Overview
The SN65HVD234DG4, produced by Texas Instruments, is a 3.3-V CAN (Controller Area Network) bus transceiver designed for operation in harsh environments. It complies with the ISO 11898-2 standard and provides transmit and receive capability between the differential CAN bus and a CAN controller, supporting data rates up to 1 Mbps. This transceiver is particularly robust, featuring 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. It is widely used in industrial, building automation, transportation, and automotive applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | -0.3 | - | 7 | V |
| Voltage at any bus terminal (CANH or CANL) | -36 | - | 36 | V |
| Transient pulse voltage, CANH and CANL | -100 | - | 100 | V |
| Input voltage (D, RS, EN, LBK, AB) | -0.5 | - | 7 | V |
| Output voltage | -0.5 | - | 7 | V |
| Receiver output current | -10 | - | 10 | mA |
| Operating junction temperature | - | - | 150 | °C |
| Storage temperature | - | - | 125 | °C |
| Data Rates | - | - | 1 Mbps | - |
| Common Mode Range | -7 | - | 12 | V |
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)
- Ultra Low Current Sleep Mode – 50-nA Typical Current Consumption
- Thermal Shutdown Protection
- Power up and Down With Glitch-Free Bus Inputs and Outputs
- High-Input Impedance With Low VCC
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
Q & A
- What is the primary function of the SN65HVD234DG4?
The SN65HVD234DG4 is a CAN bus transceiver that provides transmit and receive capability between the differential CAN bus and a CAN controller.
- What is the maximum data rate supported by the SN65HVD234DG4?
The SN65HVD234DG4 supports data rates up to 1 Mbps.
- What kind of protection does the SN65HVD234DG4 offer?
The device features 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.
- What is the common mode range of the SN65HVD234DG4?
The device operates over a wide –7 V to 12 V common-mode range.
- Is the SN65HVD234DG4 compatible with ISO 11898-2?
Yes, the SN65HVD234DG4 is compatible with the ISO 11898-2 standard.
- What are the different modes of operation for the SN65HVD234DG4?
The device can operate in high-speed mode, slope control mode, and low-power standby mode, controlled by the RS pin.
- How does the SN65HVD234DG4 handle unpowered nodes?
An unpowered node does not disturb the bus.
- What is the typical current consumption in sleep mode?
The typical current consumption in sleep mode is 50 nA.
- Is the SN65HVD234DG4 suitable for harsh environments?
Yes, the device is designed for operation in especially harsh environments.
- What are some common applications of the SN65HVD234DG4?
Common applications include industrial automation, motor and robotic control, building and climate control, and automotive systems.
- Does the SN65HVD234DG4 support glitch-free power-up and power-down?
Yes, the device supports glitch-free bus inputs and outputs during power-up and power-down.
