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Semiconductor Components Industries, LLC, 2004
December, 2004 Rev. 7
1
Publication Order Number:
NUD3105/D
NUD3105
Integrated Relay,
Inductive Load Driver
This device is used to switch inductive loads such as relays,
solenoids incandescent lamps , and small DC motors without the need
of a freewheeling diode. The device integrates all necessary items
such as the MOSFET switch, ESD protection, and Zener clamps. It
accepts logic level inputs thus allowing it to be driven by a large
variety of devices including logic gates, inverters, and
microcontrollers.
Features
Provides a Robust Driver Interface Between DC Relay Coil and
Sensitive Logic Circuits
Optimized to Switch Relays from 3.0 V to 5.0 V Rail
Capable of Driving Relay Coils Rated up to 2.5 W at 5.0 V
Internal Zener Eliminates the Need of FreeWheeling Diode
Internal Zener Clamp Routes Induced Current to Ground for Quieter
Systems Operation
Low V
DS(ON)
Reduces System Current Drain
PbFree Package is Available
Typical Applications
Telecom: Line Cards, Modems, Answering Machines, FAX
Computers and Office: Photocopiers, Printers, Desktop Computers
Consumer: TVs and VCRs, Stereo Receivers, CD Players,
Cassette Recorders
Industrial:Small Appliances, Security Systems, Automated
Test Equipment, Garage Door Openers
Automotive: 5.0 V Driven Relays, Motor Controls, Power
Latches, Lamp Drivers
Device
Package
Shipping
ORDERING INFORMATION
NUD3105LT1
SOT23
3000 Units/Reel
MARKING
DIAGRAM
1
2
3
SOT23
TO236
CASE 318
INTERNAL CIRCUIT DIAGRAM
Drain (3)
1.0 k
300 k
Gate (1)
Source (2)
JW4D
JW4
D
= Specific Device Code
= Date Code
For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
RELAY/INDUCTIVE
LOAD DRIVER
SILICON SMALLBLOCK
0.5 Ampere, 8.0 V Clamp
NUD3105LT1G
SOT23
(PbFree)
3000 Units/Reel
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