SN65HVD234DR

The SN65HVD233, SN65HVD234, and SN65HVD235 are used in applications employing the controller area network (CAN) serial communication physical layer in accordance with the ISO 11898 standard. As a CAN transceiver, each provides transmit and receive capability between the differential CAN bus and a CAN controller, with signaling rates up to 1 Mbps. Designed for operation in especially harsh environments, the devices feature cross-wire protection, overvoltage protection up to ±36 V, loss of ground protection, overtemperature (thermal shutdown) protection, and common-mode transient protection of ±100 V. These devices operate over a wide -7 V to 12 V common-mode range. These transceivers are the interface between the host CAN controller on the microprocessor and the differential CAN bus used in industrial, building automation, transportation, and automotive applications. Modes: The RS pin (pin 8) of the SN65HVD233, SN65HVD234, and SN65HVD235 provides three modes of operation: high-speed, slope control, and low-power standby mode. The high-speed mode of operation is selected by connecting pin 8 directly to ground, allowing the driver output transistors to switch on and off as fast as possible with no limitation on the rise and fall slope. The rise and fall slope can be adjusted by connecting a resistor between the RS pin and ground. The slope will be proportional to the pin's output current. With a resistor value of 10 kΩ the device driver will have a slew rate of ~15 V/μs and with a value of 100 kΩ the device will have ~2.0 V/μs slew rate. For more information about slope control, refer to Feature Description.

Applications

• Industrial Automation, Control, Sensors, and Drive Systems
• Motor and Robotic Control
• Building and Climate Control (HVAC)
• Backplane Communication and Control
• CAN Bus Standards such as CANopen, DeviceNet, CAN Kingdom, ISO 11783, NMEA 2000, SAE J1939

Key features

• Single 3.3-V Supply Voltage
• Bus Pins Fault Protection Exceeds ±36 V
• Bus Pins ESD Protection Exceeds ±16 kV HBM
• Compatible With ISO 11898-2 GIFT/ICT Compliant
• Data Rates up to 1 Mbps
• Extended -7 V to 12 V Common Mode Range
• High-Input Impedance Allows for 120 Nodes
• LVTTL I/Os are 5-V Tolerant
• Adjustable Driver Transition Times for Improved Emissions Performance
• Unpowered Node Does Not Disturb the Bus
• Low Current Standby Mode, 200 μA (Typical)
• SN65HVD233: Loopback Mode
• SN65HVD234: Ultra Low Current Sleep Mode – 50-nA Typical Current Consumption
• SN65HVD235: Autobaud Loopback Mode
• Thermal Shutdown Protection
• Power up and Down With Glitch-Free Bus Inputs and Outputs
• High-Input Impedance With Low VCC
• Monolithic Output During Power Cycling