TJA1051 データシートの表示（PDF） - NXP Semiconductors.

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TJA1051

High-speed CAN transceiver

NXP Semiconductors. 

TJA1051

High-speed CAN transceiver

Rev. 5 — 29 December 2010

Product data sheet

1. General description

The TJA1051 is a high-speed CAN transceiver that provides an interface between a

Controller Area Network (CAN) protocol controller and the physical two-wire CAN bus.

The transceiver is designed for high-speed (up to 1 Mbit/s) CAN applications in the

automotive industry, providing differential transmit and receive capability to (a

microcontroller with) a CAN protocol controller.

The TJA1051 belongs to the third generation of high-speed CAN transceivers from NXP

Semiconductors, offering significant improvements over first- and second-generation

devices such as the TJA1050. It offers improved ElectroMagnetic Compatibility (EMC)

and ElectroStatic Discharge (ESD) performance, and also features:

• Ideal passive behavior to the CAN bus when the supply voltage is off

• TJA1051T/3 and TJA1051TK/3 can be interfaced directly to microcontrollers with

supply voltages from 3 V to 5 V

These features make the TJA1051 an excellent choice for all types of HS-CAN networks,

in nodes that do not require a standby mode with wake-up capability via the bus.

2. Features and benefits

2.1 General

 Fully ISO 11898-2 compliant

 Suitable for 12 V and 24 V systems

 Low ElectroMagnetic Emission (EME) and high ElectroMagnetic Immunity (EMI)

 VIO input on TJA1051T/3 and TJA1051TK/3 allows for direct interfacing with 3 V to 5 V

microcontrollers (available in SO8 and very small HVSON8 packages respectively)

 EN input on TJA1051T/E allows the microcontroller to switch the transceiver to a very

low-current Off mode

2.2 Low-power management

 Functional behavior predictable under all supply conditions

 Transceiver disengages from the bus when not powered up (zero load)

2.3 Protection

 High ElectroStatic Discharge (ESD) handling capability on the bus pins

 Bus pins protected against transients in automotive environments

 Transmit Data (TXD) dominant time-out function

 Undervoltage detection on pins VCC and VIO

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