Data Sheet
HCPL-2730/0730/2731/0731
Dual-Channel Low Input Current, High-Gain
Optocouplers
Overview
These dual-channel optocouplers contain a separated pair
of GaAsP light-emitting diodes optically coupled to a pair of
integrated high-gain photodetectors. They provide
extremely high current transfer ratio and excellent
input-output common mode transient immunity. A separate
pin for the photodiodes and first gain stages (V
CC
) permits
lower output saturation voltage and higher speed operation
than possible with conventional photo-darlington type
optocouplers. In addition, V
CC
may be as low as 1.6V
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
Features
High current transfer ratio – 1800% typical
Low input current requirements – 0.5 mA
Low output saturation voltage – 0.1V
High density packaging
Performance guaranteed over temperature 0°C to 70°C
LSTTL compatible
High output current – 60mA
Safety approval:
– UL recognized – 3750 V rms for 1 minute and
5000 Vrms (see Note) 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)
5000 V rms/1 minute withstand voltage rating is for
Option 020 (HCPL-2730, HCPL-2731) products
only.
NOTE:
The SO-8 does not require “through holes” in a PCB. This
package occupies approxmately one-third the footprint area
of the standard dual-inline package. The lead profile is
designed to be compatible with standard surface mount
processes.
CAUTION!
Take normal static precautions in handling and
assembly of this component to prevent
damage, degradation, or both that may be
induced by ESD. The components featured in
this data sheet are not to be used in military or
aerospace applications or environments.
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
Broadcom
AV02-0546EN
August 25, 2017
HCPL-2730/0730/2731/0731
Data Sheet
Dual-Channel Low Input Current, High-Gain Optocouplers
Functional Diagram
ANODE
1
1
CATHODE
1
2
CATHODE
2
3
ANODE
2
4
8
7
V
CC
V
O1
6 V
O2
5 GND
TRUTH TABLE
LED
V
O
ON
LOW
OFF
HIGH
NOTE:
A 0.1-µF bypass capacitor connected between pins 5 and 8 is recommended.
Guaranteed operation at low input currents and the high current transfer ratio (CTR) reduce the magnitude and effects of
CTR degradation.
The outstanding high temperature performance of this split Darlington-type output amplifier results from the inclusion of an
integrated emitter-base bypass resistor that shunts photodiode and first stage leakage currents to ground.
The HCPL-2731/0731 have a 400% minimum CTR at an input current of only 0.5 mA making it ideal for use in low input
current application, such as MOS, CMOS, and low-power logic interfacing or RS232C data transmission systems. In
addition, the high CTR and high output current capability make this device extremely useful in applications where a high
fanout is required. Compatibility with high-voltage CMOS logic systems is guaranteed by the 18V V
CC
and V
O
specifications
and by testing output high leakage (I
OH
) at 18V.
The HCPL-2730/0730 are specified at an input current of 1.6 mA and have a 7V V
CC
and V
O
rating. The 300% minimum
CTR allows TTL to TTL interfacing at this input current.
Important specifications, such as CTR, leakage current, and output saturation voltage, are guaranteed over the 0°C to 70°C
temperature range to allow trouble-free system operation. Selection for lower input currents down to 250 µA is available upon
request.
Broadcom
AV02-0546EN
2
HCPL-2730/0730/2731/0731
Data Sheet
Dual-Channel Low Input Current, High-Gain Optocouplers
Ordering Information
HCPL-2730, HCPL-2731, HCPL-0730 and HCPL-0731 are UL Recognized with 3750 Vrms for 1 minute per UL1577 and
are approved under CSA Component Acceptance Notice #5, File CA 88324.
Option
Part
Number
RoHS
Compliant
Non-RoHS
Compliant
No option
-300
-500
-020
-320
-520
-060
-360
-560
No option
-500
-060
-560
X
X
X
SO-8
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Surface
Mount
X
X
UL 5000
Vrms/
Tape and 1 Minute
Gull Wing
Reel
Rating
X
X
X
X
X
X
X
X
X
Package
300mil
DIP-8
IEC/EN/DIN EN
60747-5-5
Quantity
50 per tube
50 per tube
1000 per reel
50 per tube
50 per tube
1000 per reel
50 per tube
50 per tube
1000 per reel
100 per tube
1500 per reel
100 per tube
1500 per reel
HCPL-2730 -000E
HCPL-2731 -300E
-500E
-020E
-320E
-520E
-060E
-360E
-560E
HCPL-0730 -000E
HCPL-0731 -500E
-060E
-560E
To order, choose a part number from the part number column and combine with the desired option from the option column
to form an order entry.
Example 1:
HCPL-2730-520E to order product of 300-mil DIP Gull Wing Surface Mount package in Tape and Reel packaging with
UL 5kVrms 1-minute rating in RoHS compliant.
Example 2:
HCPL-2730 to order product of 300-mil DIP package in tube packaging and non-RoHS compliant.
Option data sheets are available. Contact your Broadcom sales representative or authorized distributor for information.
NOTE:
The notation “#XXX” is used for existing products, while (new) products launched since July 15, 2001 and RoHS
compliant option use “-XXXE”.
Broadcom
AV02-0546EN
4
stm32/stm8
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