參數(shù)資料
型號： HCPL-7720
英文描述： 40 ns Propagation Delay CMOS Optocoupler
中文描述： 40納秒的傳播延遲的CMOS光電耦合器
文件頁數(shù)： 14/18頁
文件大?。?/td> 437K
代理商： HCPL-7720
14
Implementing DeviceNet and SDS
with the HCPL-772X/072X
With transmission rates up to 1
Mbit/s, both DeviceNet and SDS
are based upon the same
broadcast-oriented, communica-
tions protocol — the Controller
Area Network (CAN). Three types
of isolated nodes are
recommended for use on these
networks: Isolated Node Powered
by the Network (Figure 18),
Figure 18. Isolated node powered by the network.
Isolated Node with Transceiver
Powered by the Network (Figure
19), and Isolated Node Providing
Power to the Network (Figure 20).
Isolated Node Powered by the
Network
This type of node is very flexible
and as can be seen in Figure 18, is
regarded as “isolated” because not
all of its components have the
same ground reference. Yet, all
components are still powered by
the network. This node contains
two regulators: one is isolated and
powers the CAN controller, node-
specific application and isolated
(node) side of the two optocoup-
lers while the other is non-
isolated. The non-isolated
regulator supplies the transceiver
and the non-isolated (network)
half of the two optocouplers.
NODE/APP SPECIFIC
uP/CAN
HCPL
772x/072x
HCPL
772x/072x
TRANSCEIVER
REG.
V+ (SIGNAL)
V
–
(SIGNAL)
V+ (POWER)
V
–
(POWER)
GALVANIC
ISOLATION
BOUNDARY
DRAIN/SHIELD
SIGNAL
POWER
ISOLATED
SWITCHING
POWER
SUPPLY
NETWORK
POWER
SUPPLY
Isolated Node with Transceiver
Powered by the Network
Figure 19 shows a node powered
by both the network and another
source. In this case, the trans-
ceiver and isolated (network) side
of the two optocouplers are
powered by the network. The rest
of the node is powered by the AC
line which is very beneficial when
an application requires a
significant amount of power. This
method is also desirable as it does
not heavily load the network.
More importantly, the unique
“dual-inverting” design of the
HCPL-772X/072X ensure the
network will not “l(fā)ock-up” if
either AC line power to the node
is lost or the node powered-off.
Specifically, when input power
(V
DD1
) to the HCPL-772X/072X
located in the transmit path is
eliminated, a RECESSIVE bus
state is ensured as the
HCPL-772X/072X output voltage
(V
O
) go HIGH.
*Bus V+ Sensing
It is suggested that the Bus V+
sense block shown in Figure 19 be
implemented. A locally powered
相關PDF資料
PDF描述
HCPL-7721 40 ns Propagation Delay CMOS Optocoupler
HCPL-7840 Isolation Amplifier(隔離放大器)
HCPL-7850 Hermetically Sealed Analog Isolation Amplifier(密封模擬隔離放大器)
HCPL-7851 Hermetically Sealed Analog Isolation Amplifier(密封模擬隔離放大器)
HCPL-7870 Isolated 15-bit A/D Converter(隔離15位A/D轉(zhuǎn)換器)
相關代理商/技術參數(shù)
參數(shù)描述
HCPL-7720#060 功能描述:高速光耦合器 1Ch 10mA 600mW RoHS:否 制造商:Avago Technologies 電流傳遞比: 最大波特率: 最大正向二極管電壓:1.75 V 最大反向二極管電壓:5 V 最大功率耗散:40 mW 最大工作溫度:+125 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-5 封裝:Tube
HCPL-7720#300 功能描述:高速光耦合器 1Ch 10mA 600mW RoHS:否 制造商:Avago Technologies 電流傳遞比: 最大波特率: 最大正向二極管電壓:1.75 V 最大反向二極管電壓:5 V 最大功率耗散:40 mW 最大工作溫度:+125 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-5 封裝:Tube
HCPL-7720#360 功能描述:高速光耦合器 1Ch 10mA 600mW RoHS:否 制造商:Avago Technologies 電流傳遞比: 最大波特率: 最大正向二極管電壓:1.75 V 最大反向二極管電壓:5 V 最大功率耗散:40 mW 最大工作溫度:+125 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-5 封裝:Tube
HCPL-7720#500 功能描述:高速光耦合器 1Ch 10mA 600mW RoHS:否 制造商:Avago Technologies 電流傳遞比: 最大波特率: 最大正向二極管電壓:1.75 V 最大反向二極管電壓:5 V 最大功率耗散:40 mW 最大工作溫度:+125 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-5 封裝:Tube
HCPL-7720#560 功能描述:高速光耦合器 1Ch 10mA 600mW RoHS:否 制造商:Avago Technologies 電流傳遞比: 最大波特率: 最大正向二極管電壓:1.75 V 最大反向二極管電壓:5 V 最大功率耗散:40 mW 最大工作溫度:+125 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-5 封裝:Tube
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*