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ADM3051是AD公司的一款车用接口产品,ADM3051是带24 V系统总线保护的高速工业级CAN收发器,本站介绍了ADM3051的封装应用图解、特点和优点、功能等,并给出了与ADM3051相关的AD元器件型号供参考。
ADM3051 - 带24 V系统总线保护的高速工业级CAN收发器 - 车用接口 - 非隔离式控制器区域网络 (CAN) - Analog Devices, LLC
ADM3051是一款控制器局域网(CAN)物理层收发器,允许协议层CAN控制器访问物理层总线。产品符合ISO 11898标准。它能以最高1Mbps的数据速率工作。
该器件具有限流和热关断特性,可防止24V总线电源系统发生输出短路以及总线短接至地或电源引脚的情况。该器件的额定温度范围为工业温度范围?40°C至+125°C,提供8引脚SOIC封装。
提供三种工作模式:高速、斜率控制和待机。引脚8(RS)用于选择工作模式。低电流待机模式可通过施加逻辑高电平至RS来加以选择。
该器件可在斜率控制工作模式下使用电阻将RS接地来修改斜率上升和下降以限制EMI。此模式方便使用非屏蔽电缆。或者,可将RS接地来禁用斜率控制,实现高速操作。在此模式下必须使用屏蔽电缆或其它EMI控制方式。
应用
The EVAL-ADM3051EBZ allows quick and easy evaluation of the ADM3051 CAN transceiver. The evaluation board allows all of the input and output functions to be exercised without the need for external components. Screw terminal blocks provide convenient connections for logic signals and power.
The main device on the evaluation board, the ADM3051, is a controller area network (CAN) physical layer transceiver, allowing a protocol layer CAN controller to access the physical layer bus. The ADM3051 complies with the ISO 11898 standard. It is capable of running at data rates of up to 1 Mbps.
For evaluation with a bus cable, a screw terminal block is provided to allow connection of CANH and CANL signals and connection of the cable shield.
The operating mode of the ADM3051 can be selected by jumper configuration. Three operating modes are available: high speed, slope control, and standby. Selecting standby mode connects Pin 8 (RS) of the ADM3051 to VCC, placing the device in a low current standby mode. Selecting slope control mode limits EMI by connecting RS with a 47 kΩ resistor to ground to modify the rise and fall of slopes. This mode facilitates the use of unshielded cables. Alternatively, selecting high speed mode disables slope control by connecting RS to ground, allowing high speed operation. Shielded cables or other measures to control EMI are necessary in this mode.
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