5? features high current transfer ratio, if=10 ma, vce=5 v il205a, 40?0% IL206A, 63?25% il207a, 100?00% il208a, 160?20% high bv ceo , 70 v isolation test voltage, 2500 vac rms industry standard soic-8 surface mountable package standard lead spacing, .05" available in tape and reel option?uf? ? (conforms to eia standard rs481a) compatible with dual wave, fapor phase and ir re?w soldering underwriters lab file #e52744 (code letter p) description the il205a/206a/207a/208a are optically coupled pairs with a gallium arsenide infrared led and a silicon npn phototransistor. signal information, including a dc level, can be transmitted by the device while maintaining a high degree of electri- cal isolation between input and output. the il205/ 6/7/8 come in a standard soic-8 small outline package for surface mounting which makes them ideally suited for high density applications with lim- ited space. in addition to eliminating through-holes requirements, this package conforms to standards for surface mounted devices. a speci?d minimum and maximum ctr allows a narrow tolerance in the electrical design of the adjacent circuits. the high bv ceo of 70 volts gives a higher safety margin compared to the industry standard 30 volts. maximum ratings emitter peak reverse voltage......................................6.0 v continuous forward current..........................60 ma power dissipation at 25 c ............................90 mw derate linearly from 25 c ......................1.2 mw/ c detector collector-emitter breakdown voltage ...............70 v emitter-collector breakdown voltage .................7 v collector-base breakdown voltage ..................70 v power dissipation ......................................150 mw derate linearly from 25 c ......................2.0 mw/ c package total package dissipation at 25 c ambient (led + detector).....................................240 mw derate linearly from 25 c ......................3.3 mw/ c storage temperature ...................?5 c to +150 c operating temperature ................?5 c to +100 c soldering time at 260 c.............................. 10 sec. characteristics (t a =25 c) sym min. typ. max. unit condition emitter forward voltage v f 1.3 1.5 v i f = 10 ma reverse current i r 0.1 100 m av r =6.0 v capacitance c o 25 pf v r =0 detector breakdown voltage collector-emitter emitter-collector bv ceo bv eco 70 710 v v i c =100 ma i e =100 m a leakage current, collector-emitter i ceo 550na v ce =10 v package dc current transfer il205a IL206A il207a il208a ctr dc 40 63 100 100 80 125 200 320 %i f = 10 ma, v ce =5 v dc current transfer il205a IL206A il207a il208a ctr dc 13 22 34 56 25 40 60 95 %i f = 1 ma, v ce =5 v saturation voltage, collector-emitter v cesat 0.4 i c =2.0 ma, i f =10 ma, isolation test voltage v io 2500 vac rms equivalent dc isolation voltage 3535 vdc capacitance, input to output c io 0.5 pf resistance, input to output r io 100 g w switching time t on , t off 3.0 m si c =2.0 ma, r e =100 w , v ce =10 v dimensions in inches (mm) 40 .240 (6.10) .154 .005 (3.91 .13) .050 (1.27) typ. .016 (.41) .192 .005 (4.88 .13) .004 (.10) .008 (.20) lead coplanarity .0015 (.04) max. .015 .002 (.38 .05) .008 (.20) 7 .058 .005 (1.49 .13) .125 .005 (3.18 .13) pin one id .120 .005 (3.05 .13) c l .021 (.53) 5 max. r.010 (.25) max. .020 .004 (.15 .10) 2 plcs. 1 2 3 4 8 7 6 5 nc base collector emitter anode/ cathode cathode/ anode nc nc il205a/206a/207/208a small outline surface mount phototransistor optocoupler
5? il205a/206a/207a/208a figure 1. forward voltage versus forward current figure 2. normalized non-saturated and saturated ctrce versus led current figure 3. collector-emitter current versus led current figure 4. normalized collector-base photocurrent ver- sus led current 100 10 1 .1 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 if - forward current - ma vf - forward voltage - v ta = -55 c ta = 25 c ta = 85 c .1 1 10 100 0.0 0.5 1.0 1.5 vce = 5 v vce = 0.4 v if - led current - ma nctrce - normalized ctrce normalized to: vce = 10 v if = 10 ma ta = 25 c .1 1 10 100 0 50 100 150 vce = 0.4 v vce = 10 v if - led current - ma ice - collector-emitter current - ma ta = 25 c .1110100 .1 1 10 100 if - led current - ma nicb - normalized icb normalized to: vcb = 9.3 v if = 1 ma ta = 25 c figure 5. normalized collector-base photocurrent ver- sus led current figure 6. collector-emitter photocurrent versus led current figure 7. collector-emitter photocurrent versus led current figure 8. base current versus if and hfe .1 1 10 100 .01 .1 1 10 normalized to: vcb = 9.3 v if = 10 ma ta = 25 c if - led current - ma nicb - normalized icb .1110100 .1 1 10 100 10 00 if - led current - ma icb - collector-base current - m a ta = 25 c vcb = 9.3 v 100 80 60 40 20 0 -20 10 10 10 10 10 10 10 10 -2 -1 0 1 2 3 4 5 ta - ambient temperature - c iceo - collector-emitter - na typical vce = 10v 1 10 100 1000 0.0 0.5 1.0 1.5 2.0 25 c 50 c 70 c ib - base current - m a nhfe(sat) - normalized saturated hfe normalized to: ib = 20 m a vce = 10 v ta = 25 c vce = 0.4 v
5? il205a/206a/207a/208a figure 10. typical switching times versus load resis- tance 1000 500 100 50 10 5 1 0.1 0.5 1 5 10 50 100 input: i f =10 ma pulse width=100 ms duty cycle=50% t off t on load resistance r l (k w ) switching time ( m s) figure 9. typical switching characteristics versus base resistance (saturated operation) 100 50 10 5 1.0 input: i f =10ma pulse width=100 ms duty cycle=50% base-emitter resistance, r be ( w ) t off t on switching time ( m s) 10k 50k 100k 500k 1m
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