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PDF TD9944 Data sheet ( Hoja de datos )
| Número de pieza | TD9944 | |
| Descripción | Dual N-Channel Enhancement-Mode Vertical DMOS FETs | |
| Fabricantes | Supertex | |
| Logotipo |  |
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Supertex inc.
TD9944
Dual N-Channel Enhancement-Mode
Vertical DMOS FET
Features
►► Dual N-channel devices
►► Low threshold – 2.0V max.
►► High input impedance
►► Low input capacitance – 125pF max.
►► Fast switching speeds
►► Low on-resistance
►► Free from secondary breakdown
►► Low input and output leakage
Applications
►► Logic level interfaces – ideal for TTL and CMOS
►► Solid state relays
►► Battery operated systems
►► Photo voltaic drives
►► Analog switches
►► General purpose line drivers
►► Telecom switches
General Description
This low threshold, enhancement-mode (normally-off)
transistor utilizes a 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 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
very low threshold voltage, high breakdown voltage, high
input impedance, low input capacitance, and fast switching
speeds are desired.
Ordering Information
Part Number
Package Option
TD9944TG-G
8-Lead SOIC
-G denotes a lead (Pb)-free / RoHS compliant package.
Packing
2000/Reel
Product Summary
BVDSS/BVDGS
RDS(ON)
(max)
240V
6.0Ω
ID(ON)
(min)
1.0A
VGS(th)
(max)
2.0V
Absolute Maximum Ratings
Parameter
Drain-to-source voltage
Drain-to-gate voltage
Gate-to-source voltage
Value
BVDSS
BVDGS
±20V
Operating and storage temperature
-55OC to +150OC
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.
Typical Thermal Resistance
Package
θja
TO-243AA (SOT-89)
133OC/W
Note:
Mounted on FR5 Board, 25mm x 25mm x 1.57mm
Pin Configuration
D2
D2
D1
D1
G2
S2
G1
S1
8-Lead SOIC
Product Marking
TD99
44TG
YYWW
YY = Year Sealed
WW = Week Sealed
= “Green” Packaging
Package may or may not include the following marks: Si or
8-Lead SOIC
Doc.# DSFP-TD9944
B080713
Supertex inc.
www.supertex.com
1 page  
8-Lead SOIC (Narrow Body) Package Outline (TG)
4.90x3.90mm body, 1.75mm height (max), 1.27mm pitch
D θ1
8
TD9944
Note 1
(Index Area
D/2 x E1/2)
E1 E
L2 Gauge
Plane
1
Top View
A A2
A1
A
Seating
Plane
eb
Side View
A
Note 1
h
L
L1
θ
View B
h
Seating
Plane
View B
View A-A
Note:
1. This chamfer feature is optional. A Pin 1 identifier must be located in the index area indicated. The Pin 1 identifier can be: a molded mark/identifier;
an embedded metal marker; or a printed indicator.
Symbol
A A1 A2 b D E E1 e h L L1 L2 θ θ1
MIN 1.35* 0.10 1.25 0.31 4.80* 5.80* 3.80*
0.25 0.40
0O 5O
Dimension
(mm)
NOM
-
-
-
-
4.90
6.00
3.90
1.27
BSC
-
-
1.04 0.25
REF BSC
-
-
MAX 1.75 0.25 1.65* 0.51 5.00* 6.20* 4.00*
0.50 1.27
8O 15O
JEDEC Registration MS-012, Variation AA, Issue E, Sept. 2005.
* This dimension is not specified in the JEDEC drawing.
Drawings are not to scale.
Supertex Doc. #: DSPD-8SOLGTG, Version I041309.
(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)
©2013 Supertex inc. All rights reserved. Unauthorized use or reproduction is prohibited.
Supertex inc.
Doc.# DSFP-TD9944
B080713
1235 Bordeaux Drive, Sunnyvale, CA 94089
Tel: 408-222-8888
5 www.supertex.com
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