Supertex inc.
Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com
DN2540
Features
High input impedance
Low input capacitance
Fast switching speeds
Low on-resistance
Free from secondary breakdown
Low input and output leakage
Applications
Normally-on switches
Solid state relays
Converters
Linear amplifiers
Constant current sources
Power supply circuits
Telecom
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General Description
The Supertex DN2540 is a low threshold 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.
N-Channel Depletion-Mode
Vertical DMOS FETs
Ordering Information
Device Package Options BVDSX/BVDGX
(V)
RDS(ON)
(max)
(Ω)
IDSS
(min)
(mA)
TO-92 TO-220 TO-243AA (SOT-89)
DN2540 DN2540N3-G DN2540N5-G DN2540N8-G 400 25 150
-G indicates package is RoHS compliant (‘Green’)
Absolute Maximum Ratings
Parameter Value
Drain-to-source voltage BVDSX
Drain-to-gate voltage BVDGX
Gate-to-source voltage ±20V
Operating and storage
temperature -55OC to +150OC
Soldering temperature* 300OC
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.
Pin Configurations
TO-243AA (SOT-89) (N8)
TO-220 (N5)
TO-92 (N3)
GATE
SOURCE
DRAIN
DRAIN
GATE
SOURCE
DRAIN
GATE
SOURCE
DRAIN
DRAIN
2
DN2540
Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com
Thermal Characteristics
Package
ID
(continuous)†
(mA)
ID
(pulsed)
(mA)
Power Dissipation
@TC = 25OC
(W)
θjc
(OC/W)
θja
(OC/W)
IDR
†
(mA)
IDRM
(mA)
TO-92 120 500 1.0 125 170 120 500
TO-220 500 500 15 8.3 70 500 500
TO-243AA 170 500 1.6‡
(TA = 25OC) 15 78‡170 500
Notes:
† ID (continuous) is limited by max rated Tj.
‡ Mounted on FR5 board, 25mm x 25mm x 1.57mm, TA = 25OC.
Product Marking
TO-243AA (SOT-89) (N8)
TO-220 (N5)
TO-92 (N3)
Electrical Characteristics (TA = 25OC unless otherwise specified)
Sym Parameter Min Typ Max Units Conditions
BVDSX Drain-to-source breakdown voltage 400 - - V VGS = -5.0V, ID = 100µA
VGS(OFF) Gate-to-source off voltage -1.5 - -3.5 V VDS = 25V, ID = 10µA
ΔVGS(OFF) Change in VGS(OFF) with temperature - - -4.5 mV/OC VDS = 25V, ID = 10µA
IGSS Gate body leakage current - - 100 nA VGS = ±20V, VDS = 0V
ID(OFF) Drain-to-source leakage current
- - 10 µA VDS = Max rating, VGS = -10V
- - 1.0 mA VDS = 0.8 Max Rating,
VGS = -10V, TA = 125OC
IDSS Saturated drain-to-source current 150 - - mA VGS = 0V, VDS = 25V
RDS(ON)
Static drain-to-source on-state
resistance - 17 25 Ω VGS = 0V, ID = 120mA
ΔRDS(ON) Change in RDS(ON) with temperature - - 1.1 %/OC VGS = 0V, ID = 120mA
GFS Forward transconductance - 325 - mmho VDS = 10V, ID = 100mA
CISS Input capacitance - 200 300
pF
VGS = -10V,
VDS = 25V,
f = 1MHz
COSS Common source output capacitance - 12 30
CRSS Reverse transfer capacitance - 1.0 5.0
L = Lot Number
YY = Year Sealed
WW = Week Sealed
= “Green” Packaging
DN2540N5
LLLLLLLLL
YYWW
YY = Year Sealed
WW = Week Sealed
= “Green” Packaging
S i D N
2540
YYWW
DN5DW W = Code for week sealed
= “Green” Packaging
Package may or may not include the following marks: Si or Package may or may not include the following marks: Si or
Package may or may not include the following marks: Si or
3
DN2540
Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com
Sym Parameter Min Typ Max Units Conditions
td(ON) Turn-on delay time - - 10
ns
VDD = 25V,
ID = 150mA,
RGEN = 25Ω,
trRise time - - 15
td(OFF) Turn-off delay time - - 15
tfFall time - - 20
VSD Diode forward voltage drop - - 1.8 V VGS = -10V, ISD = 120mA
trr Reverse recovery time - 800 - ns VGS = -10V, ISD = 1.0A
Notes:
All D.C. parameters 100% tested at 25OC unless otherwise stated. (Pulse test: 300µs pulse, 2% duty cycle.)
All A.C. parameters sample tested.
1.
2.
90%
10%
90% 90%
10%
10%
Pulse
Generator
VDD
RL
OUTPUT
D.U.T
.
t(ON)
td(ON)
t(OFF)
td(OFF) tf
tr
INPUT
INPUT
OUTPUT
0V
VDD
RGEN
0V
-10V
Switching Waveforms and Test Circuit
Electrical Characteristics (cont.)
4
DN2540
Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com
Typical Performance Curves
Output Characteristics
0.5
0.4
0.3
0.2
0.1
0
0 80 160 240 320 400
VDS (Volts)
Transconductance vs. Drain Current Power Dissipation vs. Temperature
0 15010050
10
20
01257525
TO-220
TO-92
TA = 25OC
TO-243AA
VGS = 1.0V
0.5V
-0.5V
-1.0V
0V
Saturation Characteristics
250
200
150
100
50
00 1 2 3 4 5
0.5V
0V
-0.5V
-1.0V
Maximum Rated Safe Operating Area
1 100010010
1
0.1
0.01
0.001
TO-92/TO-220 (pulsed)
TO-243AA (DC)
TO-220 (DC)
TO-92 (DC)
Thermal Response Characteristics
Thermal Resistance (normalized)
1.0
0.8
0.6
0.4
0.2
0
TO-243AA
TA = 25OC
PD = 1.6W
0.5
0.4
0.3
0.2
0.1
0
0 50 100 150 200 250
V
DS = 10V
ID (Amperes)
VDS (Volts)
GFS (Siemens)
ID (Milliamps) TC (OC)
PD (Watts)
VDS (Volts)
ID (Amperes)
tp (seconds)
ID (Milliamps)
VGS = 1.0V
TO-92
TC = 25OC
PD = 1.0W
TO-220
TC = 25OC
PD = 15W
T
A = 25OC
TC = 25OC
TA = 25OC
TA = -55OC
TA = 125OC
0.001 0.01 0.1 1.0 10
5
DN2540
Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com
Typical Performance Curves (cont.)
BVDSS Variation with Temperature
BVDSS (normalized)
1.1
1.05
1.0
0.95
0.9
-50 0 80 160 240 320 400
050 100 150
Transfer Characteristics
VGS (Volts)
VDS (Volts)
ID (Amperes)
0.40
0.32
0.24
0.16
0.08
0
-3 -2 -1 0 1 2
Capacitance Vs. Drain-to-Source Voltage
C (Picofarads)
200
150
100
50
0
0 10 20 30 40
VGS = -5.0V
COSS
CRSS
CISS
TA = -55OC
RDS(ON) @ ID = 120mA
VGS(OFF) @ 10µA
VDS = 40V
200pF
170pF
On-Resistance vs. Drain Current
100
80
60
40
20
0
QC (Nanocoulombs)
RDS(ON) (Ohms)
-50 0 50 100 150
0 0.4 0.8 1.2 1.6 2.0
VGS(OFF) and RDS(ON) Variation with Temperature
2.5
2
1.5
1
0.5
0
15
10
5
0
-5
Normalized
Gate Drive Dynamic Characteristics
VGS (Volts)
Tj (OC) ID (milliamps)
VGS = 0V
VDS = 10V
VGS = 10V
T
j
(
O
C)
VDS = 20V
TA = 25OC
TA = 125OC
6
DN2540
Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com
3-Lead TO-92 Package Outline (N3)
Seating
Plane
1
2
3
Front View Side View
Bottom View
E1 E
D
e1
L
e
c
1 2 3
b
A
Symbol A b c D E E1 e e1 L
Dimensions
(inches)
MIN .170 .014†.014†.175 .125 .080 .095 .045 .500
NOM - - - - - - - - -
MAX .210 .022†.022†.205 .165 .105 .105 .055 .610*
JEDEC Registration TO-92.
* This dimension is not specified in the JEDEC drawing.
† This dimension differs from the JEDEC drawing.
Drawings not to scale.
Supertex Doc.#: DSPD-3TO92N3, Version E041009.
7
DN2540
Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com
3-Lead TO-220 Package Outline (N5)
Symbol A A1 A2 b b2 c D D1 D2 E E1 E2 e H1 L L1 Q ΦP
Dimen-
sion
(inches)
MIN .140 .020 .080 .015 .045 .012†.560 .326†.474†.380 .270 0.20*
.100
BSC
.230 .500 .200* .100 .139
NOM - - - .027 .057 - - - - - - - - - - - -
MAX .190 .055 .120†.040 .070 .024 .650 .361†.507 .420 .350 .030 .270 .580 .250 .135 .161
JEDEC Registration TO-220, Variation AB, Issue K, April 2002.
* This dimension is not specified in the JEDEC drawing.
† This dimension differs from the JEDEC drawing.
Drawings not to scale.
Supertex Doc. #: DSPD-3TO220N5, Version C041009.
L
A2
A
e
View
B
1 2 3
D
D1
Q
4
E2
EΦP
Seating
Plane
A1
A
A
Chamfer
Optional
H1
E
D2
Thermal
Pad
Front View Side View View A - A
L1
b
b2
123
E1
View B
c
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)
©2010 Supertex inc. All rights reserved. Unauthorized use or reproduction is prohibited. Supertex inc.
1235 Bordeaux Drive, Sunnyvale, CA 94089
Tel: 408-222-8888
www.supertex.com
8
(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.)
DN2540
Doc.# DSFP-DN2540
B041310
3-Lead TO-243AA (SOT-89) Package Outline (N8)
Symbol A b b1 C D D1 E E1 e e1 H L
Dimensions
(mm)
MIN 1.40 0.44 0.36 0.35 4.40 1.62 2.29 2.00†
1.50
BSC
3.00
BSC
3.94 0.89
NOM - - - - - - - - - -
MAX 1.60 0.56 0.48 0.44 4.60 1.83 2.60 2.29 4.25 1.20
JEDEC Registration TO-243, Variation AA, Issue C, July 1986.
† This dimension differs from the JEDEC drawing
Drawings not to scale.
Supertex Doc. #: DSPD-3TO243AAN8, Version E051509.
bb1
D
D1
EHE1
C
A
1 2 3
e
e1
Top View Side View
L
