Overview
The TJA1041AT/VM,512 is a high-speed CAN (Controller Area Network) transceiver produced by NXP USA Inc. It provides an advanced interface between the protocol controller and the physical bus in a CAN node, primarily intended for automotive high-speed CAN applications up to 1 Mbit/s. The transceiver is fully compatible with the ISO 11898 standard and offers excellent ElectroMagnetic Compatibility (EMC) performance, low power consumption, and passive behavior when the supply voltage is off.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package Type | SO14 plastic small outline package | SOT108-1 |
| Number of Leads | 14 | |
| Body Width | 3.9 mm | |
| Supply Voltage (VCC) | 0 V < VCC < 5.25 V | |
| Electrostatic Discharge Voltage (HBM) | -6 to +6 kV (pins CANH, CANL, SPLIT) | |
| Propagation Delay (TXD to RXD) | 40 - 255 ns | |
| Virtual Junction Temperature | -40 to +150 °C | |
| Compliance | EU RoHS Compliant, Lead Free (Pb), Halogen Free (Cl+Br) |
Key Features
- Differential transmit and receive capability to the CAN bus and controller.
- Full compatibility with the ISO 11898 standard.
- Excellent ElectroMagnetic Compatibility (EMC) performance.
- Very low power consumption and passive behavior when supply voltage is off.
- Advanced power management with local and remote wake-up, wake-up source recognition, and power supply control in the rest of the node.
- Several protection and diagnosis functions including short circuits of the bus lines and first battery connection.
- Built-in I/O-level adapter for scaling I/O levels of the transceiver.
- Operating modes include normal, listen-only, standby, go-to-sleep, and sleep modes.
- Common-mode stabilization output (pin SPLIT) to reduce common-mode voltage steps.
Applications
The TJA1041AT/VM,512 is primarily designed for automotive high-speed CAN applications. It is suitable for use in various automotive systems that require reliable and efficient CAN communication, such as engine control units, transmission control units, and other vehicle network nodes.
Q & A
- What is the primary function of the TJA1041AT/VM,512?
The primary function is to provide the CAN physical layer as described in the ISO 11898 standard, acting as an interface between the protocol controller and the physical bus in a CAN node.
- What are the key operating modes of the TJA1041AT/VM,512?
The transceiver can operate in five modes: normal, listen-only, standby, go-to-sleep, and sleep modes, each with specific features and power management capabilities.
- What is the significance of the SPLIT pin in the TJA1041AT/VM,512?
The SPLIT pin provides a stabilized 0.5VCC DC voltage in normal and listen-only modes, helping to reduce common-mode voltage steps and improve EMC performance.
- Is the TJA1041AT/VM,512 compliant with environmental regulations?
Yes, it is EU RoHS Compliant, Lead Free (Pb), and Halogen Free (Cl+Br).
- What is the maximum data rate supported by the TJA1041AT/VM,512?
The transceiver supports high-speed CAN applications up to 1 Mbit/s.
- How does the TJA1041AT/VM,512 manage power consumption?
The transceiver features low power consumption and advanced power management, including local and remote wake-up, wake-up source recognition, and control of the power supply in the rest of the node.
- What kind of protection and diagnosis functions does the TJA1041AT/VM,512 offer?
The transceiver includes several protection and diagnosis functions, such as short circuits of the bus lines and first battery connection, as well as error and power-on indication outputs.
- What is the role of the I/O-level adapter in the TJA1041AT/VM,512?
The built-in I/O-level adapter scales the I/O levels of the transceiver using the supply voltage of the controller, ensuring compatibility with different voltage levels.
- What are the typical applications of the TJA1041AT/VM,512?
The transceiver is primarily used in automotive high-speed CAN applications, such as engine control units, transmission control units, and other vehicle network nodes.
- How does the TJA1041AT/VM,512 ensure ElectroMagnetic Compatibility (EMC)?
The transceiver offers excellent EMC performance, which is enhanced by features like the common-mode stabilization output and passive behavior when the supply voltage is off.
