Datasheet > TJA1055

TJA1055

更新时间： 2024-11-10 07:04:31

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
26页	146K
描述
Enhanced fault-tolerant CAN transceiver

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TJA1055 数据手册

TJA1055

Enhanced fault-tolerant CAN transceiver

Rev. 04 — 17 February 2009

Product data sheet

1. General description

The TJA1055 is the interface between the protocol controller and the physical bus wires in

a Controller Area Network (CAN). It is primarily intended for low-speed applications up to

125 kBd in passenger cars. The device provides differential receive and transmit

capability but will switch to single-wire transmitter and/or receiver in error conditions. The

TJA1055 is the enhanced version of the TJA1054 and TJA1054A. TJA1055 has the same

functionality but in addition offering a number of improvements. The most important

improvements of the TJA1055 with respect to the TJA1054 and TJA1054A are:

• Improved ElectroStatic Discharge (ESD) performance

• Lower current consumption in sleep mode

• Wake-up signalling on RXD and ERR without V_CCactive

• 3 V interfacing with microcontroller possible with TJA1055T/3

2. Features

2.1 Optimized for in-car low-speed communication

I Pin-to-pin compatible with TJA1054 and TJA1054A

I Baud rate up to 125 kBd

I Up to 32 nodes can be connected

I Supports unshielded bus wires

I Very low ElectroMagnetic Emission (EME) due to built-in slope control function and a

very good matching of the CANL and CANH bus outputs

I Very high ElectroMagnetic Immunity (EMI) in normal operating mode and in low power

modes

I Fully integrated receiver ﬁlters

I Transmit Data (TxD) dominant time-out function

I High ESD robustness:

N ±8 kV Electrostatic Discharge (ESD) protection Human Body Model (HBM) for

off-board pins

N ±6 kV Electrostatic Discharge (ESD) protection IEC 61000-4-2 for off-board pins

I Low-voltage microcontroller support

2.2 Bus failure management

I Supports single-wire transmission modes with ground offset voltages up to 1.5 V

I Automatic switching to single-wire mode in the event of bus failures, even when the

CANH bus wire is short-circuited to V_CC

12 3 4 5 6 7...26

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