DATA SHEET
www.onsemi.com
8-Pin DIP Low Input Current
High Gain Split Darlington
Optocouplers
Single-Channel: 6N138M,
6N139M
Dual-Channel: HCPL2730M,
HCPL2731M
PDIP8 6.6x3.81, 2.54P
CASE 646BW
8
1
PDIP8 9.655x6.6, 2.54P
CASE 646CQ
8
1
Description
The single−channel, 6N138M, 6N139M and dual−channel
HCPL2730M, HCPL2731M optocouplers consist of an AlGaAs LED
optically coupled to a high gain split darlington photodetector.
The split darlington configuration separating the input photodiode
and the first stage gain from the output transistor permits lower output
saturation voltage and higher speed operation than possible with
conventional darlington phototransistor optocoupler. In the dual
channel devices, HCPL2730M and HCPL2731M, an integrated
emitter−base resistor provides superior stability over temperature.
The combination of a very low input current of 0.5 mA and a high
current transfer ratio of 2000% makes this family particularly useful
for input interface to MOS, CMOS, LSTTL and EIA RS232C, while
output compatibility is ensured to CMOS as well as high fan−out TTL
requirements. An internal noise shield provides exceptional common
mode rejection of 10 kV/ms.
Low Current – 0.5 mA
Superior CTR – 2000%
Superior CMR – 10 kV/ms
CTR Guaranteed 0 to 70°C
Dual Channel – HCPL2730M, HCPL2731M
Safety and Regulatory Approvals
UL1577, 5,000 VACRMS for 1 Minute
DIN EN/IEC60747−5−5
These are Pb−Free Devices
October, 2022 − Rev. 2
6N138
VXXYYB
6N138
V
= Device Number
= DIN EN/IEC60747−5−5 Option (only
appears on component ordered with
this option)
= Two−Digit Year Code, e.g., ‘16’
= Two−Digit Work Week, Ranging from
‘01’ to ‘53’
= Assembly Package Code
ORDERING INFORMATION
See detailed ordering and shipping information on page 11 of
this data sheet.
Related Resources
• https://www.onsemi.com/products/interfaces/
Digital Logic Ground Isolation
Telephone Ring Detector
EIA−RS−232C Line Receiver
High Common Mode Noise Line Receiver
mP Bus Isolation
Current Loop Receiver
© Semiconductor Components Industries, LLC, 2009
MARKING DIAGRAM
B
Applications
•
•
•
•
•
•
1
XX
YY
Features
•
•
•
•
•
•
•
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•
PDIP8 GW
CASE 709AC
8
•
•
1
high−performance−optocouplers/high−performance−transistor−optocouplers
https://www.onsemi.com/products/interfaces/
high−performance−optocouplers/high−performance−transistor−optocouplers/hcpl0700
https://www.onsemi.com/products/interfaces/
high−performance−optocouplers/high−performance−transistor−optocouplers/hcpl0731
Publication Order Number:
HCPL2731/D
Single−Channel: 6N138M, 6N139M Dual−Channel: HCPL2730M, HCPL2731M
N/C 1
8 VCC
+ 1
8 VCC
VF1
+ 2
7 VB
_ 2
6 VO
_
7 VO1
VF
_
3
3
6 VO2
VF2
N/C 4
5 GND
+ 4
5 GND
HCPL2730M / HCPL2731M
6N138M / 6N139M
Figure 1. Schematics
SAFETY AND INSULATION RATINGS (As per DIN EN/IEC 60747−5−5, this optocoupler is suitable for “safe electrical insulation”
only within the safety limit data. Compliance with the safety ratings shall be ensured by means of protective circuits.)
Parameter
Characteristics
Installation Classifications per DIN VDE 0110/1.89 Table 1, For Rated
Mains Voltage
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