Overview
The SN65HVD255DR is a CAN (Controller Area Network) transceiver designed by Texas Instruments. This device is part of the SN65HVD25x series, which meets the ISO 11898-2 high-speed CAN physical layer standard. It is optimized for high data rates and large networks, offering enhanced timing margins and robust protection features. The SN65HVD255DR is particularly suited for industrial automation, control systems, and other applications requiring reliable and high-speed CAN communication.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 4.5 | - | 5.5 | V |
| Operating Temperature | -40 | - | 125 | °C |
| CAN Bus I/O Voltage (CANH, CANL) | -27 | - | 40 | V |
| Logic Input Pin Voltage (TXD, S) | -0.3 | - | 6 | V |
| Logic Output Pin Voltage (RXD) | -0.3 | - | 6 | V |
| Driver Dominant Time Out (TXD DTO) | No | - | - | - |
| Package Type | 8-SOIC | - | - | - |
| Package Size | 4.90 mm × 3.91 mm | - | - | - |
Key Features
- Meets ISO 11898-2 high-speed CAN physical layer standard
- Turbo CAN: Supports data rates in excess of 1 Mbps for short networks and enhanced timing margins for long and highly-loaded networks
- Short and symmetrical propagation delay times and fast loop times for enhanced timing margin
- I/O voltage range supports 3.3-V and 5-V microcontrollers
- Ideal passive behavior when unpowered: Bus and logic pins are high impedance (no load)
- Protection features include HBM ESD protection exceeding ±12 kV, bus fault protection (-27 V to 40 V), undervoltage protection on supply pins, driver dominant time out (TXD DTO), and thermal shutdown protection
- Characterized for operation from -40°C to 125°C
Applications
- Industrial automation, control, sensors, and drive systems
- Building, security, and climate control automation
- Telecom base station status and control
- CAN bus standards such as CANopen, DeviceNet, NMEA2000, ARINC825, ISO11783, and CANaerospace
Q & A
- What is the primary function of the SN65HVD255DR?
The SN65HVD255DR is a CAN transceiver designed to meet the ISO 11898-2 high-speed CAN physical layer standard, facilitating reliable and high-speed communication in CAN networks.
- What are the operating temperature ranges for the SN65HVD255DR?
The device operates from -40°C to 125°C.
- What types of protection features does the SN65HVD255DR offer?
The device includes HBM ESD protection, bus fault protection, undervoltage protection on supply pins, driver dominant time out (TXD DTO), and thermal shutdown protection.
- What is the significance of the 'Turbo CAN' feature in the SN65HVD255DR?
The 'Turbo CAN' feature supports data rates in excess of 1 Mbps for short networks and provides enhanced timing margins for long and highly-loaded networks.
- What package type and size does the SN65HVD255DR come in?
The device is packaged in an 8-SOIC package with dimensions of 4.90 mm × 3.91 mm.
- Does the SN65HVD255DR support both 3.3-V and 5-V microcontrollers?
- What are some common applications for the SN65HVD255DR?
Common applications include industrial automation, building automation, telecom base station status and control, and various CAN bus standards.
- How does the SN65HVD255DR behave when unpowered?
The device exhibits ideal passive behavior when unpowered, with bus and logic pins being high impedance (no load).
- Does the SN65HVD255DR have any specific features for functional safety?
No, the SN65HVD255DR does not have the additional functional safety features like the FAULT output pin available in the SN65HVD257 model.
- What is the maximum CAN bus I/O voltage range for the SN65HVD255DR?
The CAN bus I/O voltage range is from -27 V to 40 V.
