6N138
6N139
LOW INPUT CURRENT, HIGH GAIN
OPTOCOUPLER
FEATURES
Dimensions in inches (mm)
• High Current Transfer Ratio, 800%
• Low Input Current, 0.5mA
• High Output Current, 60mA
Pin
One
I.D.
4
3
2
1
8
7
1
2
NC
V
CC
• Isolation Test Voltage, 2500 VAC
RMS
.268 (6.81)
.255 (6.48)
• 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
Anode
V
B
Cathode
6
5
3
4
V
0
5
6
7
8
NC
GND
.390 (9.91)
.379 (9.63)
APPLICATIONS
• Logic Ground Isolation–TTL/TTL, TTL/CMOS,
CMOS/CMOS, CMOS/TTL
.305 typ.
(7.75) typ.
.045 (1.14)
.030 (.76)
.150 (3.81)
• 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
.130 (3.30)
4°
Typ.
10 °
Typ.
.135 (3.43)
.115 (2.92)
.040 (1.02)
.030 (.76 )
.022 (.56)
.018 (.46)
3°–9°
.012 (.30)
.008 (.20)
.100 (2.54) Typ.
• Low Power Systems–Ground Isolation
DESCRIPTION
Maximum Ratings
Reverse Input Voltage ..........................................................................5 V
Supply and Output Voltage, V (pin 8-5), V (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
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 out-
put stage enable TTL compatible saturation volt-
ages with high speed operation. Photodarlington
operation is achieved by tying the V and V ter-
minals together. Access to the base terminal allows
adjustment to the gain bandwidth.
CC
O
CC
O
Output Current I (pin 6).................................................................60 mA
O
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
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.
Isolation Test Voltage ...........................................................2500 VAC
Isolation Resistance
RMS
The 6N139 is best suited for low power logic appli-
cations 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.
12
V =500 V, T =25°C .........................................................................≥10
Ω
IO
A
11
V =500 V, T =100°C.......................................................................≥10
Ω
IO
A
Storage Temperature ......................................................–55°C to +125°C
Operating Temperature ..................................................–55°C to +100°C
Lead Soldering Temperature (t=10 sec.) ........................................260°C
Caution:
Due to the small geometries of this device, it should be
handled with Electrostatic Discharge (ESD) precau-
tions. Proper grounding would prevent damage further
and/or degradation which may be induced by ESD.
5–1
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