Avago Technologies ACPL-224-500E - Manual (Page 28)

AV02-4387EN 25 Avago Technologies
Description
DeviceNet, a factory floor com-
munication network standard,
sometimes may require connect ing
devices to be electrically isolated.
The HCPL-0720 high speed CMOS
optocoupler with a 40 ns maximum
propagation delay time meets the
DeviceNet physical layer specifica-
tion.
Performance of Circuit
• Typical data rate (NRZ): Up to 12
Mbit/s
• Compatible with 5 V CMOS and
TTL logic gates
• Minimum common mode tran-
sient immunity: 10 kV/ µsec at V
CM
= 1000 V
Benefits
• Direct interface to the optoisola-
tor input and output (No external
resistors necessary)
• Speed optimized for Profibus, RS­
485, DeviceNet/CAN
• Small outline surface mount
package offers space/footprint
saving
• Performance guaranteed over
industrial temperature range (0 to
85°C)
Alternative Avago Parts:
1) HCPL-7721/7720/7710 High
Speed CMOS Optocoupler
2) HCPL-0721/0720/0710 SO-8 High
Speed CMOS Optocoupler
Isolated Device Net/CAN Communication Interface
Data Communications Applications
8
5 V
7
1
2
2
3
4
6
5
SHIELD
HCPL-0720
R X
1
1
5 V
2
2
8
7
6
5
3
4
SHIELD
HCPL-0720
0.1 µF
5 V
5 V
5 V
T X
R 1
1M Ω
D 1
30 V
REGULATOR
C 1
0.01 µF
7
V REF
82C250
3
6
5
4
CANH
TXD
1 V-
3 SHIELD
2 CAN-
4 CAN+
5 V+
RS
CANL
REF
RXD
500 V
2
C 4
0.01
µF
GND
V CC
1
+
8
2
0.1 µF
5 V
0.1 µF
0.1 µF
1
2
+ +
2