Overview
The TJA1055T/2Z, produced by NXP USA Inc., is an enhanced fault-tolerant CAN (Controller Area Network) transceiver designed for low-speed applications, particularly in automotive and industrial communication systems. It serves as the interface between the CAN protocol controller and the physical bus wires, ensuring reliable and robust communication. The device is optimized for use in passenger cars and supports up to 32 nodes on the CAN bus.
Key Specifications
| Parameter | Value |
|---|---|
| Protocol | CAN |
| Number of Drivers/Receivers | 1/1 |
| Duplex | Half |
| Voltage Supply | 4.75 V ~ 5.25 V |
| Operating Temperature | -40°C ~ 125°C |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| Data Rate | Up to 125 kBd |
| ESD Protection | ±8 kV Human Body Model (HBM), ±6 kV IEC 61000-4-2 for off-board pins |
Key Features
- Enhanced fault-tolerant design with automatic switching to single-wire mode in case of bus failures.
- Supports unshielded bus wires with low Electromagnetic Emission (EME) due to built-in slope control and good matching of CANL and CANH bus outputs.
- High Electromagnetic Immunity (EMI) in normal and low power modes.
- Fully integrated receiver filters and Transmit Data (TxD) dominant time-out function.
- Bus pins short-circuit safe to battery and ground, thermally protected, and protected against transients in automotive environments.
- Low current sleep mode and standby mode with wake-up via the bus lines.
- Differential receiver with high common-mode range and thermal protection with auto-restart.
- Supports single-wire transmission modes with ground offset voltages up to 1.5 V.
Applications
- Automotive electronics, particularly in passenger cars.
- Industrial control systems.
- Embedded systems.
- Networking equipment.
Q & A
- What is the primary function of the TJA1055T/2Z?
The TJA1055T/2Z is the interface between the CAN protocol controller and the physical bus wires in a Controller Area Network (CAN), primarily intended for low-speed applications in automotive and industrial settings.
- What is the maximum data rate supported by the TJA1055T/2Z?
The TJA1055T/2Z supports data rates up to 125 kBd.
- What kind of ESD protection does the TJA1055T/2Z offer?
The device offers ±8 kV Human Body Model (HBM) and ±6 kV IEC 61000-4-2 ESD protection for off-board pins.
- How many nodes can be connected to the CAN bus using the TJA1055T/2Z?
Up to 32 nodes can be connected to the CAN bus.
- What are the operating temperature ranges for the TJA1055T/2Z?
The operating temperature range is -40°C to 125°C.
- Does the TJA1055T/2Z support low power modes?
Yes, it supports low current sleep mode and standby mode with wake-up via the bus lines.
- What kind of bus failure management does the TJA1055T/2Z provide?
The device automatically switches to single-wire mode in case of bus failures and resets to differential mode if the failure is removed.
- Is the TJA1055T/2Z thermally protected?
Yes, the device is thermally protected with auto-restart capability.
- What is the package type of the TJA1055T/2Z?
The device is packaged in a 14-SOIC (0.154", 3.90mm Width) surface mount package.
- What are the typical applications of the TJA1055T/2Z?
Typical applications include automotive electronics, industrial control systems, embedded systems, and networking equipment.
