TJA1128DTK/1Z

Specialized Overview

The TJA1128DTK/1Z is a LIN Mini System Basis Chip (SBC) from NXP Semiconductors, designed for road vehicles with nominal 12 V systems. It integrates a LIN transceiver compliant with ISO 17987-4:2016 and SAE J2602, supporting baud rates up to 20 kBd. The device includes a low-dropout voltage regulator delivering up to 85 mA at 3.3 V or 5.0 V output. Key features include two WAKE inputs, a window watchdog, and a high-voltage multipurpose output. It operates within a battery range of 5.0 V to 28 V and supports STANDBY and SLEEP modes with typical current consumption of 22 µA and 14 µA respectively. The component is housed in a 14-pin HVSON package.

Specialized Feature Summary

• Integrates a LIN transceiver compliant with ISO 17987-4:2016, LIN 2.x, and SAE J2602 standards.
• Includes a low-dropout voltage regulator capable of supplying up to 85 mA to a microcontroller.
• Features configurable local wake-up via two dedicated pins and remote wake-up capability.
• Provides a window watchdog with selectable periods and autonomous mode support.

Specialized Applications

• Automotive body control modules
• Sensor and actuator nodes in Local Interconnect Network (LIN) bus systems
• Low-power electronic control units requiring integrated power management

Specialized Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm internal configuration parameters such as LDO voltage, number of wake inputs, and watchdog presence. Ensure compatibility with the target application's SPI interface requirements during the CONFIG mode initialization phase.

Specialized Selection Notes

Select this component when a combined LIN communication and power regulation solution is required for automotive applications. Consider the specific factory preset configuration associated with the 'D' variant regarding LDO output voltage and wake input availability. Verify that the 14-pin HVSON package fits the PCB layout constraints and thermal requirements.

Specialized Part Context

This part belongs to the TJA1128 family of LIN Mini System Basis Chips. Variants within the family differ by factory-set configurations, including LDO voltage options (3.3 V or 5.0 V), the presence of one or two WAKE inputs, and watchdog integration. The 'D' suffix indicates a specific factory preset configuration defined in the product data sheet.

Specialized Replacement Considerations

Consult the official TJA1128 datasheet for listed compatible variants within the same family. Substitution requires matching the specific factory preset configuration, particularly the LDO voltage and wake input count, to ensure functional equivalence without hardware redesign.