DN3145
N-Channel Depletion-Mode
Vertical DMOS FETs
Features
►
►
►
►
►
►
High input impedance
Low input capacitance
Fast switching speeds
Low on-resistance
Free from secondary breakdown
Low input and output leakage
General Description
The Supertex DN3145 is a depletion-mode (normally-on)
transistor utilizing an advanced vertical DMOS structure and
Supertex’s well-proven silicon-gate manufacturing process.
This combination produces a device with the power handling
capabilities of bipolar transistors and with the high input
impedance and positive temperature coefficient inherent
in MOS devices. Characteristic of all MOS structures, this
device is free from thermal runaway and thermally-induced
secondary breakdown.
Supertex’s vertical DMOS FETs are ideally suited to a
wide range of switching and amplifying applications where
high breakdown voltage, high input impedance, low input
capacitance, and fast switching speeds are desired.
Applications
►
►
►
►
►
►
Normally-on switches
Solid state relays
Converters
Constant current sources
Power supply circuits
Telecom
Ordering Information
Device
DN3145
Package Option
TO-243AA (SOT-89)
DN3145N8-G
BV
DSX
/BV
DGX
(V)
R
DS(ON)
(max)
(Ω)
I
DSS
(min)
(mA)
450
60
120
-G indicates package is RoHS compliant (‘Green’)
Absolute Maximum Ratings
Parameter
Drain-to-source voltage
Drain-to-gate voltage
Gate-to-source voltage
Operating and storage
temperature
Soldering temperature*
Value
BV
DSX
BV
DGX
±20V
-55
O
C to +150
O
C
300
O
C
Pin Configuration
DRAIN
GATE
SOURCE
DRAIN
TO-243AA (SOT-89) (N8)
Product Marking
DN1MW
Absolute Maximum Ratings are those values beyond which damage to the device
may occur. Functional operation under these conditions is not implied. Continuous
operation of the device at the absolute rating level may affect device reliability. All
voltages are referenced to device ground.
* Distance of 1.6mm from case for 10 seconds.
W = Code for week sealed
= “Green” Packaging
TO-243AA (SOT-89) (N8)
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
●
Tel: 408-222-8888
●
www.supertex.com
DN3145
Thermal Characteristics
Package
TO-243AA
(continuous)
(mA)
I
D
†
(pulsed)
(mA)
I
D
Power Dissipation
@T
A
= 25 C
(W)
O
θ
jc
(
O
C/W)
θ
ja
(
O
C/W)
I
DR
†
(mA)
I
DRM
(mA)
100
300
1.3
‡
34
97
‡
100
300
Notes:
† I
D
(continuous) is limited by max rated T
j
.
‡ Mounted on FR4 board, 25mm x 25mm x 1.57mm.
Electrical Characteristics
(T
Sym
BV
DSX
V
GS(OFF)
ΔV
GS(OFF)
I
GSS
I
D(OFF)
I
DSS
R
DS(ON)
ΔR
DS(ON)
G
FS
C
ISS
C
OSS
C
RSS
t
d(ON)
t
r
t
d(OFF)
t
f
V
SD
t
rr
Parameter
Gate-to-source off voltage
A
= 25
O
C unless otherwise specified)
Min
450
-1.5
-
-
-
-
120
-
-
140
-
-
-
-
-
-
-
-
-
Typ
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
800
Max
-
-3.5
-4.5
100
1.0
1.0
-
60
1.1
-
120
15
10
10
15
20
35
1.8
-
Units
V
V
mV/
O
C
nA
µA
mA
mA
Ω
%/
O
C
mmho
pF
Conditions
V
GS
= -5.0V, I
D
= 100µA
V
DS
= 15V, I
D
= 10µA
V
DS
= 15V, I
D
= 10µA
V
GS
= ±20V, V
DS
= 0V
V
DS
= Max rating, V
GS
= -5.0V
V
DS
= 0.8 Max Rating,
V
GS
= -5.0V, T
A
= 125
O
C
V
GS
= 0V, V
DS
= 15V
V
GS
= 0V, I
D
= 100mA
V
GS
= 0V, I
D
= 100mA
V
DS
= 10V, I
D
= 100mA
V
GS
= -5.0V,
V
DS
= 25V,
f = 1.0MHz
V
DD
= 25V,
I
D
= 100mA,
R
GEN
= 25Ω,
V
GS
= -5.0V, I
SD
= 100mA
V
GS
= -5.0V, I
SD
= 100mA
Drain-to-source breakdown voltage
Change in V
GS(OFF)
with temperature
Gate body leakage current
Drain-to-source leakage current
Saturated drain-to-source current
Static drain-to-source on-state
resistance
Change in R
DS(ON)
with temperature
Forward transconductance
Input capacitance
Common source output capacitance
Reverse transfer capacitance
Turn-on delay time
Rise time
Turn-off delay time
Fall time
Diode forward voltage drop
Reverse recovery time
ns
V
ns
Notes:
1. All D.C. parameters 100% tested at 25
O
C unless otherwise stated. (Pulse test: 300µs pulse, 2% duty cycle.)
2. All A.C. parameters sample tested.
Switching Waveforms and Test Circuit
0V
90%
INPUT
-10V
V
DD
PULSE
GENERATOR
R
L
OUTPUT
10%
t
(ON)
t
(OFF)
t
r
t
d(OFF)
t
F
10%
t
d(ON)
V
DD
R
GEN
10%
90%
D.U.T.
INPUT
OUTPUT
0V
90%
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
●
Tel: 408-222-8888
●
www.supertex.com
2
DN3145
3-Lead TO-243AA (SOT-89) Package Outline (N8)
b
b1
Symbol
Dimensions
(mm)
MIN
NOM
MAX
A
1.40
-
1.60
b
0.44
-
0.56
b1
0.36
-
0.48
C
0.35
-
0.44
D
4.40
-
4.60
D1
1.62
-
1.83
E
2.29
-
2.60
E1
2.13
-
2.29
e
1.50
BSC
e1
3.00
BSC
H
3.94
-
4.25
L
0.89
-
1.20
JEDEC Registration TO-243, Variation AA, Issue C, July 1986.
Drawings not to scale.
Supertex Doc. #:
DSPD-3TO243AAN8, Version D070908.
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline
information go to
http://www.supertex.com/packaging.html.)
Supertex inc.
does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such applications unless it receives an
adequate “product liability indemnification insurance agreement.”
Supertex inc.
does not assume responsibility for use of devices described, and limits its liability to the
replacement of the devices determined defective due to workmanship. No responsibility is assumed for possible omissions and inaccuracies. Circuitry and specifications
are subject to change without notice. For the latest product specifications refer to the
Supertex inc.
website: http//www.supertex.com.
©2008
All rights reserved. Unauthorized use or reproduction is prohibited.
Doc.# DSFP-DN3145
A103108
1235 Bordeaux Drive, Sunnyvale, CA 94089
Tel: 408-222-8888
www.supertex.com
3
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