具有 I/O 电平转换和电源优化的汽车类 5V CAN 收发器

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封装|引脚|尺寸

SOIC (D) 8 19 mm² 3.91 x 4.9 open-in-new 查找其它 CAN 和 LIN 收发器和 SBC

特性

  • Qualified for Automotive Applications
  • Meets or Exceeds the Requirements of ISO 11898
  • GIFT/ICT Compliant
  • ESD Protection up to ±12 kV (Human-Body Model)
    on Bus Pins
  • Level Adapting I/O Voltage Range to Support MCUs
    With Digital I/Os From 3 V to 5.25 V
  • Low-Power Standby Mode <15 µA max
    • SN65HVDA540: No Wake Up
    • SN65HVDA541: Wake Up Powered By VIO
      Supply So VCC (5 V) Supply May Be Shut
      Down to Save System Power
  • High Electromagnetic Immunity (EMI)
  • Low Electromagnetic Emissions (EME)
  • Protection
    • Undervoltage Protection on VIO and VCC
    • Bus-Fault Protection of –27 V to 40 V
    • Dominant Time-Out Function
    • Thermal Shutdown Protection
    • Power-Up/Down Glitch-Free Bus Inputs and Outputs
  • APPLICATIONS
    • SAE J2284 High-Speed CAN for Automotive Applications
    • SAE J1939 Standard Data Bus Interface
    • ISO 11783 Standard Data Bus Interface
    • NMEA 2000 Standard Data Bus Interface

(1) The signaling rate of a line is the number of voltage transitions that are made per second, expressed in the units bps (bits per second).

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描述

The SN65HVDA540/SN65HVDA541 meets or exceeds the specifications of the ISO 11898 standard for use in applications employing a Controller Area Network (CAN). The device is qualified for use in automotive applications.

As a CAN transceiver, this device provides differential transmit capability to the bus and differential receive capability to a CAN controller at signaling rates up to 1 megabit per second (Mbps)(1).

Designed for operation in especially harsh environments, the SN65HVDA540/SN65HVDA541 features cross-wire, bus over voltage, loss of ground protection, over temperature thermal shut down protection, and a wide common-mode range.

The SN65HVDA540/SN65HVDA541 has an I/O supply voltage input pin (VIO , pin 5) to ratiometrically level shift the digital logic input and output levels with repsect to VIO for compatibility with protocol controllers having I/O supply voltages between 3 V and 5.25 V. The VIO supply also powers the low-power bus monitor and wake-up receiver of the SN65HVDA541 allowing the 5 V (VCC) supply to be switched off for additional power savings at the system level during standby mode for either the SN65HVDA540 or SN65HVDA541. The 5 V (VCC) supply needs to be reactivated by the local protocol controller at any time to resume high speed operation if it has been turned off for low-power standby operation. Both of the supply pins have undervoltage detection which place the device in standby mode to protect the bus during an undervoltage event on either the VCC or VIO supply pins. If VIO is undervoltage the RXD pin is 3-statedn and the device does not pass any wake-up signals from the bus to the RXD pin.

STB (pin 8) provides for two different modes of operation: normal mode or low-power standby mode. The normal mode of operation is selected by applying a low logic level to STB. If a high logic level is applied to STB, the device enters standby mode (see Figure 1 and Figure 2). In standby mode, the SN65HVDA541 provides a wake-up receiver and monitor that remains active supplied via the VIO pin so that VCC may be removed allowing a system level reduction in standby current. A dominant signal on the bus longer than the wake-up signal time (tBUS) is passed to the receiver output (RXD, pin 4) by the wake-up bus monitor circuit. The local protocol controller may then return the device to normal mode when the system needs to transmit or fully monitor the messages on the bus. If the bus has a fault condition where it is stuck dominant while the SN65HVDA541 is placed into standby mode, the device locks out the wake-up receiver output to RXD until the fault has been removed to prevent false wake-up signals in the system. Because the SN65HVDA540 does not have a low-power bus monitor and wake-up receiver, it provides a logic high output (recessive) on RXD while in standby mode.

A dominant time-out circuit prevents the driver from blocking network communication in event of a hardware or software failure. The dominant time out circuit is triggered by a falling edge on TXD (pin 1). If no rising edge is seen before the time-out constant of the circuit expires, the driver is disabled. The circuit is reset by the next rising edge on TXD.

open-in-new 查找其它 CAN 和 LIN 收发器和 SBC
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技术文档

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类型 标题 下载最新的英文版本 发布
* 数据表 5-V CAN Transceiver With I/O Level Shifting and Supply Optimization 数据表 2009年 5月 8日

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

硬件开发

评估板 下载
document-generic 用户指南
$199.00
说明

MMWAVEICBOOST 承载卡平台可以为各种传感器和天线套件提供模块化接口,因此可以快速评估毫米波传感器。 借助 USB 连接,该承载卡可进行调试和仿真,还可直接连接到毫米波工具。 与 DCA1000EVM 实时数据采集适配器配对之后,即可采集原始模数转换器 (ADC) 数据。

MMWAVEICBOOST 具有 LaunchPad™ 开发套件接口,可以扩展连接,例如以太网供电 (PoE)、Wi-Fi®、低于 1GHz 的连接等等。

特性
  • 模块化连接,可连接到毫米波天线插件模块
  • BoosterPack™ 插件模块接口
  • 通过板载 XDS110 进行调试和仿真
  • 用于采集原始 ADC 数据的 DCA1000EVM 接口
  • 兼容 mmWave Studio (MMWAVE-STUDIO) 工具,包括毫米波演示可视化工具 (MMWAVE-DEMO-VISUALIZER)

设计工具和仿真

仿真工具 下载
document-generic 用户指南 document-generic 下载英文版本 (Rev.A)

参考设计

参考设计 下载
功耗优化型 77GHz 液位变送器参考设计
TIDEP-0091 TI Design TIDEP-0091 highlights strategies for power optimization of IWR14xx 76- to 81-GHz mmWave sensors in tank level-probing applications, displacement sensors, 4- to 20-mA sensors, and other low-power applications for detecting range with high accuracy in a minimal power envelope. In these (...)
document-generic 原理图 document-generic 用户指南 document-generic 下载英文版本 (Rev.B)

CAD/CAE 符号

封装 引脚 下载
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