UJA1075ATW/5V0,112

Specialized Overview

The UJA1075ATW/5V0,112 is a high-speed CAN/LIN core System Basis Chip (SBC) from NXP Semiconductors. It integrates a high-speed CAN transceiver compliant with ISO 11898-2 and ISO 11898-5 standards, and a LIN transceiver supporting LIN 2.0 through 2.2A. The device includes a scalable 5 V main voltage regulator (V1) delivering up to 250 mA for microcontroller supply, and a separate 5 V voltage regulator (V2) dedicated to the on-board CAN transceiver. Communication with the host microcontroller is facilitated via a full-duplex Serial Peripheral Interface (SPI). The component operates within a battery voltage range of 4.5 V to 28 V and features an HTSSOP32 package.

Specialized Feature Summary

• Integrates high-speed CAN and LIN transceivers with enhanced electromagnetic compatibility performance
• Provides independent voltage regulation for both the microcontroller and the CAN bus interface
• Supports advanced low-power modes including Standby and Sleep with wake-up detection capabilities
• Includes diagnostic features such as undervoltage warnings, overtemperature shutdown, and limp home output

Specialized Applications

• Electronic Control Units (ECU) in automotive applications
• Network applications controlling power and sensor peripherals
• Microcontroller systems requiring integrated CAN/LIN communication and power management

Specialized Procurement Notes

Verify the specific ordering suffix against the manufacturer's current product data sheet to confirm regulatory compliance and feature set. Ensure the selected variant matches the required voltage regulator output and watchdog configuration for the target application design.

Specialized Selection Notes

Select this component when a single-chip solution for CAN and LIN communication combined with power management is required. Consider the 5 V regulator version if the microcontroller requires a 5 V supply. Verify that the HTSSOP32 package dimensions fit the printed circuit board layout constraints.

Specialized Part Context

The UJA1075A series replaces discrete components commonly found in Electronic Control Units. It is designed to work in conjunction with microcontrollers incorporating a CAN controller to ensure controlled system start-up behavior. The family offers various voltage regulator options and watchdog configurations to suit different automotive network requirements.

Specialized Replacement Considerations

Direct replacements within the UJA1075A family include variants with different voltage regulators (e.g., 3.3 V versions like UJA1075ATW/3V0) or those lacking the watchdog feature. Cross-family comparisons should be conducted carefully due to differences in pinouts and register maps.