TJF1051T/3,112

Drivers, Receivers, Transceivers Overview

The TJF1051T/3,112 is a high-speed CAN transceiver manufactured by NXP Semiconductors. It provides an interface between a Controller Area Network protocol controller and the physical two-wire CAN bus. The device supports data rates up to 5 Mbit/s in the CAN FD fast phase and complies with ISO 11898-2:2003 standards. It operates within a supply voltage range of 4.5 V to 5.5 V on pin VCC and features a dedicated VIO pin for microcontroller interfacing at voltages from 2.8 V to 5.5 V. The component includes undervoltage detection, thermal protection, and a TXD dominant time-out function. It is housed in an SO8 plastic small outline package (SOT96-1) and offers high ESD handling capability of ±8 kV on bus pins.

Drivers, Receivers, Transceivers Feature Summary

• Supports high-speed communication with guaranteed timing for data rates up to 5 Mbit/s in the CAN FD fast phase.
• Features a dedicated VIO input pin allowing direct interfacing with microcontrollers operating at supply voltages from 3 V to 5 V.
• Provides ideal passive behavior to the CAN bus when the supply voltage is off, ensuring zero load on the network.
• Includes fail-safe mechanisms such as TXD dominant time-out, undervoltage detection on VCC and VIO, and overtemperature protection.

Drivers, Receivers, Transceivers Applications

• High-speed CAN industrial applications requiring robust electromagnetic compatibility.
• Nodes in HS-CAN networks that do not require standby mode with wake-up capability via the bus.
• Systems interfacing microcontrollers with varying I/O supply voltages (3 V to 5 V).

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix

Drivers, Receivers, Transceivers Selection Notes

Select the TJF1051T/3 variant when the host microcontroller requires a separate VIO supply voltage distinct from VCC, typically ranging from 3 V to 5 V. Use the standard TJF1051T if the VIO pin is internally connected to VCC and only 5 V logic levels are needed. Ensure the application does not require bus wake-up functionality, as this device lacks that feature. Confirm compliance with ISO 11898-2:2003 requirements for the target network topology.

Drivers, Receivers, Transceivers Part Context

The TJF1051 belongs to the third generation of high-speed CAN transceivers from NXP Semiconductors. It offers significant improvements over first- and second-generation devices like the TJA1050, specifically regarding EMC and ESD performance. The TJF1051T/3 is a derivative of the base TJF1051T, distinguished by the external VIO pin for flexible I/O level adaptation.

Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers include TJF1051T/3,118 and TJF1051T/1J. These variants share the same core functionality and SO8 package but may differ in packaging format or manufacturing lot specifications.

Drivers, Receivers, Transceivers FAQ

What is the maximum data rate supported by the TJF1051T/3?

The TJF1051T/3 guarantees timing for data rates up to 5 Mbit/s in the CAN FD fast phase.

How does the TJF1051T/3 behave when the supply voltage is off?

It exhibits ideal passive behavior to the CAN bus, effectively disengaging from the network and presenting a zero load condition.

What is the purpose of the VIO pin on the TJF1051T/3?

The VIO pin allows the transceiver to be directly interfaced with microcontrollers having supply voltages from 3 V to 5 V, adapting the signal levels on TXD, RXD, and S pins accordingly.