MAX562CAI+T

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Whether in the field of data communication, office automation or industrial automation, the principle of signal transmission is the same: the transmitter is used to convert the data to be transmitted into electrical signals, and the receiver is used to receive and convert the electrical signals into data that can be used. As the two most widely used signal types in the physical layer, RS485 and CAN are applied in many fields. The MAX562CAI+T is a member of the RS485/CAN family with excellent performance.

Application Field

The MAX562CAI+T is a mixed-signal device that provides unmatched interface performance for RS485 and CAN. It is ideal for demanding industrial and automotive applications as it provides a complete communications solution with integrated power supply, RS485 transceiver and CAN transceiver. Used as an RS485 transceiver, the MAX562CAI+T provides isolated RS485 transceivers with 10 Mbps data rate and allows powering device from a wide range of supply voltages, up to 40 VDC. It also provides a low-power standby mode, which reduces power consumption and extends battery life. The product also comes with integrated CAN controllers that support CAN 2.0 A/B protocols with communication rates up to 1 Mbits/s. Furthermore, its optional CAN physical layer termination allows for ease of design, low cost, and small footprint.

Working Principle

The MAX562CAI+T is an integrated power-efficient solution with two transceivers that operate independently: one for RS485 and the other for CAN. The RS485 transceiver provides full-duplex communications and allows direct connection to standard RS485 bus. The integrated CAN transceiver supports the standard compliant operations, conforming to the CAN 2.0 specification and providing a seamless interface to the controller area network. When connected to the CAN bus, the device will detect and report bit-rates of up to 1 Mbit/sec and implement physical layer termination resistors for optimal signal integrity. The device is isolated from the rest of the system using three isolation walls and is powered from a wide range of supply voltages, up to 40 VDC.

The RS485 transceiver is also equipped with two differential driver/receiver pairs which can be configured as two half-duplex drivers or as one full-duplex transceiver. The CAN transceiver operates in either receiver or transmitter mode and transmits or receives digital message formats conforming to standard CAN Protocol. The device supports Error Detection and Acknowledgement frames and the Data Frame class. When the device is in Standby Mode, the power consumption is reduced and thus helps to extend the battery life.

The MAX562CAI+T is an effective device for demanding industrial and automotive applications as it combines the signal processing of RS485 and CAN transceiver in one device, with integrated power supply, efficient signal transmission and optional CAN physical layer termination. Furthermore, its high performance and low cost make it an ideal solution for sensing, data logging and communication applications.

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