Very Low Power Consumption
High Gain Optocouplers
Technical Data
HCPL-4701
HCPL-4731
HCPL-070A
HCPL-073A
Features
Applications
• Ultra Low Input Current
Capability - 40 µA
• Specified for 3 V Operation
Typical Power Consumption:
<1 mW
Input Power: <50 µW
Output Power: <500 µW
• Will Operate with VCC as
Low as 1.6 V
• High Current Transfer
Ratio – 3500% at IF = 40 µA
• TTL and CMOS Compatible
Output
• Specified AC and DC
Performance over
Temperature: 0°C to 70°C
• Safety Approval
UL Recognized - 3750 V rms
for 1 Minute and
5000 V rms* for 1 minute per
UL1577
CSA Approved
IEC/EN/DIN EN 60747-5-2
Approved with
VIORM = 630 V peak
(Option 060) for HCPL-4701
• 8-Pin Product Compatible
with 6N138/6N139 and
HCPL-2730/HCPL-2731
• Available in 8-Pin DIP and
SOIC-8 Footprint
• Through Hole and Surface
Mount Assembly Available
• Battery Operated
Applications
• ISDN Telephone Interface
• Ground Isolation between
Logic Families – TTL,
LSTTL, CMOS, HCMOS,
HL-CMOS, LV-HCMOS
• Low Input Current Line
Receiver
• EIA RS-232C Line Receiver
• Telephone Ring Detector
• AC Line Voltage Status
Indicator - Low Input Power
Dissipation
• Low Power Systems –
Ground Isolation
• Portable System I/O
Interface
Functional Diagram
HCPL-4731/073A
HCPL-4701/070A
NC 1
8 VCC
ANODE 1 1
8 VCC
ANODE 2
7 VB
CATHODE 1 2
7 VO1
CATHODE 3
6 VO
CATHODE 2 3
6 VO2
NC 4
5 GND
ANODE 2 4
5 GND
TRUTH TABLE
VO
LED
LOW
ON
HIGH
OFF
*5000 V rms/1 Minute rating is for Option 020 (HCPL-4701 and HCPL-4731) products only.
A 0.1 µF bypass capacitor connected between pins 8 and 5 is recommended.
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.
