Datasheet

18N25
UNISONIC TECHNOLOGIES CO., LTD
Power MOSFET
18A, 250V N-CHANNEL
POWER MOSFET

1
DESCRIPTION
TO-220F
The UTC 18N25 is an N-channel enhancement mode power
MOSFET using UTC’s advanced planar stripe and DMOS technology
to provide perfect performance.
This technology can withstand high energy pulse in the avalanche
and commutation mode. It can provide minimum on-state resistance
and high switching speed.
This device is generally applied in active power factor correction
and high efficient switched mode power supplies.

1
TO-263
FEATURES
* R DS(ON) =0.16Ω @ V GS =10V
* High switching speed

SYMBOL
2.Drain
1.Gate
3.Source

ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
18N25L-TF3-T
18N25G-TF3-T
18N25L-TQ2-T
18N25G-TQ2-T
18N25L-TQ2-R
18N25G-TQ2-R
Note: Pin Assignment: G: Gate D: Drain
S: Source
Package
TO-220F
TO-263
TO-263
Pin Assignment
1
2
3
G
D
S
G
D
S
G
D
S
Packing
Tube
Tube
Tape Reel
18N25L-TA3-T
(1) Packing Type
(1) T: Tube, R: Tape Reel
(2) Package Type
(2) TF3: TO-220F, TQ2: TO-263
(3) Lead Free
(3) L: Lead Free, G: Halogen Free
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Copyright © 2013 Unisonic Technologies Co., Ltd
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18N25

Power MOSFET
ABSOLUTE MAXIMUM RATINGS (TC=25°C, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Drain to Source Voltage
V DSS
250
V
Gate to Source Voltage
V GSS
±20
V
Continuous
ID
18
A
Drain Current
Pulsed (Note 2)
I DM
72
A
Avalanche Energy
Single Pulsed (Note 3)
E AS
945
mJ
Avalanche Current (Note 2)
I AR
18
A
TO-220F
40
W
Power Dissipation
PD
TO-263
138
°C
Junction Temperature
TJ
+150
°C
Storage Temperature
T STG
-55 ~ +150
°C
Note: 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 maximum junction temperature
3. Starting T J =25°C , L=5.2mH, I AS =18A, V DD =50V, R G =25Ω.
4. Drain current limited by maximum junction temperature.

THERMAL DATA
PARAMETER
Junction to Ambient
TO-220F
Junction to Case
TO-263

SYMBOL
θ JA
θ Jc
RATINGS
62.5
3.1
0.9
UNIT
°C/W
°C/W
°C/W
ELECTRICAL CHARACTERISTICS (T C =25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
OFF CHARACTERISTICS
Drain-Source Breakdown Voltage
BV DSS
V GS =0V, I D =250µA
Drain-Source Leakage Current
I DSS
V DS =250V, V GS =0V
Forward
V GS =20V, V DS = 0V
Gate-Source Leakage Current
I GSS
Reverse
V GS = -20V, V DS = 0V
ON CHARACTERISTICS
Gate Threshold Voltage
V GS(TH) V DS =V GS , I D =250µA
Drain-Source On-State Resistance
R DS(ON) V GS =10V, I D =18A
DYNAMIC PARAMETERS
Input Capacitance
C ISS
Output Capacitance
C OSS
V DS =25V,V GS =0V,f=1.0MHz
Reverse Transfer Capacitance
C RSS
SWITCHING PARAMETERS
Total Gate Charge
QG
V DS =125V, V GS =10V,
Gate-Source Charge
Q GS
I D =18A (Note 1,2)
Gate-Drain Charge
Q GD
Turn-ON Delay Time
t D(ON)
Turn-ON Rise Time
tR
V DD =30V, I D =18A,
R G =25Ω (Note 1,2)
Turn-OFF Delay Time
t D(OFF)
Turn-OFF Fall Time
tF
SOURCE- DRAIN DIODE RATINGS AND CHARACTERISTICS
Maximum Body-Diode Continuous Current
IS
Maximum Body-Diode Pulsed Current
I SM
Drain-Source Diode Forward Voltage
V SD
I S =18A, V GS =0V
Note: 1. Pulse Test : Pulse width≤300μs, Duty cycle≤2%
2. Essentially independent of operating temperature
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
TYP MAX UNIT
250
1
100
-100
2.0
V
µA
nA
4.0
0.16 0.24
V
Ω
2200 2860
330 430
25
40
pF
pF
pF
30
10
10
15
130
30
100
25
195
45
150
nC
nC
nC
ns
ns
ns
ns
18
72
1.4
A
A
V
45
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18N25

Power MOSFET
TEST CIRCUITS AND WAVEFORMS
+
DUT
VDS
RG
L
-
ISD
VGS
VDD
Driver
Same Type
as DUT
dv/dt controlled by RG
ISD controlled by pulse period
Peak Diode Recovery dv/dt Test Circuit & Waveforms
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
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R502-786.B
18N25
Power MOSFET
TEST CIRCUITS AND WAVEFORMS(Cont.)

Gate Charge
VGS
Same Type
as DUT
QG
12V
10V
200nF
50kΩ
VDS
300nF
QGS
QGD
VGS
DUT
3mA
Charge
Test Circuit
Waveforms
Resistive Switching
VDS
RG
VDS
VGS
10V
90%
RD
VDD
10%
VGS
DUT
td(ON)
tR
td(OFF) tF
tON
Test Circuit
tOFF
Waveforms
Unclamped Inductive Switching
2
EAS= 1
2 LIAS
VDS
RG
BVDSS
BVDSS-VDD
BVDSS
ID
L
IAS
10V
ID(t)
DUT
tP
VDD
VDD
VDS(t)
tP
Test Circuit
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
Time
Waveforms
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18N25
Power MOSFET
TYPICAL CHARACTERISTICS
Drain Current, ID (µA)
300
Drain Current vs. Drain-Source
Breakdown Voltage
Drain Current vs. Gate Threshold Voltage
300
250
250
Drain Current, ID (µA)

200
150
100
200
150
100
50
50
0
0
0
0
60
180
240 300
120
Drain-Source Breakdown Voltage, BVDSS (V)
Drain-Source On-State Resistance
Characteristics
0.6
1.8 2.4
1.2
3.0 3.6
Gate Threshold Voltage, VTH (V)
Drain Current vs. Source to Drain Voltage
20
25
Drain Current, ID (A)
Drain Current, ID (A)
VGS=10V, ID=14A
16
12
8
20
15
10
5
4
0
0
2.5
0.5
1
1.5
2
Drain to Source Voltage, VDS (V)
0
0
0.2
0.4 0.6
0.8 1.0 1.2
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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