- 1 - letex technology corp. photocoupler part name: LA213 features ? sop package 4 pin type in miniature design ? 600% minimum current transfer ratio ? 1500v rms input/output isolation applications ? telephones ? programmable controllers ? system appliances, measuring instruments. ? sign al transmission between circuits of different potentials and impedances. 1. led anode 2. led cathode 3. emitter 4. collector 16 a 2 1 letex LA213 3 4 1 2 3 4 dimensions (unit: mm inch )
- 2 - letex technology corp. photocoupler part name: LA213 absolute maximum ratings (ambient temperature: 25 ) item symbol rating units note forward current i f 50 ma reverse voltage v r 5 v input peak forward current i fp 1 a collector to emitter voltage vceo 35 v ic=1ma, i b =0 emitter to collector voltage veco 6 v i e =100a, i b =0 collector curre nt ic 80 ma output power dissipation pc 150 mw i/o breakdown voltage v i/o 1500 vrms rh=60%, 1min power dissipation p d 200 mw storage temperature tstg - 55 to +125 operating temperature top - 55 to +100 soldering temperature t sol 260 10 sec onds max . electrical specifications (ambient temperature: 25 ) item symbol min. typ. max. units conditions forward voltage v f 1.2 1.4 v i f = 20ma reverse current i r 10 a input junction capacitance ct 30 pf v=0, f=1.0khz c - e breakdown vo ltage vceo 35 v ic=0.5ma e - c breakdown voltage veco 6 v ie=0.1ma output collector dark current iceo 100 na vce=20v, i f =0 current transfer ratio ctr 600 1600 7000 i f = 1ma, vce=5v collector saturation voltage vce(sat) 1 v i f = 2 0ma, ic=1ma isolation resistance r i/o 10 9 v=500v dc isolation capacitance c i/o 1.0 pf v=0, f=1.0mhz rise time t r 300 s vce=5v, ic=2ma, coupled fall time t f 250 s rl=100
- 3 - letex technology corp. photocoupler reference data 10 0.2 0 0 collector-emitter satureation voltage (v) 0.4 0.6 0.8 forward current (ma) 20 30 40 50 60 collector-emitter saturation voltage vs. forward current 1.0 1.2 test circuit for resopnse time forward current (ma) forward voltage (v) -25 0 forward current vs. forward voltage ambient temperature ( ) 75 50 -25 0 ambient temperature ( ) 75 50 100 forward current vs. ambient temperature forward current (ma) 10 20 30 40 50 60 collector power dissipation vs. ambient temperature 150 collector power dissipation (mw) 50 100 0 25 100 125 0 25 125 peak forward current vs. duty ratio duty ratio peak forward current ( ma ) 10 20 50 100 200 500 1000 2000 5 10 2 5 5 2 5 2 -3 -2 10 -1 10 0 10 3.0 2.5 1.0 0.5 1.5 2.0 1 10 50 200 0 pulse width 100us ta = 25 2 5 100 500 20 25 0 25 50 ta = 75 ctr ( %) forward current (ma) 1 1 current transfer ratio vs. forward current 2 5 10 20 50 20 40 60 80 100 120 140 160 180 200 vce = 5v ta = 25 0 0 collector current (ma) collector-emitter voltage (v) collector current vs. collector-emitter voltage ta = 25 1 2 3 4 5 6 7 8 9 5 10 15 20 25 30 i f = 30ma 20ma 10ma 5ma pc(max) relative ctr ( %) ambient temperature ( ) -25 0 0 25 100 50 75 relative ctr vs. ambient temperature 50 100 150 i f = 5ma vce = 5v collector-emitter saturation voltage (v) ambient temperature ( ) -25 0 0 25 100 50 75 collector-emitter saturation voltage vs. ambient temperature i f = 20ma ic = 1ma 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 vce = 20v collector dark current vs. ambient temperature collector dark current (a) ambient temperature ( ) -11 10 -10 10 -9 10 -8 10 -7 10 -6 10 -5 10 0 25 50 75 100 -25 7ma 5ma 3ma 1ma ic=0.5ma ta = 25 response time ( s) load resistance (k ) 0.1 response time vs. load resistance vce = 2v ic = 2ma ta = 25 0.1 0.2 0.5 1 2 5 10 0.2 0.5 1 2 5 10 20 50 100 200 500 vcc r l output r d input 10 % input output 90 %
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