Overview
The SN65HVD230QDR is a Controller Area Network (CAN) transceiver designed by Texas Instruments. It is part of the SN65HVD23x family, which includes the SN65HVD230Q, SN65HVD231Q, and SN65HVD232Q models. These transceivers are intended for use in applications that employ the CAN serial communication physical layer, adhering to the ISO 11898 standard. They are particularly suited for harsh environments and are compatible with 3.3-V microprocessors, microcontrollers, and digital signal processors (DSPs) with CAN controllers.
The SN65HVD230QDR operates with a single 3.3-V supply and supports data rates up to 1 Mbps. It features differential transmit and receive capabilities, making it suitable for industrial, building automation, and automotive applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | -0.3 | - | 6 | V |
| Bus Voltage (CANH or CANL) | -4 | - | 16 | V |
| Transient Pulse Voltage (CANH or CANL) | -25 | - | 25 | V |
| Digital Input/Output Voltage (VI) | -0.5 | - | VCC + 0.5 | V |
| Receiver Output Current (IO) | -11 | - | 11 | mA |
| Operating Temperature Range | -40 | - | 125 | °C |
| Standby Mode Supply Current | - | 370 | - | μA |
| Propagation Delay Time (Low-to-High) | 35 | 85 | - | ns |
Key Features
- Compatibility with ISO 11898-2 Standard: Adheres to the high-speed CAN physical layer standard.
- Adjustable Driver Transition Times: Allows for improved emissions performance through slope control using an external resistor.
- Low Power Modes: The SN65HVD230QDR features a low current standby mode (370 μA typical) and the SN65HVD231Q features an ultra-low current sleep mode (40 nA typical).
- Protection Features: Includes cross-wire protection, loss-of-ground and overvoltage protection, overtemperature protection, and a wide common-mode range.
- High Input Impedance: Allows for up to 120 nodes on a bus.
- Thermal Shutdown Protection: Ensures device safety in high-temperature conditions.
- Open Circuit Fail-Safe Design: Provides glitch-free power up and power down protection for hot plugging applications.
- Voltage Reference (Vref): Available as a VCC/2 voltage reference on the SN65HVD230Q and SN65HVD231Q models.
Applications
- Industrial Automation: Control systems, sensors, and drive systems.
- Motor and Robotic Control: High-speed and precise control applications.
- Building and Climate Control (HVAC): Automation and control systems.
- Telecom and Basestation Control: Status and control applications.
- Automotive Applications: Vehicle networks and control systems.
- CAN Bus Standards: Compatible with CANopen, DeviceNet, and CAN Kingdom standards.
Q & A
- What is the primary function of the SN65HVD230QDR?
The SN65HVD230QDR is a CAN transceiver designed to interface a single-ended CAN controller with a differential CAN bus, supporting data rates up to 1 Mbps.
- What are the key protection features of the SN65HVD230QDR?
The device includes cross-wire protection, loss-of-ground and overvoltage protection, overtemperature protection, and a wide common-mode range.
- What are the different operating modes available on the SN65HVD230QDR?
The device supports high-speed mode, slope control mode, and low-power standby mode, controlled by the RS pin.
- How does the slope control feature work?
The slope control is implemented by connecting a resistor between the RS pin and ground, adjusting the rise and fall slopes of the transmitter output.
- What is the typical supply current in standby mode for the SN65HVD230QDR?
The typical supply current in standby mode is 370 μA.
- What is the operating temperature range of the SN65HVD230QDR?
The operating temperature range is from -40°C to 125°C.
- Is the SN65HVD230QDR compatible with other CAN bus standards?
Yes, it is compatible with CANopen, DeviceNet, and CAN Kingdom standards.
- What is the maximum data rate supported by the SN65HVD230QDR?
The device supports data rates up to 1 Mbps.
- Does the SN65HVD230QDR have thermal shutdown protection?
Yes, it includes thermal shutdown protection to ensure device safety in high-temperature conditions.
- What is the significance of the Vref pin on the SN65HVD230QDR?
The Vref pin provides a VCC/2 voltage reference, which can be used for various applications.
