XL65HVD230DR

The XL65HVD230DR CAN transceiver complies with the ISO 11898-2 high-speed CAN physical layer standard. The device is designed for data rates up to 1 Mbps and includes multiple protection features that enhance the robustness of both the device and the CAN network. The XL65HVD230DR transceiver is designed to interface with microprocessors, microcontrollers, and DSPs with CAN controllers operating from a 3.3 V supply, or equivalent protocol controller devices. It is suitable for applications using the CAN serial communication physical layer compliant with ISO 11898. The device is designed for operation in harsh environments, featuring bus wire short-circuit protection, loss-of-ground and overvoltage protection, overtemperature protection, and a wide common-mode operating range. The CAN transceiver serves as the CAN physical layer, connecting the single-ended host CAN protocol controller to the differential CAN bus commonly used in industrial, building automation, and automotive applications. The device operates over a bus common-mode voltage range of -2 V to 7 V and can withstand ±25 V common-mode transients. The RS pin of the XL65HVD230DR provides three distinct operating modes: high-speed mode, slope control mode, and low-power mode. High-speed operation is selected by connecting the RS pin to ground, allowing the transmitter output transistors to switch as fast as possible with no limitation on rise and fall slopes. The rise and fall slopes can also be adjusted by connecting a resistor in series between the RS pin and ground; the slope will be proportional to the pin output current. With a resistance of 10 kΩ, the slew rate is approximately ~15 V/μs; with 100 kΩ, the slew rate is approximately ~2 V/μs. When a logic high is applied to the RS pin, the XL65HVD230DR enters a low-current standby mode in which the driver is disabled while the receiver remains active. This mode provides lower power consumption than normal mode while still allowing the CAN controller to monitor bus activity to determine whether the transceiver should be returned to normal mode or slope control mode. The device returns to transmit mode when the host controller wishes to send a message to the bus, or when bus traffic received during standby mode indicates that it should be ready to transmit again.

Applications

• Industrial automation, control, sensors, and drive systems
• Motor and robotics control
• Building and climate control
• Telecommunications and base station control & status monitoring
• CAN bus standard

Key features

• Single 3.3V supply operation
• ISO 11898-2 compliant
• Bus pin ESD protection exceeding ±8kV HBM
• High input impedance supports up to 120 nodes on the bus
• Adjustable driver slew rate for improved EMI performance
• Low-current standby mode – typical 370μA
• Designed for data rates up to 1Mbps
• Thermal shutdown protection
• Open-circuit failsafe design
• Glitch-free power-up and power-down protection for hot-plug applications