ZLG TJA1050 CAN High-Speed Transceiver Application Note


ZLG TJA1050 CAN High-Speed Transceiver Application Note - cover page
Brand
ZLG
Category
Automotive supplies
Document type
Application Note
Language
Chinese
Pages
18
File format
PDF
Published
29 October, 2011
Updated
29 September, 2023
MD5 checksum
1356F7E58568624F884305D04085F350

About this manual

The document provides a detailed overview of the TJA1050 high‑speed CAN transceiver, covering its compliance with ISO 11898, typical application circuits, and the benefits of using split‑termination and bypass capacitors for EMC performance. It also compares the TJA1050 with the PCA82C250 and gives design recommendations for automotive networks.

Key topics include the transceiver’s two operating modes (high‑speed and silent), the TxD explicit timeout protection, 3.3 V compatibility, power consumption figures, and guidelines for node count, bus length and topology. The note ends with reference tables and a bibliography for further study. This manual is written in Chinese.

What's inside

  • Introduction
  • General Application of CAN High‑Speed Transceiver
  • TJA1050 Features
  • Operating Modes
  • EMC Design Guidelines
  • Power and Bypass Capacitors
  • Ground Level Shift Issues
  • Unpowered Transceiver Behavior
  • Replacing PCA82C250 with TJA1050
  • Bus Network Considerations

Specifications

Maximum data rate1 Mbit/s
Supported supply voltage5 V (compatible with 3.3 V devices)
Maximum number of nodesat least 110
TxD explicit timeout protectionDisables transmitter after excessive dominant TxD

Frequently asked questions

What is the maximum data rate supported by the TJA1050?

The TJA1050 can operate up to 1 Mbit/s.

How many nodes can be connected to a bus using the TJA1050?

The transceiver can connect at least 110 nodes on the bus.

What does the TxD explicit timeout function do?

It disables the transmitter if the TxD line stays dominant longer than allowed, preventing bus lock‑up.

Can the TJA1050 be used with 3.3 V devices?

Yes, the transceiver is compatible with both 3.3 V and 5 V devices.

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