* Pin 3 is the anode of the internal LED and must be left unconnected
for guaranteed data sheet performance. Pin 7 is not connected
internally.
** A 0.1 µF bypass capacitor must be connected between pins 1 and
4, and 5 and 8.
Features
• +5 V CMOS compatibility
• 20 ns maximum prop. delay skew
• High speed: 25 MBd
• 40 ns max. prop. delay
• 10 kV/µs minimum common mode rejection
• –40 to 85°C temperature range
• Safety and regulatory approvals
UL recognized
– 3750 V
rms
for 1 min. per UL 1577
– 5000 V
rms
for 1 min. per UL 1577
(for HCPL-772X option 020)
CSA component acceptance notice #5
IEC/EN/DIN EN 60747-5-5
– V
IORM
= 630 V
peak
for HCPL-772X option 060
– V
IORM
= 567 V
peak
for HCPL-072X option 060
Applications
• Digital eldbus isolation: CC-Link, DeviceNet, Pro-
bus, SDS
• AC plasma display panel level shifting
• Multiplexed data transmission
• Computer peripheral interface
• Microprocessor system interface
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.
HCPL-0720, HCPL-7720, HCPL-0721 and HCPL-7721
40 ns Propagation Delay, CMOS Optocoupler
Data Sheet
TRUTH TABLE
POSITIVE LOGIC
V
I
LED1 V
o
OUTPUT
H OFF H
L ON L
8
7
6
1
3
SHIELD
5
2
4
**V
DD1
V
I
*
GND
1
V
DD2
**
V
O
GND
2
V
I
, INPUT LED1
H
L
OFF
ON
TRUTH TABLE
(POSITIVE LOGIC)
NC*
I
O
LED1
Lead (Pb) Free
RoHS 6 fully
compliant
RoHS 6 fully compliant options available;
-xxxE denotes a lead-free product
Description
Available in either an 8-pin DIP or SO-8 package style
respectively, the HCPL-772X or HCPL-072X optocouplers
utilize the latest CMOS IC technology to achieve out-
standing performance with very low power consump-
tion. The HCPL-772X/072X require only two bypass ca-
pacitors for complete CMOS compatability.
Basic building blocks of the HCPL-772X/072X are a CMOS
LED driver IC, a high speed LED and a CMOS detector
IC. A CMOS logic input signal controls the LED driver IC
which supplies current to the LED. The detector IC incor-
porates an integrated photodiode, a high-speed tran-
simpedance amplier, and a voltage comparator with an
output driver.
Functional Diagram
