IL55B PHOTODARLINGTON OPTOCOUPLER FEATURES • High Collector-Emitter Breakdown Voltage— 80 V minimum • High Isolation Resistance, 1011 W Typical • Standard Plastic DIP Package • Underwriters Lab File #E52744 V D E • VDE 0884 Available with Option 1 Package Dimensions in Inches (mm) Pin One ID. 3 1 .248 (6.30) .256 (6.50) 4 5 Anode 1 6 Base Cathode 2 5 Collector NC 3 4 Emitter 6 .335 (8.50) .343 (8.70) DESCRIPTION The IL55B is an optically coupled isolator with a Gallium Arsenide infrared LED and a silicon photodarlington sensor. Switching can be achieved while maintaining a high degree of isolation between driving and load circuits. These optocouplers can be used to replace reed and mercury relays with advantages of long life, high speed switching and elimination of magnetic fields. 2 .300 (7.62) typ. .039 (1.00) min. 4° typ. .018 (0.45) .022 (0.55) .130 (3.30) .150 (3.81) 18° typ. .020 (.051) min. .010 (.25) .014 (.35) .031 (0.80) .035 (0.90) .300 (7.62) .347 (8.82) .100 (2.54) typ. Maximum Ratings Emitter Peak Reverse Voltage ............................................. 3 V Continuous Forward Current .............................. 60 mA Power Dissipation at 25°C............................... 100 mW Derate Linearly from 55°C ......................... 1.33 mW/°C Detector Collector-Emitter Breakdown Voltage, BVCEO ....... 80 V Emitter-Collector Breakdown Voltage BVECO .......... 5 V Collector (load) Current.................................... 125 mA Power Dissipation at 25°C Ambient ................ 150 mW Derate Linearly from 25°C ........................... 2.0 mW/°C Package Total Dissipation at 25°C Ambient .................. 250 mW Derate Linearly from 25°C ........................... 3.3 mW/°C Isolation Test Voltage (between emitter and detector refered to standard climate 23°C/50%RH, DIN 50014) ......................................... 5300 VACRMS Creepage ................................................... 7 mm min. Clearance.................................................... 7 mm min. Tracking Resitance, Group III (KC>600 per VDE 110 § 6,Table 3 and DIN 53480/VDE 0330, Part 1 Isolation Resistance VIO=500 V, TA=25°C .......................................1012 Ω VIO=500 V, TA=100°C .....................................1011 Ω Storage Temperature ........................ –55°C to +150°C Operating Temperature .................... –55°C to +100°C Lead Soldering Time at 260°C ......................... 10 sec. .110 (2.79) .150 (3.81) Electrical Characteristics (TA=25°C) Parameter Min. Typ. Max. Unit Condition Forward Voltage* 1.25 1.5 V IF=50 mA Reverse Current* 0.1 10 µA VR=3.0 V Capacitance 25 pF VR=0 V V IC=1 mA, IF=0 V IE=100 µA, IF=0 µA VCE=60 V, IF=0 % IF=10 mA VCE =1.5 V Emitter Detector BVCEO 80 BVECO 5 10 ICEO 1 Package Current Transfer Ratio 500 Coupling Capacitance 1.5 pF Turn-On Time 5 µs VCC=10 V Turn -Off Time 100 µs IF=5 mA RL=100 Ω 5–1 Figure 1. Forward voltage versus forward current Figure 5. High to low propagation delay verus collector load resistance and LED current 1.3 Ta = -55°C tpHL - High/Low Propagation delay - µs VF - Forward Voltage - V 1.4 1.2 Ta = 25°C 1.1 1.0 0.9 Ta = 85°C 0.8 0.7 .1 1 10 IF - Forward Current - mA 100 NCTRce - Normalized CTR 1.0 0.8 Normalized to: Vce = 5 V IF = 10 mA Ta = 25 °C Ta = 25°C Vcc = 5 V Vth = 1.5 V 10 100Ω 5 0 5 10 15 IF - LED Current - mA 20 Figure 6. Switching waveforms IF Vce = 5V 0.6 0.4 tD 0.2 Vce =1V 0.0 .1 1 10 100 IF - LED Current - mA 1000 10 Normalized to: Ta = 25°C IF = 10 mA 1 Vce = 5 V tPLH tR V0 VTH=1.5 V Figure 3. Normalized non-saturated and saturated collector-emitter current versus LED current NIce - Normalized Ice 1KΩ 15 0 Figure 2. Normalized non-saturated and saturated CTRce at TA=25°C versus LED current 1.2 20 tPHL tS Vce = 5 V tF Figure 7. Switching schematic Vce = 1V VCC=13.5 V .1 F=10 KHz, DF=50% .01 RC VO .001 .1 100 1 10 IF - LED Current - mA IF=50 mA tpLH - Low/High Propagation Delay - µs Figure 4. Low to high propagation delay versus collector load resistance and LED current 80 Ta = 25°C, Vcc = 5V Vth = 1.5 V 1KΩ 60 220Ω 40 470Ω 20 100Ω 0 0 5 10 15 IF - LED Current - mA 20 5–2 IL55B