Product
Summary
Sheet
Applications:
TN2640
N-Channel Enhancement-Mode DMOS FET
►
DC-DC converters
►
Solid state relays
►
Ultrasound pulsers
►
Telecom switches
►
Photo voltaic drivers
►
Analog switches
10V
90%
10%
t
(ON)
VDD
Pulse
Generator
R
L
OUTPUT
INPUT
0V
t
(OFF)
t
r
t
d(OFF)
t
f
10%
90%
90%
R
GEN
t
d(ON)
VDD
OUTPUT
0V
10%
INPUT
D.U.T.
Switching Waveform and Test Circuit
3-Lead TO-252 (K4)
Product Overview:
TN2640K4 N-Channel Enhancement-Mode DMOS FET. The device features fast switching
speeds, low parasitic capacitances and a low gate threshold for ease of driving the FET.
It’s D-Pak package gives designers the flexibility to use the device in a wide range of power
switching and amplifying applications. It has a high breakdown voltage (400V), a low on-
resistance (5.0W) and a low input capacitance (225pF) for fast switching applications. Adding
these features into the D-Pak package increases the power dissipation capability to 2.5W in
small footprints utilizing surface mount technology. It’s low input and output leakage feature
improves standby power dissipation while minimizing signal attenuation.
8-Lead SOIC (LG)
Features:
Low threshold — 2.0V max.
High input impedance
Low input capacitance
Benefits:
Can be operated directly from logic level input signals.
Eliminates the need for a level translator.
Eliminates the need to supply DC current into the
gate.
Improves overall efficiency.
Maximizes switching speed to help improve overall
efficiency.
Improves overall efficiency
Maximizes efficiency, minimizes power dissipation.
Improves overall reliability.
Improves measurement accuracy. Minimizes signal
attenuation.
Increases the power dissipation capability for surface
mount technology to 2.5W.
3-Lead TO-92 (N3)
Fast switching speeds
Low on resistance
Free from secondary breakdown
compared to bipolar transistors
Low input and output leakage
Addition of D-Pak option
120711
TN2640
N-Channel Enhancement-Mode DMOS FET
Ordering Information / Availability
Part Number
TN2640K4-G
TN2640LG-G
TN2640N3-G
Package Option
3-Lead TO-252 (Green)
8-Lead SOIC (Green)
3-Lead TO-92 (Green)
Samples
Now
Now
Now
Product Availability
4-6 Weeks ARO
4-6 Weeks ARO
4-6 Weeks ARO
-G indicates the part is RoHS compliant (Green).
Product Contact
For any questions regarding the TN2640 please contact your local area Supertex sales office, or contact the main
office in the US at:
Telephone:
Fax:
E-mail:
Web site:
800-222-9883
408-222-4895
mktg@supertex.com
www.supertex.com
1235 Bordeaux Drive, Sunnyvale, CA 94089