HCPL-2730/0730/2731/0731
Dual Channel Low Input Current, High Gain Optocouplers
Data Sheet
Lead (Pb) Free
RoHS 6 fully
compliant
RoHS 6 fully compliant options available;
-xxxE denotes a lead-free product
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 excel-
lent input-output 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 photo
darlington type optocouplers. In addition, VCC may be as
low as 1.6 V without adversely affecting the parametric
performance.
These dual channel optocouplers are available in an 8-
Pin DIP and in an industry standard SO-8 package. The
following is a cross reference table listing the 8-Pin DIP
part number and the electrically equivalent SOIC-8 part
number.
8-Pin DIP
HCPL-2730
HCPL-2731
SO-8
HCPL-0730
HCPL-0731
The SO-8 does not require “through holes” in a PCB. This
package occupies approximately one-third the footprint
area of the standard dual-in-line package. The lead profile
is designed to be compatible with standard surface mount
processes.
Functional Diagram
ANODE 1 1
CATHODE 1 2
CATHODE 2 3
8 VCC
7 VO1
6 VO2
TRUTH TABLE
LED
VO
ON
LOW
OFF HIGH
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°C to 70°C
• LSTTL compatible
• High output current – 60 mA
• Safety approval:
UL recognized – 3750 V rms for 1 minute and
5000 V rms* for 1 minute
CSA approved
• Available in 8 pin DIP and SO-8 footprint
• MIL-PRF-38534 hermetic 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 dissipa-
tion
*5000 V rms/1 minute withstand voltage rating is for Option 020
(HCPL-2730, HCLP-2731) products only.
ANODE 2 4
5 GND
A 0.1 µF bypass capacitor connected between pins 5
and 8 is recommended.
CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to prevent damage
and/or degradatioHnCwPLh-2ic73h0mFuanyctbioenailnDdiaugcraemd by ESD.