Symbol
V
DS
V
GS
I
DM
T
J
, T
STG
Symbol
Typ
Max
70
90
100
125
R
JL
63
80
W
Maximum Junction-to-Lead
C
Steady-State
C/W
Thermal Characteristics
Parameter
Units
Maximum Junction-to-Ambient
A
t 10s
R
JA
C/W
Maximum Junction-to-Ambient
A
Steady-State
C/W
12
Gate-Source Voltage
Drain-Source Voltage
30
Continuous Drain
Current
A
Maximum
Units
Parameter
T
A
=25C
T
A
=70C
Absolute Maximum Ratings T
A
=25C unless otherwise noted
V
V
3.4
15
Pulsed Drain Current
B
Power Dissipation
A
T
A
=25C
Junction and Storage Temperature Range
A
P
D
C
1.4
1
-55 to 150
T
A
=70C
I
D
4
AO3402, AO3402L ( Green Product )
N-Channel Enhancement Mode Field Effect Transistor
Rev 2: Nov 2004
Features
V
DS
(V) = 30V
I
D
= 4 A
R
DS(ON)
< 55m
(V
GS
= 10V)
R
DS(ON)
< 70m
(V
GS
= 4.5V)
R
DS(ON)
< 110m
(V
GS
= 2.5V)
General Description
The AO3402 uses advanced trench technology to
provide excellent R
DS(ON)
, low gate charge and
operation with gate voltages as low as 2.5V. This
device is suitable for use as a load switch or in PWM
applications. AO3402L( Green Product ) is offered in
a lead-free package.
G
D
S
S
G
D
TO-236
(SOT-23)
Top View
Alpha & Omega Semiconductor, Ltd.
AO3402, AO3402L
Symbol
Min
Typ
Max
Units
BV
DSS
30
V
1
T
J
=55C
5
I
GSS
100
nA
V
GS(th)
0.6
1
1.4
V
I
D(ON)
10
A
45
55
T
J
=125C
66
80
55
70
m
83
110
m
g
FS
8
S
V
SD
0.8
1
V
I
S
2.5
A
C
iss
390
pF
C
oss
54.5
pF
C
rss
41
pF
R
g
3
Q
g
4.34
nC
Q
gs
0.6
nC
Q
gd
1.38
nC
t
D(on)
3.3
ns
t
r
1
ns
t
D(off)
21.7
ns
t
f
2.1
ns
t
rr
12
ns
Q
rr
6.3
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 Time
Body Diode Reverse Recovery Charge I
F
=4A, dI/dt=100A/
s
Drain-Source Breakdown Voltage
On state drain current
I
D
=250
A, V
GS
=0V
V
GS
=2.5V, I
D
=2A
V
GS
=4.5V, V
DS
=5V
V
GS
=10V, I
D
=4A
Reverse Transfer Capacitance
Electrical Characteristics (T
J
=25C unless otherwise noted)
STATIC PARAMETERS
Parameter
Conditions
I
DSS
A
Gate Threshold Voltage
V
DS
=V
GS
I
D
=250
A
V
DS
=24V, V
GS
=0V
V
DS
=0V, V
GS
=12V
Zero Gate Voltage Drain Current
Gate-Body leakage current
R
DS(ON)
Static Drain-Source On-Resistance
Forward Transconductance
Diode Forward Voltage
m
V
GS
=4.5V, I
D
=3A
I
S
=1A,V
GS
=0V
V
DS
=5V, I
D
=4A
I
F
=4A, dI/dt=100A/
s
V
GS
=0V, V
DS
=15V, f=1MHz
SWITCHING PARAMETERS
Total Gate Charge
V
GS
=4.5V, V
DS
=15V, I
D
=4A
Gate Source Charge
Gate Drain Charge
Turn-On Rise Time
Turn-Off DelayTime
V
GS
=10V, V
DS
=15V, R
L
=3.75
,
R
GEN
=6
Gate resistance
V
GS
=0V, V
DS
=0V, f=1MHz
Turn-Off Fall Time
Maximum Body-Diode Continuous Current
Input Capacitance
Output Capacitance
Turn-On DelayTime
DYNAMIC PARAMETERS
A: The value of R
JA
is measured with the device mounted on 1in
2
FR-4 board with 2oz. Copper, in a still air environment with T
A
=25C. The
value in any a given application depends on the user's specific board design. The current rating is based on the t
10s thermal resistance
rating.
B: Repetitive rating, pulse width limited by junction temperature.
C. The R
JA
is the sum of the thermal impedence from junction to lead R
JL
and lead to ambient.
D. The static characteristics in Figures 1 to 6,12,14 are obtained using 80
s pulses, duty cycle 0.5% max.
E. These tests are performed with the device mounted on 1 in
2
FR-4 board with 2oz. Copper, in a still air environment with T
A
=25C. The
SOA curve provides a single pulse rating.
Alpha & Omega Semiconductor, Ltd.
AO3402, AO3402L
TYPICAL ELECTRICAL AND THERMAL CHARACTERISTICS
0
3
6
9
12
15
0
1
2
3
4
5
V
DS
(Volts)
Fig 1: On-Region Characteristics
I
D
(A
)
V
GS
=2V
2.5V
3V
4.5V
10V
0
2
4
6
8
10
0
0.5
1
1.5
2
2.5
3
3.5
V
GS
(Volts)
Figure 2: Transfer Characteristics
I
D
(A
)
0
25
50
75
100
125
150
0
2
4
6
8
10
I
D
(A)
Figure 3: On-Resistance vs. Drain Current and
Gate Voltage
R
DS
(
O
N)
(m
)
1.0E-06
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
V
SD
(Volts)
Figure 6: Body-Diode Characteristics
I
S
(A
)
25C
125C
0.8
1
1.2
1.4
1.6
1.8
0
25
50
75
100
125
150
175
Temperature (C)
Figure 4: On-Resistance vs. Junction
Temperature
N
o
r
m
a
liz
ed
On
-R
esistan
ce
V
GS
=2.5V
V
GS
=10V
V
GS
=4.5V
0
50
100
150
200
0
2
4
6
8
10
V
GS
(Volts)
Figure 5: On-Resistance vs. Gate-Source Voltage
R
DS
(
O
N)
(m
)
25C
125C
V
DS
=5V
V
GS
=2.5V
V
GS
=4.5V
V
GS
=10V
I
D
=2A
25C
125C
Alpha & Omega Semiconductor, Ltd.
AO3402, AO3402L
TYPICAL ELECTRICAL AND THERMAL CHARACTERISTICS
0
1
2
3
4
5
0
1
2
3
4
5
Q
g
(nC)
Figure 7: Gate-Charge Characteristics
V
GS
(V
ol
ts)
0
100
200
300
400
500
600
0
5
10
15
20
25
30
V
DS
(Volts)
Figure 8: Capacitance Characteristics
C
a
p
acitan
ce (p
F
)
C
iss
0
5
10
15
20
0.001
0.01
0.1
1
10
100
1000
Pulse Width (s)
Figure 10: Single Pulse Power Rating Junction-to-
Ambient (Note E)
Po
w
e
r (
W
)
0.01
0.1
1
10
0.00001
0.0001
0.001
0.01
0.1
1
10
100
1000
Pulse Width (s)
Figure 11: Normalized Maximum Transient Thermal Impedance
Z
JA
N
o
r
m
a
liz
ed
T
r
an
sien
t
T
h
e
r
m
a
l R
esistan
ce
C
oss
C
rss
0.1
1.0
10.0
100.0
0.1
1
10
100
V
DS
(Volts)
I
D
(A
m
p
s)
Figure 9: Maximum Forward Biased Safe
Operating Area (Note E)
100
s
10ms
1ms
0.1s
1s
10s
DC
R
DS(ON)
limited
T
J(Max)
=150C
T
A
=25C
V
DS
=15V
I
D
=4A
Single Pulse
D=T
on
/T
T
J,PK
=T
A
+P
DM
.Z
JA
.R
JA
R
JA
=90C/W
T
on
T
P
D
In descending order
D=0.5, 0.3, 0.1, 0.05, 0.02, 0.01, single pulse
T
J(Max)
=150C
T
A
=25C
10
s
Alpha & Omega Semiconductor, Ltd.
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