TJA1044GTJ

NXP  TJA1044GTJ  总线, CAN, 4.75 V, 5.25 V, SOIC 新

Overview

The TJA1044 is part of the Mantis family of high-speed CAN transceivers. It 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 CAN applications in the automotive industry, providing the differential transmit and receive capability to a microcontroller with a CAN protocol controller.

The TJA1044 offers a feature set optimized for 12 V automotive applications, with significant improvements over "s first- and second-generation CAN transceivers, such as the TJA1040, and excellent ElectroMagnetic Compatibility EMC performance. Additionally, the TJA1044 features:

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

* A very low-current Standby mode with bus wake-up capability

* Excellent EMC performance at speeds up to 500 kbit/s, even without a common mode choke

These features make the TJA1044 an excellent choice for all types of HS-CAN networks, in nodes that require a low-power mode with wake-up capability via the CAN bus.

The TJA1044 implements the CAN physical layer as defined in the current ISO11898 standard ISO11898-2:2003, ISO11898-5:2007 and the pending updated version of ISO 11898-2:2016. The TJA1044T is specified for data rates up to 1 Mbit/s. Pending the release of ISO11898-2:2016 including CAN FD and SAE-J2284-4/5, additional timing parameters defining loop delay symmetry are specified for the TJA1044GT and TJA1044GTK. This implementation enables reliable communication in the CAN FD fast phase at data rates up to 5 Mbit/s.

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## Features

### General

* Fully ISO 11898-2:2003 and ISO 11898-5:2007 compliant

* Very low-current Standby mode with host and bus wake-up capability

* Optimized for use in 12 V automotive systems

* EMC performance satisfies "Hardware Requirements for LIN, CAN and FlexRay Interfaces in Automotive Applications’, Version 1.3, May 2012.

* Can interface with 3.3 V and 5 V-supplied microcontrollers, provided the microcontroller I/Os are 5 V tolerant.

* AEC-Q100 qualified

* Dark green product halogen free and Restriction of Hazardous Substances RoHS compliant

* Available in SO8 package and leadless HVSON8 package 3.0 mm x 3.0 mm with improved Automated Optical Inspection AOI capability

### Predictable and fail-safe behavior

* Functional behavior predictable under all supply conditions

* Transceiver disengages from bus when not powered zero load

* Transmit Data TXD and bus dominant time-out functions

* Internal biasing of TXD and STB input pins

### Protection

* High ESD handling capability on the bus pins 8 kV IEC and HBM

* Bus pins protected against transients in automotive environments

* Undervoltage detection on pin VCC

* Thermally protected

### TJA1044GT/TJA1044GTK

* Timing guaranteed for data rates up to 5 Mbit/s

* Improved TXD to RXD propagation delay of 210 ns

## Features