Overview
The TJA1054T/N,112 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 wires of the CAN bus. It is primarily designed for low-speed applications, up to 125 kBd, particularly in passenger cars. The TJA1054T/N,112 offers differential transmit and receive capabilities and can switch to single-wire transmitter and/or receiver in error conditions, enhancing its fault tolerance and reliability.
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) | 10 | 17 | mA | ||
| IO(CANL) output current on pin CANL (normal operating mode) | VCANL = 14 V; VTXD = 0 V | 45 | 70 | 100 | mA |
| Vd(CANH)(sc) detection voltage for short-circuit to battery voltage on pin CANH | Normal operating mode; VCC = 5 V | 1.5 | 1.7 | 1.85 | V |
| Operating Temperature | -40 | 150 | °C | ||
| Package / Case | 14-SOIC (0.154", 3.90mm Width) |
Key Features
- Differential transmit and receive capability to the CAN bus.
- Switches to single-wire transmitter and/or receiver in error conditions.
- Very low Electromagnetic Emission (EME) due to good matching of the CANL and CANH output signals.
- Good Electromagnetic Interference (EMI) performance, especially in low power modes.
- 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 TJA1054T/N,112 is primarily intended for use in low-speed CAN applications, particularly in the automotive sector. It is suitable for passenger cars and other vehicles where reliable and fault-tolerant CAN communication is essential.
Q & A
- What is the primary function of the TJA1054T/N,112?
The TJA1054T/N,112 serves as the interface between the CAN protocol controller and the physical wires of the CAN bus.
- What are the typical applications of the TJA1054T/N,112?
It is primarily used in low-speed CAN applications, especially in passenger cars.
- What are the key features of the TJA1054T/N,112?
Key features include differential transmit and receive capability, fault tolerance, low EME, good EMI performance, full wake-up capability during bus failures, and extended bus failure management.
- What is the operating temperature range of the TJA1054T/N,112?
The operating temperature range is from -40°C to 150°C.
- What is the supply voltage range for the TJA1054T/N,112?
The supply voltage range is from 4.75 V to 5.25 V.
- What package type is the TJA1054T/N,112 available in?
The device is available in a 14-SOIC package.
- How does the TJA1054T/N,112 handle bus failures?
The device has extended bus failure management, including short-circuit of the CANH bus line to VCC and full wake-up capability during bus failures.
- Is the TJA1054T/N,112 compatible with other NXP devices?
Yes, it is pin and functionally compatible with the PCA82C252T and the TJA1053T.
- What are the benefits of using the TJA1054T/N,112 in terms of EMI and EME?
The device offers very low EME and good EMI performance, especially in low power modes.
- How does the TJA1054T/N,112 support system fault diagnosis?
The device supports easy system fault diagnosis through its extended bus failure management features.
