UJA1135HW/3V3Y

Overview

The UJA1135HW/3V3Y is an automotive-grade System Basis Chip (SBC) from NXP, designed for in-vehicle networking. It integrates a fully automatic SMPS Buck-Boost converter, a High-Speed CAN transceiver, and up to two LIN transceivers. The device operates on a supply voltage of 2V to 28V with a quiescent current of 2.8mA. It supports output voltages ranging from 3.3V to 5V and functions within a temperature range of -40°C to 125°C. Packaged in a 48-HTQFP (10x10) with exposed pad, it meets AEC-Q100 standards.

Feature Summary

• Integrates a fully automatic SMPS Buck-Boost converter for efficient power management
• Combines High-Speed CAN transceiver with support for up to two LIN transceivers
• Designed specifically for robust automotive applications requiring high reliability

Applications

• Automotive body control modules
• In-vehicle networking systems
• Power distribution units

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix '3V3Y' matches the required output voltage configuration. Check for AEC-Q100 certification documentation to ensure automotive grade compliance. Review the latest datasheet for any updates regarding pin compatibility or thermal characteristics before integration into final designs.

Selection Notes

Select this SBC when a single chip solution is needed for CAN and dual-LIN communication alongside integrated power regulation. Ensure the input voltage range of 2V to 28V aligns with the vehicle's electrical system. Verify that the 48-HTQFP package fits the PCB layout constraints. Consider the automatic SMPS feature for improved efficiency compared to linear regulators in high-voltage drop scenarios.

Part Context

This component belongs to the UJA113x series of System Basis Chips from NXP Semiconductors. The series is engineered to simplify automotive electronic design by combining power management and communication interfaces. It serves as a central node controller, reducing board space and component count while maintaining high performance and reliability standards for modern vehicle architectures.

Replacement Considerations

The UJA1135AHW/3/0Y is listed as a manufacturer-recommended alternative. Verify functional equivalence and pin compatibility before substitution. Note that the original part status is discontinued; confirm availability and lead times for the replacement.