TN2640N3 Supertex, TN2640N3 Datasheet
TN2640N3
Manufacturer Part Number
TN2640N3
Description
TO-92
Manufacturer
Supertex
Specifications of TN2640N3
Date_code
05+
Applications
! DC-DC converters
! Solid state relays
! Ultrasound pulsers
! Telecom switches
! Photo voltaic drivers
! Analog switches
Summary
Product
Sheet
12/21/01
Features:
Low threshold — 2.0V max.
High input impedance
Low input capacitance
Fast switching speeds
Low on resistance
Free from secondary breakdown compared
to bipolar transistors
Low input and output leakage
Addition of D-Pak option
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.
TN2640 N-Channel
Enhancement-Mode DMOS FET
Low Threshold DMOS Technology
Switching Waveforms and Test Circuit
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 effi-
ciency.
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.
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