Overview
The TJA1054T/N1,518 is a fault-tolerant CAN (Controller Area Network) transceiver produced by NXP USA Inc. This device serves as the interface between the protocol controller and the physical bus wires in a CAN network. It is primarily designed for low-speed applications, particularly in passenger cars, with data rates up to 125 kBd. The TJA1054T provides differential receive and transmit capabilities and can switch to single-wire transmitter and/or receiver in error conditions, ensuring robust and reliable communication even under fault scenarios.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC supply voltage | 4.75 | 5.25 | V | ||
| VCC(stb) supply voltage for forced standby mode (fail-safe) | 2.75 | 4.5 | V | ||
| ICC supply current (normal operating mode; VTXD = VCC) | 4 | 7 | 11 | mA | |
| ICC supply current (normal operating mode; VTXD = 0 V; no load) | 10 | 17 | mA | ||
| IO(CANL) output current on pin CANL (normal operating mode) | VCANL = 14 V; VTXD = 0 V | 45 | 70 | 100 | mA |
| Tvj virtual junction temperature | -40 | 150 | °C | ||
| Bus line output rise time (10% to 90%) | C1 = 10 nF | 0.6 | μs | ||
| Bus line output fall time (10% to 90%) | C1 = 1 nF | 0.3 | μs |
Key Features
- Fault-Tolerant Operation: The device can switch to single-wire transmitter and/or receiver in error conditions, ensuring continued operation under fault scenarios.
- Differential Receive and Transmit Capability: Provides robust communication over the CAN bus.
- Low Power Modes: Supports low power modes to reduce power consumption when not actively transmitting or receiving data.
- Wake-Up and Standby Control: Includes wake-up and standby control features to manage power consumption and system wake-up.
- Temperature Protection: Built-in temperature protection to prevent damage from overheating.
- Pinning Compatibility: Pin and function compatible with PCA82C252T and TJA1053T, allowing for easy replacement and upgrade.
Applications
The TJA1054T is primarily intended for use in automotive systems, particularly in passenger cars, where it serves as the interface between the protocol controller and the physical CAN bus wires. It is suitable for low-speed applications up to 125 kBd and is used in various automotive control systems that require reliable and fault-tolerant communication.
Q & A
- What is the primary function of the TJA1054T?
The TJA1054T is a fault-tolerant CAN transceiver that serves as the interface between the protocol controller and the physical CAN bus wires.
- What are the key features of the TJA1054T?
Key features include fault-tolerant operation, differential receive and transmit capability, low power modes, wake-up and standby control, and temperature protection.
- What is the maximum data rate supported by the TJA1054T?
The TJA1054T supports data rates up to 125 kBd.
- Is the TJA1054T compatible with other NXP CAN transceivers?
Yes, it is pin and function compatible with PCA82C252T and TJA1053T.
- What is the operating temperature range of the TJA1054T?
The operating temperature range is from -40°C to +150°C.
- What type of package is the TJA1054T available in?
The TJA1054T is available in a SO14 plastic small outline package with 14 leads.
- Does the TJA1054T support low power modes?
Yes, it supports low power modes to reduce power consumption when not actively transmitting or receiving data.
- What is the purpose of the wake-up and standby control features?
These features are used to manage power consumption and system wake-up.
- Is the TJA1054T still in production?
No, the TJA1054T is no longer in production, and NXP recommends the TJA1055 as a replacement.
- Where can I find more detailed specifications and documentation for the TJA1054T?
More detailed specifications and documentation can be found in the datasheet available on NXP's official website and other electronics component databases like Digi-Key.
