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IL358

High Performance Linear Optocoupler for Optical DAA in Telecommunications

Infineon Technologies 

FEATURES

• 2.0 mm High SMT Package

• High Sensitivity (K1) at Low Operating

LED Current

• Couples AC and DC Signals

• Low Input-Output Capacitance

• Isolation Voltage, 3000 VRMS

• Low Distortion

APPLICATIONS

• Optical DAA for V.34 FAX/Modem

PCMCIA Cards

• Digital Telephone Line Isolation

DESCRIPTION

The IL350/1/8/9 family of Linear Optocoupler

consist of an IRLED optically coupled to two

photodiodes. The emitter mechanically faces

both diodes enabling them to receive approxi-

mately an equal amount of infrared light. The

diodes produce a proportional amount of pho-

tocurrents. The ratio of the photocurrents stays

constant with high accuracy when either the

LED current changes or the ambient tempera-

ture changes. Thus one can control the output

diode current optically by controlling the input

photodiode current.

The IL350/1/8/9 optocouplers can be used

with the aid of operational amplifiers in closed

loop conditions to achieve highly linear and

electrically isolated AC and or DC signal

amplifiers.

IL350/351/358/359

High Performance Linear Optocoupler

for Optical DAA in Telecommunications

Preliminary Data Sheet

Dimensions in Inches (mm)

Pin One ID

.043 (1.08)

.033 (.83)

.050

(1.25)

Typ.

.230 (5.75)

.220 (5.5)

K1

A2

.225 (5.6) .336 (8.4)

.215 (5.4) ±.010 (±.25) K 3

A4

8K

7A

6 N.C

5 N.C

.015 (.375)

±.002 (±.050)

.091 (2.3)

.083 (2.1)

.042 (1.05)

Ref.

.291 (7.39)

±010 (.254)

.015 (.375)

±.002 (.050)

40°

3°–7°

.016

(.41)

Typ.

.006 (.15)

Typ.

10° Typ.

Absolute Maximum Ratings

Maximum Ratings

Emitter

Reverse Voltage..........................................................................................3.0 V

Forward Current ...................................................................................... 30 mA

Surge Current, Pulse Width <10 µs ....................................................... 150 mA

Power Dissipation, TA=25°C .................................................................150 mW

Derate Linearly from 25°C .................................................................2.0 mW/°C

Detector

Reverse Voltage ..........................................................................................15 V

Power Dissipation ....................................................................................50 mW

Derate Linearly from 25°C ...............................................................0.65 mW/°C

Junction Temperature ...............................................................................100°C

Coupler

Isolation Test Voltage, t=1.0 sec. ..................................................... 3000 VRMS

Total Package Power Dissipation .........................................................250 mW

Derate Linearly from 25°C .................................................................2.8 mW/°C

Storage Temperature Range....................................................–40°C to +150°C

Operating Temperature...............................................................................75°C

Lead Soldering Time at 260°C ............................................................... 10 sec.

Isolation Resistance

VIO=500 V, TA=25°C ...........................................................................≥1012 Ω

VIO=500 V, TA=100°C .........................................................................≥1011 Ω

Infineon Technologies, Corp. • Optoelectronics Division • Cupertino, CA (formerly Siemens Microelectronics, Inc.)

www.infineon.com/opto • 1-800-777-4363

1

April 29. 1999

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