HCPL-7721#500 Avago Technologies US Inc., HCPL-7721#500 Datasheet - Page 14
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HCPL-7721#500
Manufacturer Part Number
HCPL-7721#500
Description
OPTOCOUPLER 25MBD 6NS 8-SMD
Manufacturer
Avago Technologies US Inc.
Datasheet
1.HCPL-0720-000E.pdf
(19 pages)
Specifications of HCPL-7721#500
Package / Case
8-SMD Gull Wing
Voltage - Isolation
3750Vrms
Number Of Channels
1, Unidirectional
Current - Output / Channel
10mA
Data Rate
25MBd
Propagation Delay High - Low @ If
20ns
Input Type
Logic
Output Type
Push-Pull, Totem-Pole
Mounting Type
Surface Mount, Gull Wing
Isolation Voltage
3750 Vrms
Maximum Continuous Output Current
10 mA
Maximum Fall Time
8 ns
Maximum Rise Time
9 ns
Minimum Forward Diode Voltage
3750 Vrms
Output Device
Logic Gate Photo IC
Configuration
1 Channel
Maximum Baud Rate
25 MBps
Maximum Power Dissipation
150 mW
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
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Optical Isolation for Field Bus Networks
To recognize the full benefits of these networks, each
recom mends providing galvanic isolation using Avago
optocouplers. Since network communication is bi-direc-
tional (involving receiving data from and transmitting
data onto the network), two Avago optocouplers are
needed. By providing galvanic isolation, data integrity is
retained via noise reduction and the elimination of false
signals. In addition, the network receives maximum pro-
tection from power system faults and ground loops.
Within an isolated node, such as the DeviceNet Node
shown in Figure 16, some of the node’s components are
referenced to a ground other than V- of the network.
14
DRAIN/SHIELD
Figure 16. Typical DeviceNet Node.
SIGNAL
POWER
NETWORK
SUPPLY
POWER
772x/072x
NODE/APP SPECIFIC
HCPL
TRANSCEIVER
uP/CAN
772x/072x
HCPL
5 V REG.
SUPPLY
LOCAL
NODE
AC LINE
V+ (SIGNAL)
V– (SIGNAL)
V+ (POWER)
V– (POWER)
GALVANIC
ISOLATION
BOUNDARY
These components could include such things as devices
with serial ports, parallel ports, RS232 and RS485 type
ports. As shown in Figure 16, power from the network is
used only for the transceiver and input (network) side of
the optocouplers.
Isolation of nodes connected to any of the three types of
digital field bus networks is best achieved by using the
HCPL-772X/072X optocouplers. For each network, the
HCPL-772X/072X satisify the critical propagation delay
and pulse width distortion require ments over the tem-
perature range of 0°C to +85°C, and power supply volt-
age range of 4.5 V to 5.5 V.