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IL329
OPTICALLY COUPLED TELECOM SWITCH
Preliminary Data Sheet 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 optocoupler 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 voltage 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.
Dimensions in Inches (mm)
Leads 5 & 14 missing 18 .224 (5.7) .216 (5.5) .346 (8.79) .326 (8.3)
1 N.C A K N.C C C E N.C 18 S N.C N.C S' A/K K/A N.C N.C
Pin One I.D. .484 (12.29) .476 (12.1)
.025 (.635) .005 (.127) .047 (1.19) .037 (.940) .083 (2.1) .075 (1.9) .042 (1.07) .038 (.97) .050 (1.27) Typ. .016 (.41) Typ.
.301 (7.65) .281 (7.14)
40
.006 (.15)
10 Typ. All 8 sides
Absolute Maximum Ratings Package Ambient Temperature Range ............................................... -40 to +85C Storage Temperature Range .............................................. -40 to +150C Soldering Temperature (t=10 sec. max.)........................................ 260C Input/Output Isolation Voltage (t=60 sec. min.)........................2500 VRMS Total Power Dissipation ................................................................ 500 mW Isolation Test Voltage (between emitter and detector) ........ 2500 VACRMS Isolation Resistance VIO=500 V, TA=25C ................................................................. 1012 VIO=500 V, TA=100C ............................................................... 1011 Storage Temperature Range ......................................... -55C to +125C Ambient Temperature Range ........................................ -55C to +100C Soldering Temperature (max. 10 sec., dip soldering 0.5 mm from case bottom) .................................. 260C SSR LED Continuous Forward Current ...................................................50 mA LED Reverse Voltage (IR10 A).......................................................... 5 V DC or Peak AC Load Voltage (IL50 A)........................................ 400 V Continous DC Load Current ..........................................................100 mA Total Power Dissipation ................................................................ 350 mW Optocoupler LED Continuous Forward Current ................................................ 50 mA Collector to Emitter Breakdown Voltage............................................. 30 V Phototransistor Power Dissipation................................................ 150 mW
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Electrical Characteristics (TA=25)
Parameter SSR LED Forward Current for Switch Turn-on LED Forward Current for Switch Turn-off LED Forward Voltage ON-Resistance OFF-Resistance Current Limit Output Off-state Leakage Current Output Capacitance Pins 15 to 18 Turn-on Time Ton IFon IFoff VF RON ROFF Ilimit 170 0.001 0.8 17 1.20 2.5 5000 210 0.1 55 10 1.0 0.8 Turn-off Time Toff 0.1 0.2 Optocoupler LED Forward Voltage DC Current Transfer Ratio Saturation Voltage Dark Current Leakage Trickle Current Leakage VF CTR VCEsat ICEO ICEO 0.9 33 1.25 165 .07 0.5 500 1 1.5 V % V nA A IF=10 mA IF=6.0 mA, VCE=0.5 V IF=16.0 mA, IC=2 mA IF=0 mA, VCE=5 V IF=5 A, VCE=5 V 270 200 1 1.45 33 0.2 0.5 mA mA V W G mA nA A pF pF ms ms ms ms IL=100 mA, t=10 ms VL= 350 V IF=1.5 mA IF=1.5 mA,IL= 50 mA IF=0 mA, VL= 100 V IF=1.5 mA, t=5 ms IF=0 mA, VL= 100 V IF=0 mA, VL= 400 V IF=0 mA, VL=1 V IF=0 mA, VL=50 V IF=1.5 mA, IL=50 mA IF=5.0 mA, IL=50 mA IF=1.5 mA, IL=50 V IF=5.0 mA, IL=50 mA Symbol Min. Typ. Max. Unit Test Condition
SSR Characteristic Curves Figure 1. SSR recommended operating conditions
100 Load Current in mA 3 mA 80 60 40 20 0 -40 -20 0 20 40 60 80 0.5 mA 1 mA 2 mA
Figure 3. SSR turn-on current versus temperature NIft Normalized turn on current (SSR) 2.5 2.0 1.5 1.0 0.5 20
Ambient Temperature in C
40 60 80 Ambient temperature in C
Figure 2. IF versus VF, typical
IF Forward current in mA 120 100 80 60 40 20 0 0.6 0.8 1.0 1.2 1.4 1.6 VF- Input LED forward Voltage 1.8 25C 85C
Figure 4. SSR current vs. voltage, typical Is-s' SSR current in mA 300 200 100 0 -100 -200 -300 -4 -2 0 2 4 Vs-s' SSR voltage drop in Volts
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IL329
Figure 5. SSR turn on time versus resistive load 1.8 Ton SSR turn on time in ms 1.6 1.4 1.2 6mA 4mA 1.0 8.5mA 0.8 0 2 2mA Vcc=5V
Figure 9. Saturated current transfer ratio, typical NCTR Normalized Current Transfer ratio 1.2 1.0 0.8 0.6 0.4 0.2 0.0 .01 .1 1 10 IF- LED Current in mA 100 25C 85C Vce=0.5 V Normalized at 25C
4 6 R load in K
8
10
Figure 6. SSR current limit versus temperature NIlimit SSR current limit normalized 1.1 Normalized against Ilimit @ 25C 1.0 0.9 0.8 0.7 0.6 20 40 60 80 Ambient temperature in C 100
Figure 10. Non-saturated current transfer ratio, typical NCTR Normalized Current Transfer ratio 1.2 1.0 0.8 0.6 0.4 0.2 0.0 .01 .1 1 10 100 25C 85C Vce=5.0 V Normalized at 25C
IF-LED Current in mA
Typical Opto Channel Characteristic Curves Figure 7. IC versus VCE, typical Ic-Collector Current in mA 40 30 20 If=5 mA 10 If=1mA 0 0 1 2 3 4 Vce Collector to emitter voltage 5
Figure 11. Switching test circuit for SSR channel Rs 2 Vin 18 VS 3 15 + _ 1K Vo
If=10 mA
Figure 12. Switching waveform
tR1 s Control Input Switch Output 90% IF tR1 s IL 10% tOFF
Figure 8. ICEO leakage current versus temp. Iceo -Leakage Current in nA 1000 100 10 1 .1 20 IF=0 mA 40 60 80 Vce=5V IF=5A
tON
Ambient Temperature in C
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IL329

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