TJA1021BT/0Z

Drivers, Receivers, Transceivers Overview

The TJA1021BT/0Z is a LIN transceiver designed for in-vehicle sub-networks, compliant with LIN 2.0 through 2.2A, SAE J2602, and ISO 17987-4:2016 (12 V). It supports baud rates up to 20 kBd and operates within a battery supply voltage range of 5.5 V to 27 V. The device features optimized slew rate and wave shaping to minimize electromagnetic emission while providing high immunity. It includes an integrated termination resistor for responder applications and offers very low current consumption in Sleep mode, typically 7 μA at 12 V. The component is available in SO8 packages and is pin-to-pin compatible with the TJA1020 and MC33662(B).

Drivers, Receivers, Transceivers Feature Summary

• Compliant with LIN 2.x, SAE J2602, and ISO 17987-4:2016 standards.
• Optimized wave shaping minimizes electromagnetic emission.
• Integrated termination resistor for LIN responder applications.
• Supports local and remote wake-up events with source recognition.

Drivers, Receivers, Transceivers Applications

• In-vehicle Local Interconnect Network (LIN) sub-networks.
• Automotive commander/responder protocol controller interfaces.
• Systems requiring low power management and high EMI immunity.

Drivers, Receivers, Transceivers Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm compliance with automotive qualification standards such as AEC-Q100 if required by the design specification. Ensure the selected variant aligns with the intended baud rate requirements of the target application network.

Drivers, Receivers, Transceivers Selection Notes

Select the TJA1021BT/0Z when a normal slope variant supporting speeds up to 20 kBd is required. This part is suitable for both commander and responder roles, utilizing the internal termination resistor for the latter. Consider the SO8 package dimensions and thermal characteristics during PCB layout planning to ensure adequate heat dissipation.

Drivers, Receivers, Transceivers Part Context

The TJA1021 series serves as the physical layer interface between LIN protocol controllers and the bus. The B variant specifically denotes the normal slope configuration capable of higher transmission speeds compared to the low slope /10 variants. It maintains compatibility with legacy designs using the TJA1020 while offering enhanced EMC performance.

Drivers, Receivers, Transceivers Replacement Considerations

The TJA1021T/20/C,118 is a pin-compatible alternative within the same product family. Other potential substitutes include the MC33662(B), which shares similar functionality but may require verification of specific electrical parameter alignment.