Overview
The TJA1145T,118 is a high-speed CAN (Controller Area Network) transceiver produced by NXP USA Inc. This component is designed to provide an interface between a CAN protocol controller and the physical two-wire CAN bus, making it ideal for high-speed CAN applications in the automotive industry.
The TJA1145T,118 supports ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-4 compliance, ensuring reliable communication at data rates up to 2 Mbit/s in the CAN FD fast phase. It features very low power consumption in Standby and Sleep modes, along with advanced power management and diagnostic capabilities.
Key Specifications
| Parameter | Description |
|---|---|
| Package Type | SO14 (14-pin SOIC) |
| Operating Temperature | -40°C to 150°C |
| Data Rate | Up to 2 Mbit/s in CAN FD fast phase |
| ESD Protection | ±8 kV (Human Body Model) on CAN bus pins, ±6 kV (IEC 61000-4-2) on BAT and WAKE pins |
| Bus Pins Protection | Short-circuit proof to ±58 V, protected against transients according to ISO 7637-3 |
| Power Consumption | Very low in Standby and Sleep modes |
| VIO Input | Allows direct interfacing with 3.3 V to 5 V microcontrollers |
| Operating Modes | Normal, Standby, Sleep, Overtemp, and Off |
| Compliance | ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-4 |
Key Features
- ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-4 compliant
- Timing guaranteed for data rates up to 2 Mbit/s in CAN FD fast phase
- Autonomous bus biasing according to ISO 11898-2:2016
- Optimized for in-vehicle high-speed CAN communication
- No ‘false’ wake-ups due to CAN FD in TJA1145/FD variants
- ±8 kV ESD protection on CAN bus pins and ±6 kV ESD protection on BAT and WAKE pins
- Bus pins short-circuit proof to ±58 V and protected against transients according to ISO 7637-3
- Very low power consumption in Standby and Sleep modes
- VIO input allows for direct interfacing with 3.3 V to 5 V microcontrollers
- 16-, 24-, or 32-bit SPI for configuration, control, and diagnosis
- Transmit Data (TXD) dominant time-out function with diagnosis
- Overtemperature warning and shut-down
- Undervoltage detection and recovery on pins VCC, VIO, and BAT
- Cold start diagnosis and advanced system and transceiver interrupt handling
Applications
The TJA1145T,118 is primarily designed for high-speed CAN applications in the automotive industry. It is suitable for use in various automotive systems that require reliable and efficient communication over the CAN bus.
- In-vehicle networks for real-time communication
- Automotive control units and modules
- Advanced driver-assistance systems (ADAS)
- Infotainment and telematics systems
- Electric and hybrid vehicle systems
Q & A
- What is the TJA1145T,118 used for?
The TJA1145T,118 is a high-speed CAN transceiver used to provide an interface between a CAN protocol controller and the physical two-wire CAN bus in automotive applications.
- What are the key compliance standards for the TJA1145T,118?
The TJA1145T,118 is compliant with ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-4 standards.
- What are the operating temperature ranges for the TJA1145T,118?
The operating temperature range is -40°C to 150°C.
- How does the TJA1145T,118 manage power consumption?
The TJA1145T,118 features very low power consumption in Standby and Sleep modes, with local and remote wake-up capabilities.
- What kind of ESD protection does the TJA1145T,118 offer?
The TJA1145T,118 offers ±8 kV ESD protection on CAN bus pins and ±6 kV ESD protection on BAT and WAKE pins.
- Can the TJA1145T,118 be used with different microcontroller voltages?
Yes, the VIO input allows for direct interfacing with 3.3 V to 5 V microcontrollers.
- What are the different operating modes of the TJA1145T,118?
The TJA1145T,118 supports Normal, Standby, Sleep, Overtemp, and Off operating modes.
- How does the TJA1145T,118 protect against bus transients?
The bus pins are short-circuit proof to ±58 V and protected against transients according to ISO 7637-3.
- What diagnostic features does the TJA1145T,118 offer?
The TJA1145T,118 includes features such as Transmit Data (TXD) dominant time-out function, overtemperature warning, undervoltage detection, and cold start diagnosis.
- Can the TJA1145T,118 be configured and controlled via SPI?
Yes, the TJA1145T,118 supports 16-, 24-, or 32-bit SPI for configuration, control, and diagnosis.
- Is the TJA1145T,118 suitable for use in automotive systems?
Yes, it is optimized for in-vehicle high-speed CAN communication and meets various automotive standards.
