SDD450

DC Input

Photo-Darlington

Optocoupler

The SDD450 consists of a Photo Darlington transistor optically coupled to a light emitting diode. Optical coupling between the input LED

and output Photo Darlington allows for high isolation levels while maintaining low-level DC signal control capability. The SDD450 provides

an optically isolated method of controlling many interface applications such as telecommunications, industrial control and instrumentation

circuitry.

DESCRIPTION

FEATURES

APPLICATIONS

OPTIONS/SUFFIXES*

SCHEMATIC DIAGRAM

ABSOLUTE MAXIMUM RATINGS*

APPROVALS

High current transfer ratio (CTR:MIN 600%)

•

High input-to-output isolation voltage (3,750 Vrms)

•

Ultra-miniature 4 pin SOP package

•

High Load Voltage (Vceo = 300V MIN)

•

Home Appliances

•

Office Automation Equipment

•

Telecom / Datacom

•

Power Supplies

•

Fax / Modems

•

Tape and Reel

NOTE: Suffixes listed above are not included in marking on

device for part number identification.

PARAMETER

UNIT

MIN

TYP

MAX

Storage Temperature

°C

-40

125

Operating Temperature

°C

-40

100

Continuous Input Current

mA

50

Transient Input Current

A

1

Reverse Input Control

Voltage

V

6

Output Power Dissipation

mW

170

*The values indicated are absolute stress ratings. Functional operation of the

device is not implied at these or any conditions in excess of those defined in

electrical characteristics section of this document. Exposure to Absolute

Ratings may cause permanent damage to the device and may adversely

affect reliability.

UL / C-UL Approved, File #E201932

•

© 2004 Solid State Optronics • San José, CA

www.ssousa.com • +1.408.293.4600

Page 1 of 6

SDD450

rev 1.40 (10/25/2004)

1. Anode

2. Cathode

3. Emitter

4. Collector

1

2

4

3