Overview
The TJA1054AT/N,118 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 specifically designed for low-speed applications, typically up to 125 kBd, and is optimized for use in passenger cars. The TJA1054AT/N,118 offers significant improvements over earlier generations of CAN transceivers, including enhanced electromagnetic emission (EME) and immunity (EMI) characteristics, and advanced bus failure management capabilities.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | TJA1054AT/N,118 |
| Manufacturer | NXP USA Inc. |
| Protocol | CAN |
| Number of Drivers/Receivers | 1/1 |
| Duplex | Half |
| Data Rate | Up to 125 kBd |
| Voltage - Supply | 4.75 V ~ 5.25 V |
| Operating Temperature | -40°C ~ 150°C |
| Mounting Type | Surface Mount |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) |
Key Features
- Optimized for in-car low-speed communication with baud rates up to 125 kBd.
- Supports up to 32 nodes on the CAN bus.
- Very low electromagnetic emission (EME) due to built-in slope control and good matching of CANL and CANH bus outputs.
- Good electromagnetic immunity (EMI) in normal operating and low power modes.
- Fully integrated receiver filters and transmit data (TxD) dominant time-out function.
- Advanced bus failure management, including support for single-wire transmission modes with ground offset voltages up to 1.5 V.
- Full wake-up capability during bus failures and two-edge sensitive wake-up input signal via the WAKE pin.
- Extended bus failure management, including short-circuit of the CANH bus line to VCC and support for easy system fault diagnosis.
Applications
The TJA1054AT/N,118 is primarily used in automotive applications, particularly in passenger cars, for low-speed CAN communication. It is suitable for various in-vehicle network systems where reliable and fault-tolerant communication is crucial. Other potential applications include industrial automation, medical devices, and any system requiring robust CAN communication.
Q & A
- What is the primary function of the TJA1054AT/N,118?
The TJA1054AT/N,118 serves as the interface between the CAN protocol controller and the physical bus wires in a CAN network.
- What are the typical applications of the TJA1054AT/N,118?
It is primarily used in automotive applications, especially in passenger cars, and can also be used in industrial automation and medical devices.
- What is the maximum data rate supported by the TJA1054AT/N,118?
The device supports data rates up to 125 kBd.
- What are the key features of the TJA1054AT/N,118 in terms of electromagnetic characteristics?
The device has very low electromagnetic emission (EME) and good electromagnetic immunity (EMI), especially in low power modes.
- How does the TJA1054AT/N,118 handle bus failures?
The device supports advanced bus failure management, including single-wire transmission modes and detection of short-circuits on the CANH bus line to VCC.
- What is the operating temperature range of the TJA1054AT/N,118?
The device operates within a temperature range of -40°C to 150°C.
- What type of package does the TJA1054AT/N,118 come in?
The device is packaged in a 14-SOIC (0.154", 3.90mm Width) package.
- Can the TJA1054AT/N,118 be used in place of older CAN transceivers?
Yes, it is pin and functionally compatible with devices like the PCA82C252T and the TJA1053T.
- Does the TJA1054AT/N,118 support wake-up functionality?
Yes, it has full wake-up capability during bus failures and a two-edge sensitive wake-up input signal via the WAKE pin.
- What is the supply voltage range for the TJA1054AT/N,118?
The device operates with a supply voltage range of 4.75 V to 5.25 V.
