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6N138 6N139
LOW INPUT CURRENT, HIGH GAIN OPTOCOUPLER
FEATURES * High Current Transfer Ratio, 800% * Low Input Current, 0.5mA * High Output Current, 60mA * Isolation Test Voltage, 2500 VACRMS * TTL Compatible Output, VOL=0.1 V * High Common Mode Rejection, 500V/sec. * Adjustable Bandwidth-Access to Base * Standard Molded Dip Plastic Package * Underwriters Lab File #E52744 APPLICATIONS * Logic Ground Isolation-TTL/TTL, TTL/CMOS, CMOS/CMOS, CMOS/TTL * EIA RS 232C Line Receiver * Low Input Current Line Receiver-Long Lines, Party Lines * Telephone Ring Detector * 117 VAC Line Voltage Status Indication-Low Input Power Dissipation * Low Power Systems-Ground Isolation DESCRIPTION High common mode transient immunity and very high current ratio together with 2500 VAC insulation are achieved by coupling an LED with an integrated high gain photo detector in an eight pin dual-in-line package. Separate pins for the photodiode and output stage enable TTL compatible saturation voltages with high speed operation. Photodarlington operation is achieved by tying the VCC and VO terminals together. Access to the base terminal allows adjustment to the gain bandwidth. The 6N138 is ideal for TTL applications since the 300% minimum current transfer ratio with an LED current of 1.6 mA enables operation with one unit load-in and one unit load-out with a 2.2 K pull-up resistor. The 6N139 is best suited for low power logic applications involving CMOS and low power TTL. A 400% current transfer ratio with only 0.5 mA of LED current is guaranteed from 0C to 70C.
Caution: Due to the small geometries of this device, it should be handled with Electrostatic Discharge (ESD) precautions. Proper grounding would prevent damage further and/or degradation which may be induced by ESD.
Dimensions in inches (mm)
4 3 2 1
Pin One I.D.
NC 1 2
8 7 6 5
.305 typ. (7.75) typ.
VCC VB V0 GND
.268 (6.81) .255 (6.48)
Anode
Cathode 3
5 6 7 8
.390 (9.91) .379 (9.63) .045 (1.14) .030 (.76) .150 (3.81) .130 (3.30) 4 Typ. .022 (.56) .018 (.46) .040 (1.02) .030 (.76 ) .100 (2.54) Typ. 10 Typ.
NC 4
.135 (3.43) .115 (2.92)
3-9 .012 (.30) .008 (.20)
Maximum Ratings Reverse Input Voltage ..........................................................................5 V Supply and Output Voltage, VCC (pin 8-5), VO (pin 6-5) 6N138 ................................................................................... -0.5 to 7 V 6N139 ................................................................................. -0.5 to 18 V Emitter-Base Reverse Voltage (pin 5-7) ............................................0.5 V Average Input Current.....................................................................20 mA Peak Input Current (50% Duty Cycle-1 ms pulse width) ................40 mA Peak Transient Input Current (tp1 sec, 300 pps ...........................1.0 A Output Current IO (pin 6) .................................................................60 mA Derate linearly above 25C, free air temperature at 0.7 mA/C Input Power Dissipation .................................................................35 mW Derate linearly above 50%, free air temperature at 0.7 mW/C Output Power Dissipation.............................................................100 mW Derate linearly above 25C, free air temperature at 0.2 mA/C Isolation Test Voltage........................................................... 2500 VACRMS Isolation Resistance VIO=500 V, TA=25C .........................................................................1012 VIO=500 V, TA=100C .......................................................................1011 Storage Temperature......................................................-55C to +125C Operating Temperature ..................................................-55C to +100C Lead Soldering Temperature (t=10 sec.) ........................................260C
5-1
Electro-Optical Characteristics (TA=0C to 70C, TA=25C-Typical, unless otherwise specified)
Parameter Current Transfer Ratio Symbol CTR Device 6N138 6N139 Logic Low Output Voltage VOL 6N138 6N139 6N139 6N139 6N138 IOH ICCL ICCH VF BVR 5 -1.8 CIN I-0 RI-O CI-O 1012 0.6 25 1.0 6N139 Min . 300 400 500 Typ. 1600 1600 2000 0.1 0.1 0.15 0.25 0.1 0.05 0.2 0.001 1.4 0.4 0.4 0.4 0.4 250 100 1.5 10 1.7 Max. Units % % V V Test Conditions IF=1.6 mA, VO=0.4 V, VCC=4.5 V IF=0.5 mA, VO=0.4 V, VCC=4.5 V IF=1.6 mA, VO=0.4 V, VCC=4.5 V IF=1.6 mA, IO=4.8 mA, VCC=4.5 V IF=1.6 mA, IO=8 mA, VCC=4.5 V IF=5 mA, IO=15 mA, VCC=4.5 V IF=12 mA, IO=24 mA, VCC=4.5 V IF=0 mA, VO=VCC=7 V IF=0 mA, VO=VCC=18 V IF=1.6 mA, VO=OPEN, VCC=18 V IF=0 mA, VO=OPEN, VCC=18 V IF=1.6 mA, TA=25C IR=10 A IF=1.6 mA f=1 MHz, VF=0 45% Relative Humidity, TA=25C t=5S, V1-0=3000 VDC VIO=500 VDC f=1 MHz 7 7 7
Note
5.6 5.6 6 6
Logic High Output Current Logic Low Supply Current Logic High Supply Current Input Forward Voltage Input Reverse Breakdown Voltage Temperature Coefficient of Forward Voltage Input Capacitance Input-Output Insulation Leakage Current Resistance (Input-Output) Capacitance (Input-Output)
A A mA A V V mV/C pF A pF
6 6 6 6
Switching Specifications (TA=25C)
Parameter Propagation Delay Time To Logic Low at Output Propagation Delay Time To Logic High at Output Common Mode Transient Immunity at Logic High Level Output Common Mode Transient Immunity at Logic Low Level Ouput Notes 1.Derate linearly above 50C free-air temperature at a rate of 0.4 mA/C. 2.Derate linearly above 50C free-air temperature at a rate of 0.7 mW/C. 3.Derate linearly above 25C free-air temperature at a rate of 0.7 mA/C. 4.Derate linearly above 25C free-air temperature at a rate of 2.0 mW/C. 5.DC current transfer ratio is defined as the ratio of outpput collector current, IO, to the forward LED input current, IF 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.Using 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, VCM, to assure that the output will remain in a logic high state (i.e. VO>2.0 V) 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, VCM, to assure that the output will remain in a logic low state (i.e. VO<0.8 V). 10.In applications where dv/dt may exceed 50,000 V/s (such as state discharge) a series resistor, RCC should be included to protect IC from destructively high surge currents. The recommended value is IV tPLH CMH CML tPHL 6N138 6N139 Symbol Device 6N138 6N139 Min . Typ. 2 6 0.6 2 4 1.5 500 -500 Max. 10 25 1 35 60 7 Units S S S S V/S V/S Test Conditions IF=1.6 mA, RL=2.2 K IF=0.5 mA, RL=4.7 K IF=12 mA, RL=270 IF=1.6 mA, RL=2.2 K IF=0.5 mA, RL=4.7 K IF=12 mA, RL=270 IF=0 mA, RL=2.2 K RCC=0/VCM/=10 Vp-p IF=1.6 mA, RL=2.2 K RCC=0/VCM/=10 Vp-p 6,8 9,10 9,10 6,8
Note
R CC -------------------------------- k 0.15I F ( mA )
5-2
6N139/139

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