Overview
The TJA1054T/N1,512 is a fault-tolerant CAN (Controller Area Network) transceiver produced by NXP USA Inc. This device serves as the interface between the CAN protocol controller and the physical bus wires in a CAN network. It is primarily designed for low-speed applications, up to 125 kBd, and is commonly used in passenger cars. The TJA1054T/N1,512 provides differential receive and transmit capability and can switch to single-wire transmitter and/or receiver in error conditions, ensuring robust communication even in fault scenarios.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 4.75 | - | 5.25 | V |
| VBAT Battery Supply Voltage | 5.0 | - | 27 | V |
| ICC Supply Current (Normal Operating Mode) | 4 | 7 | 11 | mA |
| ICC Supply Current (Normal Operating Mode, VTXD = 0 V) | 10 | 17 | - | mA |
| Operating Temperature | -40 | - | 150 | °C |
| Package Type | - | - | 14-SOIC (0.154", 3.90mm Width) | - |
| Number of Drivers/Receivers | - | - | 1/1 | - |
| Mounting Type | - | - | Surface Mount | - |
Key Features
- Differential receive and transmit capability with the ability to switch to single-wire transmitter and/or receiver in error conditions.
- Fault-tolerant design, ensuring the device remains functional even in the presence of bus wire errors or other fault conditions.
- Pin and function compatibility with PCA82C252T and TJA1053T, allowing for easy replacement without losing functionality.
- Support for low power modes, including low current sleep mode and standby mode with wake-up via the bus lines.
- Thermal protection and bus pins short-circuit safe to battery and ground.
- Bus lines protected against transients in an automotive environment.
Applications
- Primarily intended for low-speed applications up to 125 kBd in passenger cars.
- Used in Advanced Driver Assistance Systems (ADAS) and Highly Automated Driving solutions.
- Employed in automotive connectivity, infotainment, and vehicle dynamics systems.
- Utilized in powertrain and vehicle control systems.
Q & A
- What is the primary function of the TJA1054T/N1,512?
The TJA1054T/N1,512 is a fault-tolerant CAN transceiver that acts as the interface between the CAN protocol controller and the physical bus wires in a CAN network.
- What are the key improvements of the TJA1054T over its predecessors?
The TJA1054T offers improvements such as fault-tolerant design, support for low power modes, and compatibility with PCA82C252T and TJA1053T.
- What is the operating temperature range of the TJA1054T/N1,512?
The operating temperature range is from -40°C to 150°C.
- What type of package does the TJA1054T/N1,512 come in?
The device comes in a 14-SOIC (0.154", 3.90mm Width) package.
- Is the TJA1054T/N1,512 still in production?
No, the TJA1054T/N1,512 is no longer manufactured. NXP recommends the TJA1055 as an alternative.
- What are the supply voltage ranges for VCC and VBAT?
VCC supply voltage ranges from 4.75 V to 5.25 V, and VBAT ranges from 5.0 V to 27 V.
- Does the TJA1054T/N1,512 support low power modes?
Yes, it supports low current sleep mode and standby mode with wake-up via the bus lines.
- What kind of protection does the TJA1054T/N1,512 offer?
The device offers thermal protection, bus pins short-circuit safe to battery and ground, and protection against transients in an automotive environment.
- In what applications is the TJA1054T/N1,512 commonly used?
It is commonly used in low-speed applications in passenger cars, ADAS, highly automated driving, automotive connectivity, infotainment, and vehicle dynamics systems.
- How does the TJA1054T/N1,512 handle error conditions?
The device can switch to single-wire transmitter and/or receiver in error conditions, ensuring continued functionality.
