isocom components ltd unit 25b, park view road west, park view industrial estate, brenda road hartlepool, cleveland, ts25 1yd tel: (01429) 863609 fax :(01429) 863581 7/12/00 db91037-aas/a2 6N138, 6n139 high speed optically coupled isolator photodarlington output absolute maximum ratings (25c unless otherwise specified) storage temperature -55c to + 125c operating temperature -40c to + 85c lead soldering temperature (1/16 inch (1.6mm) from case for 10 secs) 260c input diode average forward current 20ma ( 1 ) peak forward current 40ma ( 50% duty cycle, 1ms pulse width ) peak transient current 1.0a (equal to or less than 1 m s p.w., 300 pps) reverse voltage 5v power dissipation 35mw( 2 ) detector output current 60ma( 3 ) emitter-base reverse voltage 5v supply and output voltage 6N138 -0.5 to +7v 6n139 -0.5 to +18v power dissipation 100mw (4 ) approvals l ul recognised, file no. e91231 description these diode-darlington optocouplers use a light emitting diode and an integrated high gain photon detector to provide 2500volts rms electrical isolation between input and output. seperate connection for the photodiode bias and output darlington collector improve the speed up to a hundred times that of a conventional photo-darlington coupler by reducing the base-collector capacitance. features l high speed - dc to 300kbits/s operation l high common mode transient immunity 10kv/ m s typical l ttl compatible - 0.1v v ol typical l base access allows gain bandwidth adjustment l low input current requirement - 0.5ma l high current transfer ratio - 2000% typ. l open collector output l 2500v rms withstand test voltage, 1 min l 6n139 has improved noise shield which gives superior common mode rejection l options :- 10mm lead spread - add g after part no. surface mount - add sm after part no. tape&reel - add smt&r after part no. l all electrical parameters 100% tested l custom electrical selections available applications l line receivers l digital logic ground isolation l telephone ring detector l current loop receiver 0.3 0.5 dimensions in mm 6.9 6.3 1.3 15 max 3.3 4.0 3.6 2.54 9.7 9.1 0.5 1.3 * 6n139 noise shield 7.62 4 3 2 1 8 7 6 5 * option g option sm 10.16 10.2 9.5 0.3 1.2 0.6 1.4 0.9 7.62 surface mount isocom inc 1024 s. greenville ave, suite 240, allen, tx 75002 usa tel: (214) 495-0755 fax: (214) 495-0901 e-mail info@isocom.com http://www.isocom.com
db91037-aas/a2 7/12/00 electrical characteristics ( t a = 0c to 70c unless otherwise noted ) parameter sym device min typ* max units test condition 6n139 400 2000 % i f = 0.5ma,v o = 0.4v v cc = 4.5v 6n139 500 2000 % i f = 1.6ma, v o = 0.4v current transfer ratio ctr v cc = 4.5v (note 5, 6) 6N138 300 2000 % i f = 1.6ma, v o = 0.4v v cc = 4.5v 6n139 0.1 0.4 v i f = 1.6ma, i o = 6.4ma v cc = 4.5v 6n139 0.1 0.4 v i f = 5ma, i o = 15ma logic low output voltage v ol v cc = 4.5v (note 6) 6n139 0.1 0.4 v i f = 12ma, i o = 24ma v cc = 4.5v 6N138 0.1 0.4 v i f = 1.6ma, i o = 4.8ma v cc = 4.5v 6n139 0.1 100 m a i f = 0ma logic high output current i oh v o = v cc = 18v (note 6) 6N138 0.001 250 m a i f = 0ma v o = v cc = 7v logic low supply current i ccl 0.2 ma i f = 1.6ma,v o = open (note 6) v cc = 5v logic high supply current i cch 10 m a i f = 0ma,v o = open (note 6) v cc = 5v input forward voltage v f 1.45 1.7 v i f = 1.6ma, t a = 25c temperature coefficient d v f -1.8 mv/c i f = 1.6ma of forward voltage d t a input reverse voltage v r 5 v i r = 10 m a,t a = 25c ` input capacitance c in 60 pf f = 1mhz, v f = 0 input-output isolation voltage v iso 2500 5000 v rms r.h.equal to or less than 50%, t = 1min. t a = 25c resistance (input to output) r i-o 10 12 w v i-o = 500v dc (note 7) capacitance (input to output) c i-o 0.6 pf f = 1mhz (note 7) * all typicals at t a = 25c
switching specifications at t a = 25 c ( v cc = 5v unless otherwise noted ) parameter sym device min typ max units testcondition propagation delay time 6n139 5.0 25 m s i f = 0.5ma,r l = 4.7k w to logic low at output t phl 6n139 0.2 1 m s i f = 12ma,r l = 270 w ( fig 1 )( note6,8 ) 6N138 1.0 10 m s i f = 1.6ma,r l = 2.2k w propagation delay time 6n139 1.0 60 m s i f = 0.5ma,r l = 4.7k w to logic high at output t plh 6n139 1.0 7 m s i f = 12ma,r l = 270 w ( fig 1 )( note6,8 ) 6N138 4.0 35 m s i f = 1.6ma,r l = 2.2k w common mode transient immunity at logic high cm h 1000 10000 v/ m s i f = 0ma, v cm = 10v pp level output ( fig 2 )( note9 ) r l = 2.2k w common mode transient immunity at logic low cm l -1000 -10000 v/ m s i f = 1.6ma,v cm = 10v pp level output ( fig 2 )( note9 ) r l = 2.2k w notes:- 1. derate linearly above 50 o c free air temperature at a rate of 0.4 ma/c. 2. derate linearly above 50 o c free air temperature at a rate of 0.7 mw/c. 3. derate linearly above 25 o c free air temperature at a rate of 0.7 ma/c. 4. derate linearly above 25 o c free air temperature at a rate of 2.0 mw/c. 5. current transfer ratio is defined as the ratio of output collector current,i o , to the forward led input current, i f times 100%. 6. pin 7 open. 7. device considered a two-terminal device: pins 1,2,3, and 4 shorted together and pins 5,6,7 and 8 shorted together. 8. use of a resistor between pin 5 and 7 will decrease gain and delay time. 9. common mode transient immunity in logic high level is the maximum tolerable (positive) dvcm/dt on the leading edge of the common mode pulse v cm to assure that the output will remain in a logic high state (i.e. v o > 2.0v). common mode transient immunity in logic low level is the maximum tolerable (negative) dvcm/dt on the trailing edge of the common mode pulse signal, v cm to assure that the output will remain in logic low state (i.e. v o < 0.8v). fig.1 switching test circuit 2 i f monitor 0 i f v o 1.5v 100 w 1.5v 5v t phl t plh v ol r l v o c l = 15pf 8 7 6 5 pulse generator z o = 50 w t r = 5ns i f 1 4 3 10% duty cycle 1/f < 100 m s 5v db91037-aas/a2 7/12/00
db91037-aas/a2 7/12/00 fig. 2 test circuit for transient immunity and typical waveforms 1 3 4 + - a pulse gen. v cm 0v v cm i f v ff 5v 5v v ol v o v o switch at a: i f = 0ma switch at b: i f = 1.6ma 10v 10% 90% 10% 90% t r t f b 8 7 6 5 2 r l v o output current i o (ma) output current vs. output voltage 1.0 1.2 1.4 1.6 forward current i f (ma) forward current vs. forward voltage forward voltage v f (v) current transfer ratio vs. forward current current transfer ratio ctr (%) forward current i f (ma) 0.1 1.0 10 100 supply current i ccl (ma) v o = 0.4v v cc = 5v 0 1.0 2.0 output voltage v o (v) supply current vs. forward current 0.01 0.1 0.02 0.04 0.2 0.4 1 2 4 10 t a = 25c t a = 0c t a = -40c t a = 85c 400 200 100 1000 2000 4000 10000 6n139 v cc = 18v 6N138 v cc = 7v v cc = 18v v cc = 7v forward current i f (ma) 0.1 1.0 10 100 0.1 0.2 0.4 1 2 4 10 20 40 100 v cc = 5v t a = 25c i f = 0.5ma / step 0 10 20 30 40 50 60 70 80 90 100
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