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) 1 Leads 5 & 14 missing 18 .224 (5.7) .216 (5.5) .346 (8.79) .326 (8.3) Pin One I.D. 18 S N.C A N.C K N.C N.C S' C C A/K E N.C N.C .484 (12.29) .476 (12.1) .025 (.635) .005 (.127) .047 (1.19) .037 (.940) K/A N.C .301 (7.65) .281 (7.14) 40° .083 (2.1) .075 (1.9) .042 (1.07) .038 (.97) .050 (1.27) Typ. .016 (.41) Typ. .006 (.15) 10° Typ. All 8 sides Absolute Maximum Ratings Package Ambient Temperature Range ............................................... –40 to +85°C Storage Temperature Range .............................................. –40 to +150°C Soldering Temperature (t=10 sec. max.)........................................ 260°C 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=25°C ................................................................. ≥1012 Ω VIO=500 V, TA=100°C ............................................................... ≥1011 Ω Storage Temperature Range ......................................... –55°C to +125°C Ambient Temperature Range ........................................ –55°C to +100°C Soldering Temperature (max. ≤10 sec., dip soldering ≥0.5 mm from case bottom) .................................. 260°C SSR LED Continuous Forward Current ...................................................50 mA LED Reverse Voltage (IR≤10 µA).......................................................... 5 V DC or Peak AC Load Voltage (IL≤50 µA)........................................± 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 5–106 Electrical Characteristics (TA=25°) Parameter Symbol Min. Typ. Max. Unit Test Condition 0.2 0.5 mA IL=100 mA, t=10 ms mA VL=± 350 V SSR LED Forward Current for Switch Turn-on IFon LED Forward Current for Switch Turn-off IFoff 0.001 LED Forward Voltage VF 0.8 1.20 1.45 V IF=1.5 mA ON-Resistance RON 17 2.5 33 W IF=1.5 mA,IL=± 50 mA OFF-Resistance ROFF GΩ IF=0 mA, VL=± 100 V Current Limit Ilimit 5000 210 270 mA IF=1.5 mA, t=5 ms Output Off-state Leakage Current 0.1 200 1 nA µA IF=0 mA, VL=± 100 V IF=0 mA, VL=± 400 V Output Capacitance Pins 15 to 18 55 10 pF pF IF=0 mA, VL=1 V IF=0 mA, VL=50 V 1.0 ms IF=1.5 mA, IL=50 mA ms IF=5.0 mA, IL=50 mA ms IF=1.5 mA, IL=50 V 0.2 ms IF=5.0 mA, IL=50 mA 1.5 V IF=10 mA % IF=6.0 mA, VCE=0.5 V 0.5 V IF=16.0 mA, IC=2 mA Turn-on Time 170 Ton 0.8 Turn-off Time Toff 0.1 Optocoupler LED Forward Voltage VF 0.9 1.25 DC Current Transfer Ratio CTR 33 165 Saturation Voltage VCEsat Dark Current Leakage ICEO 500 nA IF=0 mA, VCE=5 V Trickle Current Leakage ICEO 1 µA IF=5 µA, VCE=5 V .07 SSR Characteristic Curves Figure 1. SSR recommended operating conditions Figure 3. SSR turn-on current versus temperature NIft Normalized turn on current (SSR) Load Current in mA 100 3 mA 80 0.5 mA 60 1 mA 2 mA 40 20 0 -40 -20 0 20 40 60 80 2.5 2.0 1.5 1.0 0.5 20 Ambient Temperature in °C IF Forward current in mA Is-s' SSR current in mA Figure 4. SSR current vs. voltage, typical Figure 2. IF versus VF, typical 120 100 80 85°C 60 40 25°C 20 0 0.6 40 60 80 Ambient temperature in °C 0.8 1.0 1.2 1.4 1.6 VF- Input LED forward Voltage 1.8 300 200 100 0 -100 -200 -300 -4 -2 0 2 4 Vs-s' SSR voltage drop in Volts 5–107 IL329 Figure 9. Saturated current transfer ratio, typical Vcc=5V 1.6 2mA 1.4 1.2 6mA 4mA 1.0 8.5mA 0.8 0 2 4 6 R load in KΩ 8 NIlimit SSR current limit normalized 1.1 Normalized against Ilimit @ 25°C 1.0 0.9 0.8 0.7 0.6 40 60 80 Ambient temperature in °C 100 0.8 0.6 25°C 85°C 0.4 0.2 0.0 .01 .1 1 10 IF- LED Current in mA 1.2 1.0 Vce=5.0 V Normalized at 25°C 0.8 0.6 25°C 85°C 0.4 0.2 0.0 .01 .1 1 10 100 Figure 11. Switching test circuit for SSR channel Rs Vo 2 40 18 Vin 30 100 IF-LED Current in mA Figure 7. IC versus VCE, typical 1KΩ VS If=10 mA 3 15 + _ Ic-Collector Current in mA Vce=0.5 V Normalized at 25°C Figure 10. Non-saturated current transfer ratio, typical Typical Opto Channel Characteristic Curves 20 If=5 mA 10 If=1mA Figure 12. Switching waveform 0 0 1 2 3 4 Vce Collector to emitter voltage 5 1000 Vce=5V IF tR≤1 µs Control Input Figure 8. ICEO leakage current versus temp. Iceo -Leakage Current in nA 1.0 10 Figure 6. SSR current limit versus temperature 20 1.2 NCTR Normalized Current Transfer ratio Ton SSR turn on time in ms 1.8 NCTR Normalized Current Transfer ratio Figure 5. SSR turn on time versus resistive load IF=5µA Switch Output 100 tR≤1 µs IL 90% tON 10% tOFF 10 1 .1 20 IF=0 mA 40 60 80 Ambient Temperature in °C 5–108 IL329