ADI ADM3055E带信号隔离通道CAN物理层收发器解决方案

ADI公司的ADM3055E是集成了逻辑侧开关键控(OOK)信号隔离通道和isoPower® DC/DC 转换器的控制器局域网(CAN)物理层收发器,满足CAN FD规范,工作速率5Mbps或更高的12 Mbps,和ISO 11898-2: 2016标准兼容.隔离电压5 kV rms/3 kV rms,工作温度−40℃到+105℃,主要用在CANOpen,DeviceNet和其它CAN总线,工业自动化,过程控制和建筑物控制,交通和基础设备.本文介绍了ADM3055E/ADM3057E主要特性,框图,以及评估板EVAL-ADM3055EEBZ主要特性,电路图,材料清单和PCB设计图.
The ADM3055E/ADM3057E are 5 kV rms and 3 kV rms isolated controller area network (CAN) physical layer transceivers with integrated isolated dc-to-dc converters. The ADM3055E/ ADM3057E meet flexible data rate (CAN FD) requirements for operation to 5 Mbps and higher and comply with the ISO 11898-2: 2016 standard. The ADM3055E/ADM3057E are capable of supporting data rates as high as 12 Mbps.
The devices employ Analog Devices, Inc., iCoupler® technology to combine a 3-channel isolator, a CAN transceiver, and an Analog Devices isoPower® dc-to-dc converter into a single, surface-mount, small outline integrated circuit (SOIC) package. The devices are powered by a single 5 V supply, realizing a fully isolated solution for CAN and CAN FD. Radiated emissions from the high frequency switching of the dc-to-dc convertors are kept below EN 55022 Class B limits by continuous adjustments to the switching frequency.
The ADM3055E/ADM3057E provide complete isolation between the CAN controller and physical layer bus. Safety and regulatory approvals (pending) for 5 kV rms isolation voltage, 10 kV surge test, and 8.3 mm creepage and clearance ensure the ADM3055E meets application reinforced isolation requirements. The ADM3057E has an isolation voltage of 3 kV rms and 7.8 mm creepage in a 20-lead, wide body SOIC.
Low propagation delays through the isolation support longer bus cables. Slope control mode is available for standard CAN at low data rates. Standby mode minimizes power consumption when the bus is idle or if the node goes offline. ...