External Blog Article: TJA1050T/CM CAN Transceiver Overview and Application Guide

 

1. Product Overview

TJA1050T/CM is a high-speed CAN transceiver developed by NXP Semiconductors, compliant with the ISO 11898 standard. It is specifically designed for use in automotive and industrial CAN (Controller Area Network) systems, offering low electromagnetic emissions, strong noise immunity, and excellent thermal stability.



This model features an SOIC-8 package, making it ideal for compact PCB layouts. It is widely used in automotive electronics, industrial control, and building automation systems.

2. Key Specifications

Parameter Value
Operating Voltage   4.75V – 5.25V
Communication Rate Up to 1 Mbps (ISO 11898-2 compliant)
Interface Support CAN Bus (TXD / RXD)
Operating Temp Range -40°C to +125°C (Automotive/Industrial)
Package Type SOIC-8
ESD Protection ±6 kV (HBM)

PinNameDescription
1TXDTransmit data input from MCU
2GNDGround
3VCCPower supply input (+5V)
4RXDReceive data output to MCU
5VrefReference voltage output (½ Vcc)
6CANLCAN low line
7CANHCAN high line
8N.C.Not connected

4. Key Features

  • ✅ Low Electromagnetic Interference (EMI)

  • ✅ High-speed transmission up to 1 Mbps

  • ✅ TTL/CMOS compatible interface

  • ✅ ±18V bus fault protection

  • ✅ Strong ESD protection (±6kV HBM)



5. Typical Applications

Application FieldExamples
AutomotiveECU communication, body control modules
Industrial ControlPLCs, CAN-enabled industrial networks
Building AutomationElevators, smart access systems
Medical EquipmentCAN-controlled surgical or monitoring devices

6. Product Comparison

ModelSpeedTemp RangeESD ProtectionTypical Use
TJA1050T/CM     1 Mbps-40~125°C±6kV (HBM)Automotive, Industrial
SN65HVD230    1 Mbps-40~85°C±8kV (HBM)Industrial, Building
MCP2551   1 Mbps-40~125°C±4kVAutomotive CAN Systems

✅ TJA1050T/CM is ideal for applications requiring high temperature tolerance and reliability.

7. Selection Guidelines

When selecting a CAN transceiver, consider the following factors:

  • Compliance with ISO 11898

  • EMI performance (especially for automotive EMC standards)

  • Operating temperature range

  • PCB space and package type

  • Need for fault protection or thermal shutdown






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