Texas Instruments SN65HVD257 CAN Transceiver
Texas Instruments SN65HVD257 CAN Transceiver meets the ISO1189-2 high speed CAN (Controller Area Network) physical layer standard. This device is designed for data rates above 1Mbps for CAN in short networks. The transceiver allows for enhanced timing margin and higher data rates in long and highly loaded networks. The Texas Instruments SN65HVD257 provides many protection features to enhance the device and CAN-network robustness. This device adds additional features that allow for an easy design of redundant and multi-topology networks with fault indication for higher levels of functional safety in the CAN system.
Features
- Meets the requirements of ISO11898-2
- Turbo CAN:
- Short and symmetrical propagation delay times and fast loop times for enhanced timing margin
- Higher data rates in CAN networks
- I/O voltage range supports 3.3V and 5V MCUs
- Ideal passive behavior when unpowered
- Bus and logic pins are high impedance (no load)
- Power up and power down with glitch-free operation on the bus
- Protection features
- HBM ESD protection exceeds ±12kV
- Bus fault protection of –27V to 40V
- Undervoltage protection on supply pins
- Driver dominant time out (TXD DTO)
- SN65HVD257: receiver-dominant time out (RXD DTO)
- SN65HVD257: FAULT output pin
- Thermal shutdown protection
- Characterized for –40°C to 125°C operation
Applications
- 1Mbps operation in highly loaded CAN networks down to 10kbps networks using TXD DTO
- Industrial automation, control, sensors, and drive systems
- Building, security, and climate control automation
- Telecom base station status and control
- SN65HVD257
- Functional Safety with redundant and multi-topology CAN networks
- CAN bus standards such as CANopen, DeviceNet, NMEA2000, ARNIC825, ISO11783, and CANaerospace
Functional Block Diagram
Inilathala: 2017-05-16
| Na-update: 2022-05-09