Datasheet

UNISONIC TECHNOLOGIES CO., LTD
UT4450
Power MOSFET
7.0A, 40V N-CHANNEL
POWER MOSFET

DESCRIPTION
The UTC UT4450 is an N-channel MOSFET. it uses UTC’s
advanced technology to provide the customers with a minimum on
state resistance, high switching speed and low gate charge.
The UTC UT4450 is suitable for PWM applications or use as a
load switch.

FEATURES
* RDS(ON)<30mΩ @ VGS=10V, ID=7A
RDS(ON)<38mΩ @ VGS=4.5V, ID=5A
* High switching speed
* Low gate charge

SYMBOL

ORDERING INFORMATION
Ordering Number
Note:

UT4450G-S08-R
Pin Assignment: G: Gate
Package
D: Drain
SOP-8
S: Source
1
S
2
S
Pin Assignment
3 4 5 6
S G D D
7
D
8
D
Packing
Tape Reel
MARKING
www.unisonic.com.tw
Copyright © 2016 Unisonic Technologies Co., Ltd
1 of 8
QW-R502-898.E
UT4450

Power MOSFET
PIN CONFIGURATION
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 8
QW-R502-898.E
UT4450

Power MOSFET
ABSOLUTE MAXIMUM RATINGS (TC=25°C, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Drain-Source Voltage
VDSS
40
V
Gate-Source Voltage
VGSS
±20
V
Continuous
TA=25°C
ID
7
A
Drain Current
Pulsed (Note 2)
IDM
28
A
Avalanche Current (Note 2)
IAS
14
A
Avalanche Energy
L=0.1mH (Note 2)
EAS
10
mJ
Power Dissipation (Note 3) TA=25°C
PD
3.1
W
Junction Temperature
TJ
+150
°C
Storage Temperature Range
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. 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.
3. Based on TJ(MAX)=150°C, using≤10s.

THERMAL CHARACTERISTICS
PARAMETER
SYMBOL
θJA
θJC
Junction to Ambient
Junction to Case

RATINGS
90
40.3
UNIT
°C/W
°C/W
ELECTRICAL CHARACTERISTICS (TJ =25°C, unless otherwise specified)
PARAMETER
OFF CHARACTERISTICS
Drain-Source Breakdown Voltage
Drain-Source Leakage Current
Forward
Gate-Source Leakage Current
Reverse
ON CHARACTERISTICS
Gate Threshold Voltage
SYMBOL
Static Drain-Source On-State Resistance
RDS(ON)
BVDSS
IDSS
IGSS
VGS(TH)
TEST CONDITIONS
ID=250µA, VGS=0V
VDS=40V, VGS=0V
VGS=+20V, VDS=0V
VGS=-20V, VDS=0V
40
VDS=VGS, ID=250µA
VGS=10V, ID=7.0A
VGS=4.5V, ID=5.0A
1.0
DYNAMIC PARAMETERS
Input Capacitance
CISS
VGS=0V, VDS=20V, f=1.0MHz
Output Capacitance
COSS
Reverse Transfer Capacitance
CRSS
SWITCHING PARAMETERS (Note 2)
Total Gate Charge
QG
VGS=10V, VDS=20V, ID=7.0A
Gate to Source Charge
QGS
Gate to Drain Charge
QGD
Turn-ON Delay Time
tD(ON)
VDS=20V, VGS=10V, RGEN=3Ω,
Rise Time
tR
RL=2.8Ω
Turn-OFF Delay Time
tD(OFF)
Fall-Time
tF
SOURCE- DRAIN DIODE RATINGS AND CHARACTERISTICS
Maximum Body-Diode Continuous Current
IS
Drain-Source Diode Forward Voltage
VSD
IS=1.0A, VGS=0V
Body Diode Reverse Recovery Time
trr
IF=7.0A, dI/dt=100A/µs
Body Diode Reverse Recovery Charge
Qrr
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN TYP MAX UNIT
V
1
µA
+100 nA
-100 nA
3.0
30
38
V
mΩ
mΩ
516
82
43
pF
pF
pF
8.9
2.4
1.4
6.4
3.6
16.2
6.6
nC
nC
nC
ns
ns
ns
ns
3.5
1
18
10
A
V
ns
nC
3 of 8
QW-R502-898.E
UT4450

Power MOSFET
TEST CIRCUITS AND WAVEFORMS
VDS
RG
90%
RD
VGS
VDS
10V
10%
DUT
VGS
td(ON)
tON
Resistive Switching Test Circuit
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
tR
td(OFF) tF
tOFF
Resistive Switching Waveforms
4 of 8
QW-R502-898.E
UT4450

Power MOSFET
TEST CIRCUITS AND WAVEFORMS(Cont.)
+
DUT
VDS
RG
L
ISD
VGS
VDD
Driver
Same Type
as DUT
dv/dt controlled by RG
ISD controlled by pulse period
VGS
(Driver)
D=
Gate Pulse Width
Gate Pulse Period
10V
IFM, Body Diode Forward Current
ISD
(DUT)
di/dt
IRM
Body Diode Reverse Current
VDS
(DUT)
Body Diode Recovery dv/dt
VSD
VDD
Body Diode Forward
Voltage Drop
Peak Diode Recovery dv/dt Test Circuit and Waveforms
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 8
QW-R502-898.E
UT4450

Power MOSFET
TYPICAL CHARACTERISTICS
Transfer Characteristics
On-Region Characteristics
40
40
5V
VDS=5V
4.5V
Drain Current,ID (A)
Drain Current,-ID (A)
10V
30
4V
20
10
30
20
10
VGS=3.5V
125℃
25℃
0
0
1
3
4
2
Drain to Source Voltage,VDS (V)
5
1
2
3
4
5
Gate to Source Voltage,VGS (V)
6
Reverse Drain Current,IS (A)
Drain to Source On-Resistance,
RDS(ON) (mΩ)
Normalized On-Resistance
Drain to Source On-Resistance,
RDS(ON) (mΩ)
0
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
6 of 8
QW-R502-898.E
UT4450
Power MOSFET
TYPICAL CHARACTERISTICS(Cont.)
Capacitance (pF)
Gate to Source Voltage,VGS (V)

100.0
Maximum Forward Biased Safe Operating
Area (Note E)
10000
Single Pulse Power Rating Junctionto-Ambient (Note E)
TA=25℃
10.0
10μs
RDS(ON)
Limited
1000
100μs
100
1ms
1.0
10ms
DC
1
10
100
Drain to Source Voltage,VDS (V)
10
1
0.001 0.01
1
0.1
10
Pulse Width (s)
100
1000
Normalized Transient Thermal
Resistance,ZθJA
0.1
0.1
TJ(Max)=150℃
TA=25℃
10s
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
7 of 8
QW-R502-898.E
UT4450
Power MOSFET
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
8 of 8
QW-R502-898.E