Datasheet

UNISONIC TECHNOLOGIES CO., LTD
UT3418
Power MOSFET
N-CHANNEL ENHANCEMENT
MODE FIELD EFFECT
TRANSISTOR

DESCRIPTION
The UT3418 uses advanced trench technology to provide
excellent RDS(ON), low gate charge and operation with low gate
voltages. This device is suitable for use as a load switch or in
PWM applications.

FEATURES
* RDS(ON) < 60mΩ @VGS = 10 V
* RDS(ON) < 70mΩ @VGS = 4.5 V
* RDS(ON) < 155mΩ @VGS = 2.5 V
* Low capacitance
* Low gate charge
* Fast switching capability
* Avalanche energy specified

SYMBOL
3.Drain
2.Gate
1.Source

ORDERING INFORMATION
Ordering Number
Note:

UT3418G-AE3-R
Pin Assignment: G: Gate
D: Drain
Package
SOT-23
Pin Assignment
1
2
3
S
G
D
Packing
Tape Reel
S: Source
MARKING
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Copyright © 2009 Unisonic Technologies Co., Ltd
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QW-R502-226.E
UT3418

Power MOSFET
ABSOLUTE MAXIMUM RATINGS (TA = 25°С, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNITS
Drain-Source Voltage
VDSS
30
V
Gate-Source Voltage
VGSS
±12
V
Continuous Drain Current
ID
3.8
A
Pulsed Drain Current (Note 2)
IDM
15
A
Power Dissipation
PD
1.4
W
Junction Temperature
TJ
+150
°C
Storage Temperature
TSTG
-55 ~ +150
°C
Notes: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2. Pulse width limited by TJ(MAX)

THERMAL DATA
PARAMETER
Junction to Ambient

SYMBOL
θJA
MIN
TYP
100
MAX
125
UNIT
°C/W
ELECTRICAL CHARACTERISTICS (Ta=25°C, unless otherwise specified)
PARAMETER
OFF CHARACTERISTICS
Drain-Source Breakdown Voltage
Drain-Source Leakage Current
Gate-Source Leakage Current
ON CHARACTERISTICS
Gate-Threshold Voltage
SYMBOL
Drain-Source On-State Resistance
RDS(ON)
TEST CONDITIONS
BVDSS
IDSS
IGSS
ID=250μA, VGS=0V
VDS=24V, VGS=0V
VGS=±12V, VDS=0V
30
VGS(TH)
VDS=VGS, ID=250µA
VGS=10V, ID=3.8A
VGS=4.5V, ID=3.5A
VGS=2.5V, ID=1A
VDS=5V, VGS=4.5V
1
On-State Drain Current
ID(ON)
DYNAMIC PARAMETERS
Input Capacitance
CISS
VDS=15V, VGS=0V, f=1.0MHz
Output Capacitance
COSS
Reverse Transfer Capacitance
CRSS
SWITCHING PARAMETERS
Turn-ON Delay Time
tD(ON)
Turn-ON Rise Time
tR
VDS=15V,RL =3.9Ω,
VGS =10V, RG=6Ω
Turn-OFF Delay Time
tD(OFF)
Turn-OFF Fall-Time
tF
Total Gate Charge
QG
VDS=15V, VGS=4.5V,
Gate Source Charge
QGS
ID=3.8A
Gate Drain Charge
QGD
SOURCE- DRAIN DIODE RATINGS AND CHARACTERISTICS
Diode Forward Voltage
VSD
IS=1A, VGS=0V
Maximum Body-Diode Continuous Current
IS
Body Diode Reverse Recovery Time
tRR
IF=3.8A, dI/dt=100A/μs
Body Diode Reverse Recovery Charge
QRR
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
TYP
MAX
UNIT
0.001
1
100
V
µA
nA
1.4
43
52
101
1.8
60
70
155
V
mΩ
mΩ
mΩ
A
226
39
29
270
pF
pF
pF
2.6
3.2
14.5
2.1
3
1.4
0.55
4
5
22
3
3.6
ns
ns
ns
ns
nC
nC
nC
0.81
1
2.5
13
5
V
A
ns
nC
15
10.2
3.8
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QW-R502-226.E
UT3418

Power MOSFET
TYPICAL CHARACTERISTICS
300
Drain Current vs. Drain-Source
Breakdown Voltage
300
250
250
200
200
150
150
100
100
50
50
0
0
0
10
20
30
40
50
Drain-Source Breakdown Voltage, BVDSS(V)
5
Drain-Source On-State
Resistance Characteristics
Drain Current vs.
Gate Threshold Voltage
0
0.2
0.8 1.0 1.2
0.4 0.6
Gate Threshold Voltage, VTH (V)
Drain Current vs.
Source to Drain Voltage
1.2
1.0
4
VGS=10V
0.8
3
VGS=4.5V
0.6
2
0.4
1
0.2
VGS=2.5V
0
0
0
50
100
150
200
Drain to Source Voltage, VDS (mV)
0
0.2
0.4
0.6
0.8
1.0
Source to Drain Voltage, VSD (V)
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R502-226.E