Qdatasheet_Logo
Integrated circuits, Transistor, Semiconductors Search and Datasheet PDF Download Site

HCPL-7710-000E View Datasheet(PDF) - Avago Technologies

Part Name
Description
MFG CO.
HCPL-7710-000E
Avagotech
Avago Technologies Avagotech
'HCPL-7710-000E' PDF : 17 Pages View PDF
Prev 11 12 13 14 15 16 17
Isolated Node Providing Power to the Network
Figure 21 shows a node providing power to the
network. The AC line powers a regulator which provides
5 V locally. The AC line also powers a 24 V isolated
supply, which powers the network, and another 5 V
regulator, which, in turn, powers the transceiver and
isolated (network) side of the two optocouplers. This
method is recommended when there are a limited
number of devices on the network that do not require
much power, thus eliminating the need for separate
power supplies.
More importantly, the unique “dual-inverting” design
of the HCPL-x710 ensure the network will not “lock-up”
if either AC line power to the node is lost or the node
powered-off. Specifically, when input power (VDD1) to
the HCPL-x710 located in the transmit path is eliminat-
ed, a RECESSIVE bus state is ensured as the HCPL‑x710
output voltage (VO) go HIGH.
DEVICENET NODE
NODE/APP SPECIFIC
µP/CAN
HCPL
HCPL
-0710
-0710
TRANSCEIVER
DRAIN/SHIELD
SIGNAL
POWER
Figure 21. Isolated node providing power to the network
AC LINE
5 V REG.
5 V REG.
ISOLATED
SWITCHING
POWER
SUPPLY
GALVANIC
ISOLATION
BOUNDARY
V+ (SIGNAL)
V– (SIGNAL)
V+ (POWER)
V– (POWER)
15
Share Link: GO URL

All Rights Reserved © qdatasheet.com  [ Privacy Policy ] [ Contact Us ]