Overview
The TJA1040T/N1,112 is a high-speed Controller Area Network (CAN) transceiver produced by NXP USA Inc. This component serves as the interface between the CAN protocol controller and the physical bus, making it essential for high-speed applications in automotive systems, particularly in passenger cars. It is fully compatible with the ISO 11898 standard and supports data rates up to 1 MBaud. The TJA1040T is designed to offer low-current standby mode with remote wake-up capability, enhancing its suitability for nodes that can be in power-down or standby mode in partially powered networks.
Key Specifications
| Parameter | Conditions | Min. | 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 | 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 |
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 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.
- Supports up to 110 nodes on the bus.
- Transmit Data (TXD) dominant time-out function.
- Bus pins protected against transients).
Applications
The TJA1040T/N1,112 is primarily used in high-speed automotive applications, including:
- Advanced Driver Assistance Systems (ADAS).
- Highly Automated Driving systems.
- Connectivity and Infotainment systems).
- Powertrain and Vehicle Dynamics systems).
Q & A
- What is the primary function of the TJA1040T/N1,112?
The TJA1040T/N1,112 serves as the interface between the CAN protocol controller and the physical bus, enabling high-speed CAN communication.
- What is the maximum data rate supported by the TJA1040T/N1,112?
The TJA1040T/N1,112 supports data rates up to 1 MBaud.
- Is the TJA1040T/N1,112 compatible with industry standards?
Yes, it is fully compatible with the ISO 11898 standard.
- What is the operating supply voltage range for the TJA1040T/N1,112?
The operating supply voltage range is from 4.75 V to 5.25 V.
- What is the standby current consumption of the TJA1040T/N1,112?
The standby current consumption is between 5 µA and 15 µA.
- Does the TJA1040T/N1,112 support remote wake-up?
Yes, it supports remote wake-up capability via the bus.
- How many nodes can be connected using the TJA1040T/N1,112?
It supports up to 110 nodes on the bus.
- What is the propagation delay from TXD to RXD?
The propagation delay from TXD to RXD is between 40 ns and 255 ns.
- Is the TJA1040T/N1,112 protected against transients?
Yes, the bus pins are protected against transients.
- What are the typical applications of the TJA1040T/N1,112?
It is used in ADAS, Highly Automated Driving, Connectivity, Infotainment, Powertrain, and Vehicle Dynamics systems.
