© Semiconductor Components Industries, LLC, 2009
October, 2009 − Rev. 5
1 Publication Order Number:
NUD3105D/D
NUD3105D
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 free−wheeling 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 D.C. 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 Free−Wheeling Diode
• Internal Zener Clamp Routes Induced Current to Ground for Quieter
Systems Operation
• Low V
DS(on)
Reduces System Current Drain
• Pb−Free 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
INTERNAL CIRCUIT DIAGRAMS
Drain (6)
1.0 k
300 k
Gate (2)
Source (1)
Drain (3)
1.0 k
300 k
Gate (5)
Source (4)
CASE 318F
Device Package Shipping
†
ORDERING INFORMATION
MARKING
DIAGRAM
Relay, Inductive Load Driver
0.5 Amp, 8.0 V Clamp
NUD3105DMT1 SC−74 3000/Tape & Reel
SC−74
CASE 318F
STYLE 7
JW4 = Specific Device Code
D = Date Code
G = Pb−Free Package
JW4 D G
G
†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.
(Note: Microdot may be in either location)
http://onsemi.com
NUD3105DMT1G
SC−74
(Pb−Free)
3000/Tape & Reel
1
6