1-108
H
Dual Channel Low Input
Current, High Gain
Optocouplers
Technical Data
Features
• High Current Transfer Ratio
– 1800% Typical
• Low Input Current
Requirements – 0.5 mA
• Low Output Saturation
Voltage – 0.1 V
• High Density Packaging
• Performance Guaranteed
over Temperature
0°Cto70°C
• LSTTL Compatible
• High Output Current –
60 mA
• Safety Approval
UL Recognized - 2500 V rms
for 1 Minute and
5000 V rms* for 1 minute
CSA Approved
• Available in 8 Pin DIP and
SO-8 Footprint
• MIL-STD-1772 Version
Available (HCPL-5730/5731)
• Surface Mount Gull Wing
Option Available for 8-Pin
DIP (Option 300)
Applications
• Digital Logic Ground
Isolation
• Telephone Ring Detector
• Level Shifting
• EIA RS-232C Line Receiver
• Polarity Sensing
• Low Input Current Line
Receiver - Long Line or Party
Line
• Microprocessor Bus
Isolation
• Current Loop Receiver
• Line Voltage Status Indicator
-Low Input Power
Dissipation
HCPL-2730 HCPL-0730
HCPL-2731 HCPL-0731
Description
These dual channel optocouplers
contain a separated pair of GaAsP
light emitting diodes optically
coupled to a pair of integrated
high gain photo detectors. They
provide extremely high current
transfer ratio and excellent inputoutput common mode transient
immunity. A separate pin for the
photodiodes and first gain stages
(VCC) permits lower output saturation voltage and higher speed
operation than possible with
conventional photodarlington
type optocouplers. In addition,
VCC may be as low as 1.6 V
Functional Diagram
CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to
prevent damage and/or degradation which may be induced by ESD.
*5000 V rms/1 minute withstand voltage rating is for Option 020 (HCPL-2730, HCLP-2731) products only.
A 0.1 µF bypass capacitor connected between pins 5 and 8 is recommended.
V
O2
V
O1
V
CC
GND
ANODE
1
CATHODE
1
CATHODE
2
ANODE
2
7
5
6
8
2
3
4
1
TRUTH TABLE
LED
ON
OFF
V
O
LOW
HIGH
5965-3597E