Overview
The TJA1050T, produced by NXP USA Inc., is a high-speed Controller Area Network (CAN) transceiver designed to interface between the CAN protocol controller and the physical bus. It is fully compatible with the ISO 11898 standard and is optimized for high-speed CAN applications. The device provides differential transmit and receive capabilities, ensuring robust communication in automotive and industrial environments. The TJA1050T is particularly noted for its low electromagnetic emission and high electromagnetic immunity, making it suitable for use in nodes that may be in a power-down situation in partially powered networks.
Key Specifications
| Parameter | Min | Max | Unit |
|---|---|---|---|
| VCC supply voltage | 4.75 | 5.25 | V |
| VCANH DC voltage at pin CANH | -27 | +40 | V |
| VCANL DC voltage at pin CANL | -27 | +40 | V |
| tPD(TXD-RXD) propagation delay TXD to RXD | -250 | - | ns |
| Tvj virtual junction temperature | -40 | +150 | °C |
| Vi(dif)(bus) differential bus input voltage dominant | 1.5 | 3 | V |
| Package | - | - | SO8 plastic small outline package; 8 leads; body width 3.9 mm |
Key Features
- Fully compatible with the ISO 11898 standard
- High speed up to 1 Mbaud
- Very low ElectroMagnetic Emission (EME)
- Differential receiver with wide common-mode range for high ElectroMagnetic Immunity (EMI)
- An unpowered node does not disturb the bus lines
- Transmit Data (TXD) dominant time-out function
- Silent mode capability
- Current-limiting circuit and thermal protection for the transmitter output stage
- Protection from automotive electrical transients according to ISO 7637
Applications
The TJA1050T is primarily intended for high-speed CAN applications in automotive and industrial environments. It is suitable for use in various nodes within a CAN network, including those that may be in a power-down situation in partially powered networks. This makes it ideal for applications such as vehicle networking, industrial automation, and other high-reliability communication systems.
Q & A
- What is the TJA1050T used for? The TJA1050T is used as an interface between the CAN protocol controller and the physical bus in high-speed CAN applications.
- What standard is the TJA1050T compatible with? The TJA1050T is fully compatible with the ISO 11898 standard.
- What is the maximum data rate of the TJA1050T? The TJA1050T supports data rates up to 1 Mbaud.
- How does the TJA1050T protect against electromagnetic interference? The TJA1050T features a differential receiver with a wide common-mode range for high ElectroMagnetic Immunity (EMI).
- What protection mechanisms does the TJA1050T have for the transmitter output stage? The TJA1050T includes a current-limiting circuit and thermal protection for the transmitter output stage.
- Can the TJA1050T operate in silent mode? Yes, the TJA1050T has a silent mode capability.
- How is the TJA1050T protected against automotive electrical transients? The TJA1050T is protected from automotive electrical transients according to ISO 7637.
- What is the supply voltage range for the TJA1050T? The supply voltage range for the TJA1050T is 4.75 V to 5.25 V.
- What is the package type of the TJA1050T? The TJA1050T is available in an SO8 plastic small outline package.
- What is the virtual junction temperature range for the TJA1050T? The virtual junction temperature range for the TJA1050T is -40°C to +150°C.
