LOW INPUT CURRENT
HIGH GAIN SPLIT
DARLINGTON OPTOCOUPLERS
SINGLE-CHANNEL
6N138
6N139
DESCRIPTION
The 6N138/9 and HCPL-2730/HCPL-2731 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, HCPL-2730/HCPL2731, 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/µs.
An improved package allows superior insulation permitting a 480 V working voltage
compared to industry standard 220 V.
8
1
DUAL-CHANNEL
HCPL-2730
HCPL-2731
8
1
8
1
FEATURES
•
•
•
•
•
•
•
Low current - 0.5 mA
Superior CTR-2000%
Superior CMR-10 kV/µs
Double working voltage-480V RMS
CTR guaranteed 0-70°C
U.L. recognized (File # E90700)
Dual Channel - HCPL-2730
HCPL-2731
APPLICATIONS
•
•
•
•
•
•
Digital logic ground isolation
Telephone ring detector
EIA-RS-232C line receiver
High common mode noise line receiver
µP bus isolation
Current loop receiver
N/C 1
8 V
CC
+ 1
V
F1
8 V
CC
+ 2
V
F
_
3
7 V
B
_ 2
7 V
01
6 V
O
_
V
F2
3
6 V
02
N/C 4
5 GND
+ 4
5 GND
6N138 / 6N139
HCPL-2730 / HCPL-2731
ABSOLUTE MAXIMUM RATINGS
Parameter
Storage Temperature
Operating Temperature
Lead Solder Temperature
EMITTER
DC/Average Forward Input Current
(No derating required up to 85°C)
Symbol
T
STG
T
OPR
T
SOL
Each Channel
Each Channel
I
F
(avg)
I
F
(pk)
I
F
(trans)
Each Channel
Each Channel
Each Channel
(6N138 and 6N139)
(6N138, HCPL-2730)
(6N139, HCPL-2731)
Each Channel
V
R
P
D
I
O
(avg)
V
EB
V
CC
, V
O
P
D
Value
-55 to +125
-40 to +85
260 for 10 sec
20
40
1.0
5
35
60
0.5
-0.5 to 7
-0.5 to 18
100
Units
°C
°C
°C
mA
mA
A
V
mW
mA
V
V
mW
Peak Forward Input Current (50% duty cycle, 1 ms P.W.)
Peak Transient Input Current - (!"1 µs P.W., 300 pps)
Reverse Input Voltage
Input Power Dissipation
DETECTOR
Average Output Current
Emitter-Base Reverse Voltage
Supply Voltage, Output Voltage
Output power dissipation
12/27/99
200023A