Overview
The NXP TJA1041T/N,112 is a high-speed CAN (Controller Area Network) transceiver designed for automotive and industrial applications. It provides an advanced interface between the protocol controller and the physical CAN bus, ensuring reliable and efficient communication. The TJA1041T is fully compliant with the ISO 11898 standard and supports CAN bit rates from 40 kbit/s up to 1 Mbit/s, making it suitable for a wide range of high-speed CAN applications.
Key Specifications
| Parameter | Description |
|---|---|
| Package | SO14 plastic small outline package; 14 leads; body width 3.9 mm (SOT108-1) |
| CAN Bit Rates | 40 kbit/s to 1 Mbit/s |
| Compatibility | ISO 11898 standard |
| Operating Modes | Normal mode, Pwon/listen-only mode, and others selected via control pins STB and EN |
| Power Management | Low-power management with local and remote wake-up, wake-up source recognition |
| Protection and Diagnosis | Short circuit protection, overtemperature protection, TXD dominant clamping detection |
| Electrostatic Discharge (ESD) Protection | Human Body Model (HBM): -6 to +6 kV on CANH, CANL, and SPLIT pins; -3 to +3 kV on TXD, RXD, VI/O, and STB pins; -4 to +4 kV on all other pins |
| Operating Temperature | -40 to +150 °C (virtual junction temperature), -40 to +85 °C (ambient temperature) |
| Pins | TXD, STB, GND, VCC, RXD, VI/O, EN, INH, ERR, WAKE, VBAT, SPLIT, CANH, CANL |
Key Features
- Advanced Power Management: Supports local and remote wake-up with wake-up source recognition and control of the power supply in the rest of the node.
- Protection and Diagnosis Functions: Includes short circuit protection of the bus lines, overtemperature protection, and TXD dominant clamping detection.
- Low Power Consumption: Designed for low power consumption and passive behavior when the supply voltage is off.
- Electromagnetic Compatibility (EMC): Offers excellent EMC performance.
- Operating Modes: Can be operated in multiple modes, including normal mode and pwon/listen-only mode, selected via control pins STB and EN.
- Galvanic Isolation: Not inherently part of the TJA1041T, but often used in systems requiring galvanic isolation.
Applications
The NXP TJA1041T/N,112 is primarily intended for automotive high-speed CAN applications but is also suitable for various industrial and embedded systems requiring reliable CAN communication. It can be used in:
- Automotive systems (e.g., vehicle networks, diagnostic tools)
- Industrial automation and control systems
- Embedded systems requiring CAN communication
- High-speed data acquisition and monitoring systems
Q & A
- What is the primary function of the TJA1041T/N,112?
The primary function is to provide the CAN physical layer as described in the ISO 11898 standard, acting as an interface between the protocol controller and the physical bus in a CAN node.
- What are the supported CAN bit rates for the TJA1041T/N,112?
The TJA1041T/N,112 supports CAN bit rates from 40 kbit/s up to 1 Mbit/s.
- Is the TJA1041T/N,112 compliant with any specific standards?
Yes, it is fully compliant with the ISO 11898 standard.
- What are the key protection and diagnosis functions of the TJA1041T/N,112?
It includes short circuit protection of the bus lines, overtemperature protection, and TXD dominant clamping detection.
- How does the TJA1041T/N,112 manage power?
The TJA1041T/N,112 supports low-power management with local and remote wake-up and wake-up source recognition.
- What is the operating temperature range of the TJA1041T/N,112?
The operating temperature range is -40 to +85 °C (ambient temperature) and -40 to +150 °C (virtual junction temperature).
- What types of ESD protection does the TJA1041T/N,112 offer?
The device offers ESD protection according to the Human Body Model (HBM): -6 to +6 kV on CANH, CANL, and SPLIT pins; -3 to +3 kV on TXD, RXD, VI/O, and STB pins; -4 to +4 kV on all other pins.
- Can the TJA1041T/N,112 be used in listen-only mode?
Yes, it can be operated in pwon/listen-only mode where the transmitter is disabled, and the receiver continues to convert the analog bus signal into digital data.
- What are the typical applications of the TJA1041T/N,112?
It is primarily used in automotive high-speed CAN applications and various industrial and embedded systems requiring reliable CAN communication.
- Does the TJA1041T/N,112 have galvanic isolation?
No, the TJA1041T/N,112 itself does not have galvanic isolation, but it can be used in systems that require galvanic isolation through external components.
