Overview
The TJA1040T/N1,518 is a high-speed CAN (Controller Area Network) transceiver produced by NXP USA Inc. This component serves as the interface between the CAN protocol controller and the physical bus, making it ideal for high-speed applications up to 1 MBaud, particularly in passenger cars. It is designed to be pin-compatible with the TJA1050 and offers excellent electromagnetic compatibility (EMC) performance. The TJA1040T features a very low-current standby mode with remote wake-up capability, making it an excellent choice for nodes that can be in power-down or standby mode in partially powered networks.
Key Specifications
| Parameter | Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| VCC supply voltage | Operating range | 4.75 | - | 5.25 | V |
| ICC supply current | Standby mode | 5 | 10 | 15 | µA |
| ICC supply current | Normal mode, recessive; VTXD = VCC/2 | 2.5 | - | 10 | mA |
| VCANH DC voltage on pin CANH | 0 < VCC < 5.25 V; no time limit | -27 | - | 40 | V |
| VCANL DC voltage on pin CANL | 0 < VCC < 5.25 V; no time limit | -27 | - | 40 | V |
| VSPLIT DC voltage on pin SPLIT | 0 < VCC < 5.25 V; no time limit | -27 | - | 40 | V |
| tPD(TXD-RXD) propagation delay TXD to RXD | VSTB = 0 V | 40 | - | 255 | ns |
| Tvj virtual junction temperature | - | -40 | - | 150 | °C |
| Package | - | - | - | SO8 plastic small outline package; 8 leads; 1.27 mm pitch; 4.9 mm x 3.9 mm x 1.75 mm body | - |
Key Features
- Fully compatible with the ISO 11898 standard.
- High-speed operation up to 1 MBaud.
- Very low-current standby mode with remote wake-up capability via the bus.
- Very low ElectroMagnetic Emission (EME) and high ElectroMagnetic Immunity (EMI).
- Differential receiver with high common-mode range.
- Transceiver disengages from the bus in an unpowered state (zero load).
- Input levels compatible with 3.3 V and 5 V devices.
- Voltage source for stabilizing the recessive bus level if split termination is used.
- At least 110 nodes can be connected.
- Transmit Data (TXD) dominant time-out function.
- Bus pins protected against transients.
Applications
The TJA1040T is primarily intended for high-speed applications in passenger cars. It is suitable for use in Controller Area Network (CAN) systems that require reliable and high-speed data transmission. The device is particularly useful in nodes that can be in power-down or standby mode in partially powered networks, making it an excellent choice for automotive and other high-reliability applications.
Q & A
- What is the primary function of the TJA1040T?
The TJA1040T is a high-speed CAN transceiver that serves as the interface between the CAN protocol controller and the physical bus. - What is the maximum data rate supported by the TJA1040T?
The TJA1040T supports data rates up to 1 MBaud. - What are the key features of the TJA1040T's standby mode?
The standby mode features very low current consumption and remote wake-up capability via the bus. - Is the TJA1040T compatible with the ISO 11898 standard?
Yes, the TJA1040T is fully compatible with the ISO 11898 standard. - What is the operating voltage range of the TJA1040T?
The operating voltage range is from 4.75 V to 5.25 V. - How many nodes can be connected using the TJA1040T?
At least 110 nodes can be connected. - What is the package type of the TJA1040T?
The TJA1040T comes in an SO8 plastic small outline package with 8 leads and a 1.27 mm pitch. - Is the TJA1040T RoHS compliant?
Yes, the TJA1040T is RoHS compliant. - What is the virtual junction temperature range of the TJA1040T?
The virtual junction temperature range is from -40°C to 150°C. - What kind of protection does the TJA1040T offer for bus pins?
The bus pins are protected against transients.
