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TJA1043T

AEC-Q100 CAN FD transceiver, 5Mbps, multi-mode low power, remote wake-up, SO-8

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Manufacturer Part：

TJA1043T

Package：

SO-8 (4.9 x 3.9 x 1.75 mm)

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Description

Product Overview

The TJA1043T is an NXP high-speed CAN transceiver providing the interface between a CAN protocol controller and the physical bus. It supports CAN FD (Flexible Data Rate) up to 5Mbps, offers very low electromagnetic emission, and features multiple low-power modes for automotive wake-up and battery management applications.

Key Specifications

Data Rate Up to 5Mbps (CAN FD)
Supply Voltage VCC 4.75V to 5.25V
Battery Voltage VBAT 5V to 28V
Bus Pins ESD (HBM) ±8kV
Standby Current 40μA (typical at VBAT)
Sleep Current 3μA (typical at VBAT)
Operating Temperature -40°C to +150°C
Qualification AEC-Q100

Features

  • CAN FD support up to 5Mbps
  • Very low electromagnetic emission (EME)
  • Multiple low-power modes: Standby, Sleep, Go-to-Sleep
  • Local and remote wake-up capability
  • INH output for voltage regulator control
  • Bus pins protected against automotive transients
  • Wake-up source identification via WAKE pin
  • VIO pin for I/O level matching (3.3V/5V)

Applications

  • Automotive CAN FD networks
  • Gateway and ECU CAN communication
  • Automotive body and comfort electronics
  • Battery management systems
  • Industrial CAN networks

The TJA1043T is an NXP AEC-Q100 qualified high-speed CAN FD transceiver supporting data rates up to 5Mbps. It features multiple low-power modes (Standby, Sleep, Go-to-Sleep) with standby current as low as 40μA and sleep current of 3μA, making it ideal for always-on automotive battery management. The device supports local and remote wake-up, provides an INH output for voltage regulator control, and includes a VIO pin for 3.3V/5V I/O level matching. Packaged in SO-8, it is widely used in automotive CAN FD networks, gateways, and ECUs.

The TJA1043T operates as a physical layer transceiver between the CAN controller and the bus. In Normal mode, it transmits and receives CAN FD frames at up to 5Mbps. The transmitter converts the TXD logic signal into differential bus signals (CANH/CANL), while the receiver converts differential bus signals back to the RXD logic signal. In Standby mode, the transmitter is disabled but the receiver monitors the bus for wake-up patterns, consuming only 40μA. In Sleep mode, current drops to 3μA while a dedicated wake-up receiver still monitors the bus. The INH output controls an external voltage regulator, turning it on when a wake-up event occurs. The VIO pin sets the I/O voltage level, enabling direct connection to 3.3V or 5V microcontrollers without level shifters.

Pin Mnemonic Description
1 TXD Transmit data input
2 GND Ground
3 VCC 5V supply voltage
4 RXD Receive data output
5 VIO I/O voltage reference (3.3V/5V)
6 CANL Low-level CAN bus line
7 CANH High-level CAN bus line
8 STB/NERR Standby control / error output
  • Automotive CAN FD gateway with 5Mbps data rate and 3μA sleep current
  • ECU CAN transceiver with remote wake-up and INH regulator control
  • Battery management system CAN interface with ultra-low sleep current
  • Body electronics module with 3.3V MCU direct connection via VIO pin
  • Industrial CAN bus with high ESD protection and low emission
Model Manufacturer Key Difference
TJA1044T NXP Pin-compatible, different wake-up behavior
TJA1050 NXP Classic CAN (no FD), no low-power mode
SN65HVD74 TI CAN FD transceiver, 5Mbps
MCP2558FD Microchip CAN FD transceiver, 8kV ESD
ATA6563 Microchip CAN FD, 5Mbps, AEC-Q100
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Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

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Contact Information

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Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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