NXP 公司的TJA1041是高速CAN收发器，为协议控制器和控制器局域网(CAN)节点间提供了先进的接口，接口标准和ISO 11898兼容，通信速率高达1Mbps，有极好的电磁兼容(EMC)性能和非常低的功耗，广泛用于汽车电子。本文介绍了TJA1041的主要性能，典型应用。

TJA1041 High speed CAN transceiver

The TJA1041 provides an ADVANCED INTERFACE between the protocol CONTROLLER and the

physical bus in a Controller Area Network (CAN) node. The TJA1041 is primarily intended for automotive high-speed CAN applications (up to 1 Mbit/s). The transceiver provides differential transmit capability to the bus and differential receive capability to the CAN controller. The TJA1041 is fully compatible to the ISO 11898 STANDARD, and offers

excellent ElectroMagnetic Compatibility (EMC) performance, very low power

consumption, and passive behavior when supply VOLTAGE is off. The advanced features

include:

Low-power management, supporting local and REMOTE wake-up with wake-up source

recognition and the capability to control the power supply in the rest of the node

Several protection and diagnosis functions including short circuits of the bus lines and

first BATTERY connection

Automatic adaptation of the I/O-levels, in line with the supply voltage of the controller

主要特性：

1.Optimized for in-vehicle high speed communication

Fully compatible with the ISO 11898 standard

Communication speed up to 1 Mbit/s

Very low ElectroMagnetic Emission (EME)

Differential RECEIVER with wide common-mode range, offering high ElectroMagnetic

Immunity (EMI)

Passive behavior when supply voltage is off

Automatic I/O-level adaptation to the host controller supply voltage

Recessive bus DC voltage stabilization for further improvement of EME behavior

Listen-only mode for node diagnosis and failure containment

Allows implementation of large NETWORKS (more than 110 nodes)

2．Low-power management

Very low-current in Standby and Sleep mode, with local and remote wake-up

Capability to power-down the entire node, still allowing local and remote wake-up

Wake-up source recognition

3．Protection and diagnosis (detection and signalling)

TXD dominant clamping handler with diagnosis

RXD recessive clamping handler with diagnosis

TXD-to-RXD short-circuit handler with diagnosis

Overtemperature protection with diagnosis

Undervoltage detection on pins VCC, VI/O and VBAT

Automotive environment transient protected bus pins and pin VBAT

Short-circuit proof bus pins and pin SPLIT (to battery and to ground)

Bus line short-circuit diagnosis

Bus dominant clamping diagnosis

Cold start diagnosis (first battery connection)