Symbol
V
DS
V
GS
I
DM
T
J
, T
STG
Symbol
Typ
Max
48
62.5
74
110
R
JL
35
60
Maximum Junction-to-Lead
C
Steady-State
C/W
Thermal Characteristics
Parameter
Units
Maximum Junction-to-Ambient
A
t 10s
R
JA
C/W
C/W
Absolute Maximum Ratings T
A
=25C unless otherwise noted
V
V
20
Pulsed Drain Current
B
Power Dissipation
T
A
=25C
Gate-Source Voltage
Drain-Source Voltage
Maximum Junction-to-Ambient
A
Steady-State
4.5
3.6
20
Continuous Drain
Current
A
Maximum
Units
Parameter
T
A
=25C
T
A
=70C
60
W
Junction and Storage Temperature Range
A
P
D
C
2
1.28
-55 to 150
T
A
=70C
I
D
AO4828
Dual N-Channel Enhancement Mode Field Effect Transistor
Features
V
DS
(V) = 60V
I
D
= 4.5A (V
GS
= 10V)
R
DS(ON)
< 56m
(V
GS
= 10V)
R
DS(ON)
< 77m
(V
GS
= 4.5V)
General Description
The AO4828 uses advanced trench technology to
provide excellent R
DS(ON)
and low gate charge. This
device is suitable for use as a load switch or in PWM
applications.
Standard Product AO4828 is Pb-free
(meets ROHS & Sony 259 specifications). AO4828L
is a Green Product ordering option. AO4828 and
AO4828L are electrically identical.
G1
D1
S1
G2
D2
S2
G1
S1
G2
S2
D1
D1
D2
D2
1
2
3
4
8
7
6
5
SOIC-8
Alpha & Omega Semiconductor, Ltd.
AO4828
Symbol
Min
Typ
Max
Units
BV
DSS
60
V
1
T
J
=55C
5
I
GSS
100
nA
V
GS(th)
1
2.1
3
V
I
D(ON)
20
A
46
56
T
J
=125C
80
100
64
77
m
g
FS
11
S
V
SD
0.74
1
V
I
S
3
A
C
iss
450
540
pF
C
oss
60
pF
C
rss
25
pF
R
g
1.65
2
Q
g
(10V)
8.5
10.5
nC
Q
g
(4.5V)
4.3
5.5
nC
Q
gs
1.6
nC
Q
gd
2.2
nC
t
D(on)
4.7
ns
t
r
2.3
ns
t
D(off)
15.7
ns
t
f
1.9
ns
t
rr
27.5
35
ns
Q
rr
32
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
=4.5A, dI/dt=100A/
s
Drain-Source Breakdown Voltage
On state drain current
I
D
=250
A, V
GS
=0V
V
GS
=10V, V
DS
=5V
V
GS
=10V, I
D
=4.5A
Reverse Transfer Capacitance
I
F
=4.5A, dI/dt=100A/
s
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
=48V, V
GS
=0V
V
DS
=0V, V
GS
= 20V
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
=4.5A
Total Gate Charge
Gate Source Charge
Gate resistance
V
GS
=0V, V
DS
=0V, f=1MHz
Turn-On Rise Time
Turn-Off DelayTime
V
GS
=10V, V
DS
=30V, R
L
=6.7
,
R
GEN
=3
Turn-Off Fall Time
Maximum Body-Diode Continuous Current
Input Capacitance
Output Capacitance
Turn-On DelayTime
DYNAMIC PARAMETERS
V
GS
=10V, V
DS
=30V, I
D
=4.5A
Total Gate Charge
Gate Drain Charge
V
GS
=0V, V
DS
=30V, f=1MHz
SWITCHING 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 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 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.
Rev 3: June 2005
Alpha & Omega Semiconductor, Ltd.
AO4828
TYPICAL ELECTRICAL AND THERMAL CHARACTERISTICS
0
5
10
15
20
0
1
2
3
4
5
V
DS
(Volts)
Fig 1: On-Region Characteristics
I
D
(A
)
V
GS
=3.5V
4.0V
10.0
5.0V
4.5V
0
5
10
15
2
2.5
3
3.5
4
4.5
5
V
GS
(Volts)
Figure 2: Transfer Characteristics
I
D
(A
)
20
30
40
50
60
70
80
90
100
0
5
10
15
20
I
D
(A)
Figure 3: On-Resistance vs. Drain Current and
Gate Voltage
R
DS
(
O
N)
(m
)
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
V
SD
(Volts)
Figure 6: Body-Diode Characteristics
I
S
(A
)
25C
125C
0.8
1
1.2
1.4
1.6
1.8
2
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
=10V
V
GS
=4.5V
I
D
=3.0A
I
D
=4.5A
40
60
80
100
120
140
160
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
=4.5V
V
GS
=10V
I
D
=4.5A
25C
125C
Alpha & Omega Semiconductor, Ltd.
AO4828
TYPICAL ELECTRICAL AND THERMAL CHARACTERISTICS
0
2
4
6
8
10
0
1
2
3
4
5
6
7
8
9
10
Q
g
(nC)
Figure 7: Gate-Charge Characteristics
V
GS
(V
ol
ts)
0
200
400
600
800
0
10
20
30
40
50
60
V
DS
(Volts)
Figure 8: Capacitance Characteristics
C
a
p
acitan
ce (p
F
)
C
iss
0
10
20
30
40
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
T
J(Max)
=150C
T
A
=25C
R
DS(ON)
limited
V
DS
=30V
I
D
= 4.5A
Single Pulse
D=T
on
/T
T
J,PK
=T
A
+P
DM
.Z
JA
.R
JA
R
JA
=62.5C/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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