UJA1076ATW/5V0,112

Specialized Overview

The UJA1076ATW/5V0,112 is a high-speed CAN 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, alongside a scalable 5 V voltage regulator delivering up to 250 mA for microcontroller supply. The device features a dedicated 5 V regulator for the CAN transceiver, a 16-bit full-duplex Serial Peripheral Interface (SPI), two local wake-up input ports, and a limp home output port. It operates within a battery voltage range of 4.5 V to 28 V and supports an operating temperature range from -40 °C to +150 °C. The component utilizes an HTSSOP32 package.

Specialized Feature Summary

• Integrates a high-speed CAN transceiver with enhanced EMC performance and ±8 kV ESD protection on bus pins
• Provides a scalable 5 V main voltage regulator capable of delivering up to 250 mA with undervoltage warning and reset capabilities
• Includes a dedicated low-dropout voltage regulator for the CAN transceiver to improve electromagnetic compatibility
• Features a 16-bit SPI interface for configuration, control, and detailed status reporting at system and sub-system levels

Specialized Applications

• Electronic Control Units (ECU) requiring integrated power management and CAN communication
• Automotive networking applications controlling power and sensor peripherals via high-speed CAN
• Systems utilizing remote flash programming over the CAN bus

Specialized Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm regulatory compliance and package details. Confirm that the 5 V regulator version matches the target microcontroller requirements. Ensure the HTSSOP32 package dimensions align with the printed circuit board layout constraints. Check for any RoHS or environmental compliance declarations relevant to the manufacturing batch.

Specialized Selection Notes

Select this component when a single-chip solution combining a high-speed CAN transceiver and a 5 V power supply is required. The device is suitable for designs needing independent regulation for the microcontroller and the CAN transceiver to optimize EMC. Consider the external PNP transistor option if higher current distribution or thermal management beyond the internal regulator limits is necessary for the application.

Specialized Part Context

This part belongs to the UJA1076A family of high-speed CAN core system basis chips. Variants in this series differ primarily by the output voltage of the main regulator (3.3 V or 5 V) and the inclusion of an advanced independent watchdog function. The UJA1076ATW/5V0,112 specifically denotes the 5 V regulator version without the watchdog feature, packaged in HTSSOP32.

Specialized Replacement Considerations

Direct replacements include other UJA1076A variants such as UJA1076ATW/3V0,112 for 3.3 V systems or UJA1076ATW/5V0WD,112 if a watchdog is required. Downward compatible CAN transceivers like the TJA1042 can be used if only the transceiver functionality is needed, though they lack the integrated SBC power management features.