Overview
The TJA1055T/3/1J, produced by NXP USA Inc., is an enhanced fault-tolerant CAN (Controller Area Network) transceiver designed for automotive and industrial communication systems. This component serves as the interface between the CAN protocol controller and the physical bus wires, ensuring reliable and robust communication in harsh environments. It supports up to 32 nodes and is compatible with ISO 11898-2 and ISO 11898-5 physical layer standards.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | NXP Semiconductors |
| Part Number | TJA1055T/3/1J |
| Package / Case | 14-SOIC |
| Voltage Supply | 4.75V ~ 5.25V |
| Operating Temperature | -40°C ~ 125°C |
| Protocol | CANbus |
| Number of Drivers/Receivers | 1/1 |
| ESD Protection | ±8 kV (HBM), ±6 kV (IEC 61000-4-2) |
| Common-Mode Range | Up to ±30 V |
Key Features
- High-speed CAN interface supporting up to 125 kBd
- Differential receiver with wide common-mode range
- Low power mode with wake-up capability via bus lines
- Thermal protection with auto-restart
- Bus pins short-circuit safe to battery and ground
- High ElectroMagnetic Immunity (EMI) and low ElectroMagnetic Emission (EME)
- Automatic switching to single-wire mode in case of bus failures
- Transmit Data (TXD) dominant time-out function
- Fail-safe features to protect against system malfunctions
Applications
- Automotive electronics, particularly in passenger cars
- Industrial control systems
- Embedded systems
- Networking equipment
Q & A
- What is the primary function of the TJA1055T/3/1J?
The TJA1055T/3/1J is a CAN transceiver that acts as the interface between the CAN protocol controller and the physical bus wires. - What are the supported CAN standards?
The TJA1055T/3/1J is compatible with ISO 11898-2 and ISO 11898-5 physical layer standards. - What is the operating temperature range of the TJA1055T/3/1J?
The operating temperature range is from -40°C to 125°C. - Does the TJA1055T/3/1J support low power modes?
Yes, it supports low current sleep mode and standby mode with wake-up via the bus lines. - What kind of ESD protection does the TJA1055T/3/1J offer?
The device offers ±8 kV ESD protection (HBM) and ±6 kV ESD protection (IEC 61000-4-2) for off-board pins. - Can the TJA1055T/3/1J handle bus failures?
Yes, it automatically switches to single-wire mode in the event of bus failures and has fail-safe features to protect against system malfunctions. - What is the maximum number of nodes supported by the TJA1055T/3/1J?
Up to 32 nodes can be connected. - Is the TJA1055T/3/1J thermally protected?
Yes, it has thermal protection with auto-restart capability. - What is the common-mode range of the differential receiver?
The differential receiver has a wide common-mode range up to ±30 V. - Is the TJA1055T/3/1J suitable for 12V and 24V systems?
Yes, it is suitable for both 12V and 24V systems.
