0ICAH-002-XTD

更新时间： 2024-01-10 19:43:00

品牌	Logo	应用领域
AMI		网络接口电信集成电路电信电路光电二极管
页数	文件大小	规格书
12页	626K
描述
High-Speed CAN Transceiver

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技术参数
数据手册

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0ICAH-002-XTD 技术参数

是否Rohs认证：	符合	生命周期：	Transferred
包装说明：	0.150 INCH, GREEN, PLASTIC, SOIC-8	Reach Compliance Code：	unknown
风险等级：	5.81	Is Samacsys：	N
JESD-30 代码：	R-PDSO-G8	JESD-609代码：	e3/e4
长度：	4.9 mm	功能数量：	1
端子数量：	8	最高工作温度：	125 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	260
认证状态：	Not Qualified	座面最大高度：	1.72 mm
标称供电电压：	5 V	表面贴装：	YES
电信集成电路类型：	INTERFACE CIRCUIT	温度等级：	AUTOMOTIVE
端子面层：	MATTE TIN/NICKEL PALLADIUM GOLD	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	40	宽度：	3.9 mm
Base Number Matches：	1

0ICAH-002-XTD 数据手册

AMIS-42670 High-Speed CAN Transceiver

Data Sheet

For Long Networks

7.0 Functional Description

7.1 Operating Modes

The behavior of AMIS-42670 under various conditions is illustrated in Table 3 below. In case the device is powered, one of two

operating modes can be selected through pin S.

Table 3: Functional table of AMIS-42670; X = don’t care

VCC

pin TxD

pin S

pin CANH

pin CANL

Bus state

pin RxD

4.75 to 5.25.V

VCC<PORL (unpowered)

PORL<VCC<4.75V

0 (or floating)

High

VCC/2

0V<CANH<VCC

Low

VCC/2

0V<CANL<VCC

Dominant

Recessive

1 (or floating)

>2V

7.1.1. High-Speed Mode

If pin S is pulled low (or left floating), the transceiver is in its high-speed mode and 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 line outputs are optimized to give

extremely low electromagnetic emissions.

7.1.2. Silent Mode

In silent mode, the transmitter is disabled. All other IC functions continue to operate. The silent mode is selected by connecting pin S to

VCC and can be used to prevent network communication from being blocked, due to a CAN controller which is out of control.

7.2 Over-temperature 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 off-state resets when pin TxD goes high. The thermal protection

circuit is particularly necessary when a bus line short-circuits.

7.3 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 1Mbit/s.

7.4 Fail-safe Features

A current-limiting circuit protects the transmitter output stage from damage caused by an 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 4). Pin TxD is

pulled high internally should the input become disconnected.

AMI Semiconductor – October 07, Rev. 1.0

www.amis.com Specifications subject to change without notice

1 2 345 6 7...12

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