=2.5V
Rev 3: July 2010 www.aosmd.com Page 3 of 5

AO7408

Mfr. #:
Manufacturer:
Description:
Lifecycle:
New from this manufacturer.
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