TJA1051T/3/1
TJA1051T/3/1 - High-Speed CAN Transceiver | NXP | 8-SO
The TJA1051T/3/1 is a high-speed CAN transceiver from NXP Semiconductors, providing an interface between a CAN protocol controller and the physical two-wire CAN bus. It supports data rates up to 1 Mbit/s in classical CAN and CAN FD networks, operates from a 4.5V to 5.5V supply, and comes in an 8-pin SOIC (SO-8) package.
A CAN transceiver is a physical layer device that converts digital signals from a CAN controller into differential signals on the twisted-pair CAN bus, and vice versa. Within the power-management and interface IC hierarchy, it sits between the protocol controller and the bus, providing drive capability, protection, and noise immunity for reliable communication in harsh automotive and industrial environments.
Key features include a VIO pin (the /3 suffix) that allows direct interfacing to microcontrollers with I/O supply voltages from 3V to 5V, ideal passive behavior to the CAN bus when the supply is off (the unpowered node does not load the bus), and a silent mode via the S pin that disables the transmitter while the receiver stays active. The /1 suffix indicates dual-sourcing from two fab locations for supply chain flexibility.
The TJA1051 is NXP's third-generation high-speed CAN transceiver, delivering improved ElectroMagnetic Compatibility (EMC) and ElectroStatic Discharge (ESD) performance versus the earlier TJA1050 generation. It is AEC-Q100 qualified for automotive reliability and is pin-compatible with the TJA1050, enabling drop-in replacement in existing layouts.
Typical applications include body control modules, gateway modules, engine control units, and industrial automation networks. Low power consumption and robust ESD protection suit battery-powered and harsh-environment nodes.
Design tip: terminate the CAN bus with 120 ohms at both ends and connect the VIO pin to the microcontroller supply to match TXD/RXD/S logic levels - in 5V systems without /3 variants, pin 5 is NC, which is also safe.
USD $0.33
In Stock
