UJA1075ATW/3/2Z

Power Management - Specialized Overview

The UJA1075ATW/3/2Z is a high-speed CAN/LIN core System Basis Chip (SBC) designed for automotive electronic control units. It integrates a high-speed CAN transceiver compliant with ISO 11898-2 and ISO 11898-5, alongside a LIN transceiver supporting LIN 2.1 standards. The device features an integrated 250 mA voltage regulator for microcontroller power supply and a separate regulator for the CAN transceiver. It includes a full-duplex Serial Peripheral Interface (SPI) for communication, two local wake-up inputs, and a limp-home output port. The component operates within a standard automotive temperature range and utilizes a 32-HTSSOP package.

Power Management - Specialized Feature Summary

• Integrates high-speed CAN and LIN transceivers with independent voltage regulation for system stability
• Includes advanced watchdog timer functionality to enhance system safety and reliability
• Provides robust electromagnetic compatibility and electrostatic discharge protection on bus pins

Power Management - Specialized Applications

• Automotive Electronic Control Unit (ECU) design
• High-speed CAN network interface implementation
• LIN sub-bus controller applications
• Power management for microcontrollers in vehicle systems

Power Management - Specialized Procurement Notes

Verify current manufacturing status as this specific part number may be obsolete or superseded by newer variants such as the UJA1075ATW/3/2Z or similar suffixes. Confirm availability through authorized distributors and check for active substitute part numbers if production has ceased. Ensure the selected variant matches the required voltage regulator output and watchdog configuration for your specific application design.

Power Management - Specialized Selection Notes

Select this component when a unified solution for CAN/LIN communication and power management is required. It is suitable for designs needing integrated ESD protection and simplified PCB layout. Consider the 250 mA regulator capacity and SPI interface requirements. Verify that the package type and pinout align with the target board design and thermal constraints.

Power Management - Specialized Part Context

This SBC belongs to NXP's UJA1075A family of automotive interface chips. It replaces discrete components typically found in ECUs by combining transceivers, regulators, and safety features into a single package. The family supports various configurations differing in voltage outputs and watchdog implementations, tailored for different automotive network architectures.

Power Management - Specialized Replacement Considerations

Check for direct substitutes listed by NXP, such as updated revisions or compatible parts within the UJA1075 series. Verify pin-to-pin compatibility and electrical parameter alignment before substitution. Consult official documentation for any changes in functionality or recommended design modifications when replacing obsolete inventory.