Datasheet

NC
ANODE
CATHODE
NC
V
CC
V
B
V
O
GND
HCPL-4701/070A
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
7
5
6
8
2
3
4
1
HCPL-4731/073A
Features
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 V
CC
as low as 1.6 V
High current transfer ratio: 3500% at I
F
= 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
V
IORM
= 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
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.
Functional Diagram
*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.
Applications
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
HCPL-4701/-4731/-070A/-073A
Very Low Power Consumption High Gain Optocouplers
Data Sheet

Summary of content (17 pages)