Supertex inc.
Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com
DN2450
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
►Battery operated systems
►Voltage to current converters
►Constant current sources
►Current limiters
►Voltage limiters
General Description
These low threshold depletion-mode (normally-on) transistors
utilize an advanced vertical DMOS structure and Supertex’s well-
proven silicon-gate manufacturing process. This combination
produces devices with the power handling capabilities of bipolar
transistors and with the high input impedance and positive
temperature coefcient inherent in MOS devices. Characteristic of
all MOS structures, these devices are 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.
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
Maximum junction temperature 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.
Ordering Information
Device Package Options BVDSX/BVDGX
(V)
RDS(ON)
(max)
(Ω)
IDSS
(min)
(mA)
TO-252 (D-PAK) SOT-89
DN2450 DN2450K4-G DN2450N8-G 500 10 700
-G indicates package is RoHS compliant (‘Green’)
N-Channel Depletion-Mode
Vertical DMOS FETs
Pin Congurations
TO-243AA (SOT-89) (N8)
TO-252 (D-PAK) (K4)
TO-243AA (SOT-89) (N8)
TO-252 (D-PAK) (K4)
DN4EW W = Code for week sealed
Product Marking
Package may or may not include the following marks: Si or
Package may or may not include the following marks: Si or
YY = Year Sealed
WW = Week Sealed
L = Lot Number
= “Green” Packaging
Si YYWW
DN2450
LLLLLLL
GATE
SOURCE
DRAIN
DRAIN
GATE
SOURCE
DRAIN