© Semiconductor Components Industries, LLC, 2003
October, 2016 − Rev. 8
1 Publication Order Number:
MDC3105/D
MDC3105
Integrated Relay,
Inductive Load Driver
This device is intended to replace an array of three to six discrete
components with an integrated SMT part. It is available in a SOT−23
package. It can be used to switch 3 to 6 Vdc inductive loads such as
relays, solenoids, incandescent lamps, and small DC motors without
the need of a free−wheeling diode.
Features
• Provides a Robust Driver Interface between DC Relay Coil and
Sensitive Logic Circuits
• Optimized to Switch Relays from a 3.0 V to 5.0 V Rail
• Capable of Driving Relay Coils Rated up to 2.5 W at 5.0 V
• Features Low Input Drive Current and Good Back−to−Front Transient
Isolation
• Internal Zener Eliminates Need for Free−Wheeling Diode
• Internal Zener Clamp Routes Induced Current to Ground for Quieter
System Operation
• Guaranteed Off State with No Input Connection
• Supports Large Systems with Minimal Off−State Leakage
• ESD Resistant in Accordance with the Class 1C Human Body Model
• Low Sat Voltage Reduces System Current Drain by Allowing Use of
Higher Resistance Relay Coils
• Pb−Free Packages are Available
Applications
• Telecom: Line Cards, Modems, Answering Machines, FAX
Machines, Feature Phone Electronic Hook Switch
• Computer and Office: Photocopiers, Printers, Desktop Computers
• Consumer: TVs and VCRs, Stereo Receivers, CD Players, Cassette
Recorders, TV Set Top Boxes
• Industrial: Small Appliances, White Goods, Security Systems,
Automated Test Equipment, Garage Door Openers
• Automotive: 5.0 V Driven Relays, Motor Controls, Power Latches,
Lamp Drivers
MARKING
DIAGRAMS
Relay, Inductive Load Driver
1
SOT−23
CASE 318
STYLE 6
SC−74
CASE 318F
STYLE 8
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
ORDERING INFORMATION
*Date Code orientation and/or overbar may
vary depending upon manufacturing location.
1
JW M G
G
JW = Specific Device Code
M = Date Code*
G = Pb−Free Package
JW M G
G
(Note: Microdot may be in either location)
1
SOT−563
CASE 463A
STYLE 4
1
JW M G
G
1
6
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