Overview
The TJA1021TK/20/C,118 is a Local Interconnect Network (LIN) transceiver produced by NXP USA Inc. This component serves as the interface between the LIN commander/responder protocol controller and the physical bus in a LIN network. It is designed for use in in-vehicle sub-networks and is compliant with various LIN standards, including LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, SAE J2602, and ISO 17987-4:2016 (12 V).
Key Specifications
| Parameter | Description |
|---|---|
| Package Type | HVSON8 (8 terminals; body 3 × 3 × 0.85 mm) |
| Number of Pins | 8 |
| Protocol | LINbus |
| Baud Rate | Up to 20 kBd (normal slope variants) |
| Receiver Hysteresis | 175 mV |
| Operating Modes | Normal, Power-on, Sleep, and Standby modes |
| Electromagnetic Compatibility | High Electromagnetic Immunity (EMI) and low Electromagnetic Emission (EME) |
| Power Consumption | Very low in Sleep mode |
| Compliance | LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, SAE J2602, ISO 17987-4:2016 (12 V) |
Key Features
- LIN 2.x/ISO 17987-4:2016 (12 V)/SAE J2602 compliant
- Baud rates up to 20 kBd for normal slope variants and up to 10.4 kBd for low slope variants
- Very low Electromagnetic Emission (EME) and high Electromagnetic Immunity (EMI)
- Passive behavior in unpowered state
- Support for multiple operating modes: Normal, Power-on, Sleep, and Standby
- Pin-to-pin compatible with TJA1020 and MC33662(B)
- Internal termination resistor for LIN bus output pin
Applications
The TJA1021TK/20/C,118 is primarily used in in-vehicle sub-networks, such as those found in automotive systems. It is suitable for applications requiring LIN communication, including vehicle body control modules, door control units, and other automotive subsystems that need to communicate over a LIN bus.
Q & A
- What is the primary function of the TJA1021TK/20/C,118?
The TJA1021TK/20/C,118 serves as the interface between the LIN commander/responder protocol controller and the physical bus in a LIN network.
- What are the supported baud rates for the TJA1021TK/20/C,118?
The component supports baud rates up to 20 kBd for normal slope variants and up to 10.4 kBd for low slope variants.
- What are the key compliance standards for the TJA1021TK/20/C,118?
The component is compliant with LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, SAE J2602, and ISO 17987-4:2016 (12 V).
- What is the package type of the TJA1021TK/20/C,118?
The package type is HVSON8 with 8 terminals and a body size of 3 × 3 × 0.85 mm.
- How does the TJA1021TK/20/C,118 manage Electromagnetic Emission (EME) and Electromagnetic Immunity (EMI)?
The component is designed to minimize EME through wave shaping of the LIN output and offers high EMI.
- What are the operating modes supported by the TJA1021TK/20/C,118?
The component supports Normal, Power-on, Sleep, and Standby modes.
- Is the TJA1021TK/20/C,118 pin-to-pin compatible with other components?
Yes, it is pin-to-pin compatible with the TJA1020 and MC33662(B).
- How does the TJA1021TK/20/C,118 handle power consumption in different modes?
The component has very low power consumption in Sleep mode and reduced power consumption in failure modes.
- What is the purpose of the internal termination resistor in the TJA1021TK/20/C,118?
The internal termination resistor is used to pull the LIN bus output pin HIGH.
- In what types of applications is the TJA1021TK/20/C,118 typically used?
The component is typically used in in-vehicle sub-networks, such as vehicle body control modules and door control units.
