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/µsec. • 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 KΩ 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 0°C to 70°C. 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. .268 (6.81) .255 (6.48) NC 1 8 VCC 2 7 VB Cathode 3 6 V0 NC 4 5 GND Anode 5 6 7 8 .390 (9.91) .379 (9.63) .305 typ. (7.75) typ. .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. .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 (tp≤1 µsec, 300 pps ...........................1.0 A Output Current IO (pin 6) .................................................................60 mA Derate linearly above 25°C, 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 25°C, free air temperature at 0.2 mA/°C Isolation Test Voltage........................................................... 2500 VACRMS Isolation Resistance VIO=500 V, TA=25°C .........................................................................≥1012 Ω VIO=500 V, TA=100°C .......................................................................≥1011 Ω Storage Temperature......................................................–55°C to +125°C Operating Temperature ..................................................–55°C to +100°C Lead Soldering Temperature (t=10 sec.) ........................................260°C 5–1 Electro-Optical Characteristics (TA=0°C to 70°C, TA=25°C–Typical, unless otherwise specified) Units Test Conditions Note 1600 % IF=1.6 mA, VO=0.4 V, VCC=4.5 V 5.6 1600 2000 % IF=0.5 mA, VO=0.4 V, VCC=4.5 V IF=1.6 mA, VO=0.4 V, VCC=4.5 V 5.6 Parameter Symbol Device Min . Typ. Current Transfer Ratio CTR 6N138 300 6N139 400 500 Logic Low Output Voltage VOL Logic High Max. 6N138 0.1 0.4 V IF=1.6 mA, IO=4.8 mA, VCC=4.5 V 6 6N139 6N139 6N139 0.1 0.15 0.25 0.4 0.4 0.4 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 6 6N138 0.1 250 µA IF=0 mA, VO=VCC=7 V 6 6N139 0.05 100 µA IF=0 mA, VO=VCC=18 V 6 Output Current IOH Logic Low Supply Current ICCL 0.2 1.5 mA IF=1.6 mA, VO=OPEN, VCC=18 V 6 Logic High Supply Current ICCH 0.001 10 µA IF=0 mA, VO=OPEN, VCC=18 V 6 Input Forward Voltage VF 1.4 1.7 V IF=1.6 mA, TA=25°C Input Reverse Breakdown Voltage BVR V IR=10 µA -1.8 mV/°C IF=1.6 mA 25 pF f=1 MHz, VF=0 µA 45% Relative Humidity, TA=25°C t=5S, V1-0=3000 VDC 7 5 Temperature Coefficient of Forward Voltage Input Capacitance CIN Input-Output Insulation Leakage Current I-0 Resistance (Input-Output) RI-O 1012 Ω VIO=500 VDC 7 Capacitance (Input-Output) CI-O 0.6 pF f=1 MHz 7 1.0 Switching Specifications (TA=25°C) Parameter Symbol Propagation Delay Time To Logic Low at Output Device Min . Typ. Max. Units Test Conditions 6N138 2 10 µS IF=1.6 mA, RL=2.2 KΩ 6N139 6 0.6 25 1 µS IF=0.5 mA, RL=4.7 KΩ IF=12 mA, RL=270 Ω 6N138 2 35 µS IF=1.6 mA, RL=2.2 KΩ 6N139 60 7 µS IF=0.5 mA, RL=4.7 KΩ IF=12 mA, RL=270 Ω tPHL Propagation Delay Time Note 6,8 To Logic High at Output tPLH 4 1.5 Common Mode Transient Immunity at Logic High Level Output CMH 500 V/µS IF=0 mA, RL=2.2 KΩ RCC=0/VCM/=10 Vp-p 9,10 Common Mode Transient Immunity at Logic Low Level Ouput CML –500 V/µS IF=1.6 mA, RL=2.2 KΩ RCC=0/VCM/=10 Vp-p 9,10 6,8 Notes 1.Derate linearly above 50°C free-air temperature at a rate of 0.4 mA/°C. 2.Derate linearly above 50°C free-air temperature at a rate of 0.7 mW/°C. 3.Derate linearly above 25°C free-air temperature at a rate of 0.7 mA/°C. 4.Derate linearly above 25°C 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/µs (such as state discharge) a series resistor, RCC should be included to protect IC from destructively high surge currents. The recommended value is IV R CC ≅ ---------------------------------kΩ 0.15I F ( mA ) 6N139/139 5–2