參數(shù)資料
型號(hào): HCPL-0721
英文描述: 40 ns Propagation Delay,CMOS Optocoupler(40 ns 傳播延遲,CMOS光耦合器)
中文描述: 40納秒的傳播延遲,光耦的CMOS(40納秒的傳播延遲,的CMOS光耦合器)
文件頁數(shù): 13/16頁
文件大?。?/td> 305K
代理商: HCPL-0721
13
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
Figure 18. Isolated Node Powered by the Network.
by the Network (Figure 18),
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
相關(guān)PDF資料
PDF描述
HCPL-0731 Dual Channel Low Input Current, High Gain Optocouplers(雙通道,低輸入電流,高增益光耦器)
HCPL-2730 Dual Channel Low Input Current, High Gain Optocouplers(雙通道,低輸入電流,高增益光耦器)
HCPL-2731 Dual Channel Low Input Current, High Gain Optocouplers(雙通道,低輸入電流,高增益光耦器)
HCPL-073A Very Low Power Consumption High Gain Optocouplers
HCPL-070A Very Low Power Consumption High Gain Optocouplers(極低功率消耗的高增益光耦合器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HCPL-0721#060 功能描述:高速光耦合器 25MBd 1Ch 150mA 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-0721#500 功能描述:高速光耦合器 25MBd 1Ch 150mA 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
HCPL0721#560 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FET-OUTPUT OPTOCOUPLER
HCPL-0721#560 功能描述:高速光耦合器 25MBd 1Ch 150mA 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-0721-000E 功能描述:高速光耦合器 25MBd 1Ch 150mA 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