Overview
The TJA1054AT/S900M,51 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, primarily intended for low-speed applications up to 125 kBd, particularly in passenger cars. It is an improved version of the TJA1054, offering enhanced ElectroStatic Discharge (ESD) protection and other significant improvements over its predecessors, such as the PCA82C252 and TJA1053.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC (Supply Voltage) | 4.75 | 5.25 | V | ||
| VCC (Supply Voltage for Forced Standby Mode) | 2.75 | 4.5 | V | ||
| ICC (Supply Current in Normal Operating Mode) | VTXD = VCC (recessive) | 4 | 7 | mA | |
| Operating Temperature | -40 | 150 | °C | ||
| Package Type | 14-SOIC (3.9mm Width) | ||||
| Mounting Type | Surface Mount | ||||
| Protocol | CAN | ||||
| Data Rate | Up to 125 kBd |
Key Features
- Optimized for in-car low-speed communication with a baud rate up to 125 kBd.
- Supports up to 32 nodes on the CAN bus.
- Compatible with unshielded bus wires.
- Very low ElectroMagnetic Emission (EME) due to built-in slope control function and good matching of CANL and CANH bus outputs.
- Good ElectroMagnetic Immunity (EMI) in normal operating mode and in low power modes.
- Fully integrated receiver filters.
- Transmit Data (TxD) dominant time-out function.
- Bus failure management, including single-wire transmission modes with ground offset voltages up to 1.5 V.
- Full wake-up capability during bus failures.
- Extended bus failure management, including short-circuit of the CANH bus line to VCC.
- Support for easy system fault diagnosis.
- Two-edge sensitive wake-up input signal via pin WAKE.
Applications
The TJA1054AT/S900M,51 is primarily used in automotive applications, particularly in passenger cars, for low-speed CAN communication. It is suitable for various in-vehicle networks that require reliable and fault-tolerant communication.
Q & A
- What is the primary application of the TJA1054AT/S900M,51?
The TJA1054AT/S900M,51 is primarily used in automotive applications, especially in passenger cars, for low-speed CAN communication.
- What is the maximum baud rate supported by the TJA1054AT/S900M,51?
The device supports a baud rate up to 125 kBd.
- How many nodes can be connected to the CAN bus using the TJA1054AT/S900M,51?
Up to 32 nodes can be connected to the CAN bus.
- What type of package does the TJA1054AT/S900M,51 come in?
The device comes in a 14-SOIC package with a 3.9mm width.
- What is the operating temperature range of the TJA1054AT/S900M,51?
The operating temperature range is from -40°C to 150°C.
- Does the TJA1054AT/S900M,51 support single-wire transmission modes?
- What are the key improvements of the TJA1054AT/S900M,51 over its predecessors?
The key improvements include very low ElectroMagnetic Emission (EME), good ElectroMagnetic Immunity (EMI), full wake-up capability during bus failures, extended bus failure management, and support for easy system fault diagnosis.
- Is the TJA1054AT/S900M,51 compatible with unshielded bus wires?
- Does the TJA1054AT/S900M,51 have integrated receiver filters?
- What is the purpose of the WAKE pin on the TJA1054AT/S900M,51?
The WAKE pin provides a two-edge sensitive wake-up input signal.
