
5–106
FEATURES
Solid state relay and AC input
Optocoupler Package—Single 18 Pin
l/O Isolation, 2500 VRMS
Surface Mountable
Optocoupler
– Bidirectional Current Detection
Solid-state Relay
– Typical RON 25 W
– Load Voltage 400 V
– Load Current 100 mA
– Current Limit Protection
– High Surge Capability
– Linear, AC/DC Operation
– Clean Bounce Free Switching
– Low Power Consumption
– High Reliability Monolithic Receptor
Applications—General Telecom Switching
– On/off Hook Control
– Dial Pulse
– Ring Current Detection
– Loop Current Sensing
DESCRIPTION
The IL329 Telecom switch consists of an optically
coupled solid state relay (SSR) and a bidirectional
input optocoupler. The SSR is ideal for performing
switchhook and dial-pulse switching while the opto-
coupler performs ring detection and loop current
sensing functions. Both the SSR and opto coupler
provide 2500 VRMS of input to ouput isolation.
The SSR is integrated on a monolithic receptor die
using high voltage BCDMOS technology. The SSR
features low ON-resistance, high breakdown volt-
age and current-limit circuitry that protects the relay
from telephone line induced lightning surges.
The optocoupler provides bidirectional current
sensing via two antiparallel GaAs infrared emitting
diodes. The opto channel provides a minimum CTR
of 33% at 6 mA.
The IL329 comes in a 18 pin, plastic surface mount
package.
Absolute Maximum Ratings
Package
Ambient Temperature Range ...............................................–40 to +85
Storage Temperature Range ..............................................–40 to +150
Soldering Temperature (t=10 sec. max.)........................................260
Input/Output Isolation Voltage (t=60 sec. min.)........................2500 V
Total Power Dissipation................................................................500 mW
Isolation Test Voltage (between emitter and detector)........2500 VAC
Isolation Resistance
V
IO
=500 V, T
A
=25
°
C .................................................................
V
IO
=500 V, T
A
=100
°
C ...............................................................
Storage Temperature Range .........................................–55
Ambient Temperature Range ........................................–55
Soldering Temperature (max.
≤
10 sec.,
dip soldering
≥
0.5 mm from case bottom) ..................................260
SSR
LED Continuous Forward Current...................................................50 mA
LED Reverse Voltage (I
R
≤
10
μ
A)..........................................................5 V
DC or Peak AC Load Voltage (I
L
≤
50
Continous DC Load Current..........................................................100 mA
Total Power Dissipation................................................................350 mW
Optocoupler
LED Continuous Forward Current................................................
Collector to Emitter Breakdown Voltage.............................................30 V
Phototransistor Power Dissipation................................................150 mW
°
°
°
C
C
C
RMS
RMS
≥
≥
10
10
12
11
°
°
C
C
°
°
C to +125
C to +100
°
C
μ
A)........................................
±
400 V
±
50 mA
.484 (12.29)
.476 (12.1)
.050
(1.27)
Typ.
.042 (1.07)
.038 (.97)
.301 (7.65)
.281 (7.14)
40
°
10
°
Typ.
All 8 sides
.006
(.15)
.346 (8.79)
.326 (8.3)
.224 (5.7)
.216 (5.5)
.083 (2.1)
.075 (1.9)
.016
(.41)
Typ.
.025 (.635)
.005 (.127)
.047 (1.19)
.037 (.940)
S
N.C
N.C
S'
C
E
N.C
C
A
K
N.C
A/K
K/A
N.C
N.C
N.C
Leads 5 & 14 missing
18
Pin One
I.D.
1 18
Dimensions in Inches (mm)
IL329
OPTICALLY COUPLED TELECOM SWITCH
Preliminary Data Sheet