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Alpha & Omega Semiconductors

AO4450 Datasheet Preview

AO4450 Datasheet

40V N-Channel MOSFET

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AO4450
40V N-Channel MOSFET
General Description
The AO4450 uses advanced trench technology
MOSFETs to provide excellent RDS(ON) and low gate
charge. This device is suitable for use as a load
switch or in PWM applications.
Product Summary
VDS
ID (at VGS=10V)
RDS(ON) (at VGS=10V)
RDS(ON) (at VGS=4.5V)
100% UIS Tested
100% Rg Tested
40V
7A
< 30m
< 38m
Top View
D
D
D
D
SOIC-8
Bottom View
D
G
S
S
S
Absolute Maximum Ratings TA=25°C unless otherwise noted
Parameter
Symbol
Drain-Source Voltage
VDS
Gate-Source Voltage
VGS
Continuous Drain
TA=25°C
Current
TA=70°C
Pulsed Drain Current C
Avalanche Current C
Avalanche energy L=0.1mH C
ID
IDM
IAS
EAS
TA=25°C
Power Dissipation B TA=70°C
PD
Junction and Storage Temperature Range
TJ, TSTG
G
Maximum
40
±20
7
5.5
45
14
10
3.1
2
-55 to 150
S
Thermal Characteristics
Parameter
Maximum Junction-to-Ambient A
Maximum Junction-to-Ambient A D
Maximum Junction-to-Lead
t 10s
Steady-State
Steady-State
Symbol
RθJA
RθJL
Typ
31
59
16
Max
40
75
24
Units
V
V
A
A
mJ
W
°C
Units
°C/W
°C/W
°C/W
Rev 3: Dec. 2011
www.aosmd.com
Page 1 of 5




Alpha & Omega Semiconductors

AO4450 Datasheet Preview

AO4450 Datasheet

40V N-Channel MOSFET

No Preview Available !

AO4450
Electrical Characteristics (TJ=25°C unless otherwise noted)
Symbol
Parameter
Conditions
Min Typ Max Units
STATIC PARAMETERS
BVDSS Drain-Source Breakdown Voltage
IDSS Zero Gate Voltage Drain Current
ID=250µA, VGS=0V
VDS=40V, VGS=0V
IGSS
VGS(th)
ID(ON)
RDS(ON)
gFS
VSD
IS
Gate-Body leakage current
Gate Threshold Voltage
On state drain current
Static Drain-Source On-Resistance
VDS=0V, VGS=±20V
VDS=VGS ID=250µA
VGS=10V, VDS=5V
VGS=10V, ID=7A
VGS=4.5V, ID=5A
Forward Transconductance
VDS=5V, ID=7A
Diode Forward Voltage
IS=1A,VGS=0V
Maximum Body-Diode Continuous Current
TJ=55°C
TJ=125°C
40
1.7
45
V
1
µA
5
±100 nA
2.5 3
V
A
24 30
m
36 45
30 38 m
30 S
0.76 1
V
3.5 A
DYNAMIC PARAMETERS
Ciss Input Capacitance
Coss Output Capacitance
Crss Reverse Transfer Capacitance
Rg Gate resistance
VGS=0V, VDS=20V, f=1MHz
VGS=0V, VDS=0V, f=1MHz
516 pF
82 pF
43 pF
4.6
SWITCHING PARAMETERS
Qg(10V) Total Gate Charge
8.9 13 nC
Qg(4.5V) Total Gate Charge
Qgs Gate Source Charge
VGS=10V, VDS=20V, ID=7A
4.3 7 nC
2.4 nC
Qgd Gate Drain Charge
1.4 nC
tD(on)
Turn-On DelayTime
6.4 ns
tr Turn-On Rise Time
VGS=10V, VDS=20V, RL=2.8, 3.6 ns
tD(off)
Turn-Off DelayTime
RGEN=3
16.2 ns
tf Turn-Off Fall Time
6.6 ns
trr Body Diode Reverse Recovery Time IF=7A, dI/dt=100A/µs
18 ns
Qrr Body Diode Reverse Recovery Charge IF=7A, dI/dt=100A/µs
10 nC
A. The value of RθJA is measured with the device mounted on 1in2 FR-4 board with 2oz. Copper, in a still air environment with TA =25°C. The
value in any given application depends on the user's specific board design.
B. The power dissipation PD is based on TJ(MAX)=150°C, using 10s junction-to-ambient thermal resistance.
C. Repetitive rating, pulse width limited by junction temperature TJ(MAX)=150°C. Ratings are based on low frequency and duty cycles to keep
initialTJ=25°C.
D. The RθJA is the sum of the thermal impedence from junction to lead RθJL 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 1in2 FR-4 board with
2oz. Copper, assuming a maximum junction temperature of TJ(MAX)=150°C. The SOA curve provides a single pulse rating.
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.
Rev 3: Dec. 2011
www.aosmd.com
Page 2 of 5


Part Number AO4450
Description 40V N-Channel MOSFET
Maker Alpha & Omega Semiconductors
Total Page 5 Pages
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