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參數(shù)資料
| 型號： | AMIS42675ICAA1G |
| 廠商： | ON Semiconductor |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TRANSCEIVER CAN LP HS 8SOIC |
| 標準包裝： | 96 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | CAN |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SOICN |
| 包裝： | 管件 |
AMIS42675
http://onsemi.com
5
FUNCTIONAL DESCRIPTION
Operating Modes
AMIS42675 provides two modes of operation as
illustrated in Table 5. These modes are selectable through
Pin STB.
Table 5. OPERATING MODES
Mode
Pin STB
Pin RXD
Low
High
Normal
Low
Bus Dominant
Bus Recessive
Standby
High
Wakeup Request Detected
No wakeup Request Detected
Normal Mode
In the normal mode, the transceiver is able to
communicate via the bus lines. The signals are transmitted
and received to the CAN controller via the Pins TxD and
RxD. The slopes on the bus lines outputs are optimized to
give extremely low EME.
Standby Mode
In standby mode both the transmitter and receiver are
disabled and a very lowpower differential receiver
monitors the bus lines for CAN bus activity. The bus lines
are terminated to ground and supply current is reduced to a
minimum, typically 10
mA. When a wakeup request is
detected by the lowpower differential receiver, the signal
is first filtered and then verified as a valid wake signal after
a time period of tBUS, the RxD Pin is driven low by the
transceiver to inform the controller of the wakeup request.
Split Circuit
The VSPLIT Pin is operational only in normal mode. In
standby mode this pin is floating. The VSPLIT is connected
as shown in Figure 2 and its purpose is to provide a stabilized
DC voltage of 0.5 x VCC to the bus avoiding possible steps
in the commonmode signal therefore reducing EME. These
unwanted steps could be caused by an unpowered node on
the network with excessive leakage current from the bus that
shifts the recessive voltage from its nominal 0.5 x VCC
voltage.
Wakeup
Once a valid wakeup (dominant state longer than tBUS)
has been received during the standby mode, the RxD Pin is
driven low.
Overtemperature Detection
A thermal protection circuit protects the IC from damage
by switching off the transmitter if the junction temperature
exceeds a value of approximately 160
°C. Because the
transmitter dissipates most of the power, the power
dissipation and temperature of the IC is reduced. All other
IC functions continue to operate. The transmitter offstate
resets when Pin TxD goes high. The thermal protection
circuit is particularly needed when a bus line short circuits.
High Communication Speed Range
The transceiver is primarily intended for industrial
applications. It allows very low baud rates needed for long
bus length applications. But also high speed communication
is possible up to 1 Mbit/s.
Fail Safe Features
A currentlimiting circuit protects the transmitter output
stage from damage caused by accidental short circuit to
either positive or negative supply voltage, although power
dissipation increases during this fault condition.
The Pins CANH and CANL are protected from
automotive electrical transients (according to ISO 7637; see
Figure 3). Pins TxD and STB are pulled high internally
should the input become disconnected. Pins TxD, STB and
RxD will be floating, preventing reverse supply should the
VCC supply be removed.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AMIS42675ICAA1RG | 功能描述:CAN 接口集成電路 HS LOW POWER TRANSCEIVER RoHS:否 制造商:Texas Instruments 類型:Transceivers 工作電源電壓:5 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| AMIS42675ICAAIG | 制造商:ON Semiconductor 功能描述: |
| AMIS42675ICAH2G | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:High Speed Low Power CAN Transceiver for Long Wire Networks |
| AMIS42675ICAH2RG | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:High Speed Low Power CAN Transceiver for Long Wire Networks |
| AMIS-42700 | 制造商:ON Semiconductor 功能描述:DUAL CAN HIGH SPEED TRANSCEIVER (2XAMIS-30660 + LOGIC), SOIC - Tape and Reel |
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