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| 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 DE * VDE 0884 Available with Option 1 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. Maximum Ratings Emitter Peak Reverse Voltage ............................................. 3 V Continuous Forward Current .............................. 60 mA Power Dissipation at 25C............................... 100 mW Derate Linearly from 55C ......................... 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 25C Ambient ................ 150 mW Derate Linearly from 25C ........................... 2.0 mW/C Package Total Dissipation at 25C Ambient .................. 250 mW Derate Linearly from 25C ........................... 3.3 mW/C Isolation Test Voltage (between emitter and detector refered to standard climate 23C/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=25C .......................................1012 VIO=500 V, TA=100C .....................................1011 Storage Temperature ........................ -55C to +150C Operating Temperature .................... -55C to +100C Lead Soldering Time at 260C ......................... 10 sec. .039 (1.00) min. 4 typ. .018 (0.45) .022 (0.55) Package Dimensions in Inches (mm) Pin One ID. 3 .248 (6.30) .256 (6.50) 4 5 6 2 1 Anode Cathode NC 1 2 3 6 5 4 Base Collector Emitter .335 (8.50) .343 (8.70) .300 (7.62) typ. .130 (3.30) .150 (3.81) 18 typ. .020 (.051) min. .031 (0.80) .035 (0.90) .100 (2.54) typ. .010 (.25) .014 (.35) .300 (7.62) .347 (8.82) .110 (2.79) .150 (3.81) Electrical Characteristics (TA=25C) Parameter Emitter Min. Typ. Max. Unit Condition Forward Voltage* Reverse Current* 1.25 0.1 1.5 10 V A IF=50 mA VR=3.0 V Capacitance Detector 25 pF VR=0 V BVCEO BVECO ICEO Package Current Transfer Ratio Coupling Capacitance Turn-On Time Turn -Off Time 80 5 10 1 V V IC=1 mA, IF=0 IE=100 A, IF=0 VCE=60 V, IF=0 A 500 1.5 5 100 % pF s s IF=10 mA VCE =1.5 V VCC=10 V IF=5 mA RL=100 5-1 Figure 1. Forward voltage versus forward current 1.4 VF - Forward Voltage - V Figure 5. High to low propagation delay verus collector load resistance and LED current tpHL - High/Low Propagation delay - s 20 1K 15 Ta = 25C Vcc = 5 V Vth = 1.5 V 1.3 1.2 1.1 1.0 0.9 0.8 0.7 .1 Ta = -55C Ta = 25C 10 5 0 0 5 10 15 IF - LED Current - mA 20 100 Ta = 85C 1 10 IF - Forward Current - mA 100 Figure 2. Normalized non-saturated and saturated CTRce at TA=25C versus LED current 1.2 Figure 6. Switching waveforms IF NCTRce - Normalized CTR 1.0 0.8 0.6 0.4 0.2 0.0 .1 Normalized to: Vce = 5 V IF = 10 mA Ta = 25 C Vce = 5V tD Vce =1V 1 10 100 IF - LED Current - mA 1000 V0 tR tPLH Figure 3. Normalized non-saturated and saturated collector-emitter current versus LED current 10 Normalized to: Ta = 25C IF = 10 mA 1 Vce = 5 V .1 .01 .001 .1 Vce = 5 V VTH=1.5 V tPHL tS tF NIce - Normalized Ice Figure 7. Switching schematic Vce = 1V VCC=13.5 V F=10 KHz, DF=50% RC VO 1 10 IF - LED Current - mA 100 IF=50 mA Figure 4. Low to high propagation delay versus collector load resistance and LED current tpLH - Low/High Propagation Delay - s 80 Ta = 25C, Vcc = 5V Vth = 1.5 V 60 1K 220 40 470 20 100 0 0 5 10 15 IF - LED Current - mA 20 5-2 IL55B |
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