UJA1169ATK/F/3

Specialized Overview

The UJA1169ATK/F/3 is a mini high-speed CAN System Basis Chip (SBC) from NXP Semiconductors. It integrates an ISO 11898-2:201x compliant HS-CAN transceiver supporting CAN FD active communication up to 2 Mbit/s, and a scalable 3.3 V, 250 mA low-drop voltage regulator (V1). The device includes a watchdog timer, SPI interface, and partial networking capabilities with CAN FD-passive support. It operates in Standby and Sleep modes with very low current consumption and features ±8 kV HBM ESD protection on CAN-bus pins. The component is housed in a leadless HVSON20 package.

Specialized Feature Summary

• Integrates a high-speed CAN transceiver with CAN FD passive support for partial networking
• Includes a 3.3 V, 250 mA scalable supply for microcontroller power
• Features autonomous bus biasing and selective wake-up functionality
• Provides system diagnostics via LIMP output and overtemperature warning

Specialized Applications

• Automotive electronic control units requiring CAN FD communication
• Networks supporting both classic CAN and CAN FD protocols
• Applications necessitating low-power standby and sleep modes

Specialized Procurement Notes

Verify the specific ordering suffix /F/3Z against the manufacturer's latest documentation to confirm the presence of partial networking and the 3.3 V regulator configuration. Ensure compatibility with the required microcontroller supply voltage and thermal management requirements using an external PNP transistor if necessary.

Specialized Selection Notes

Select this variant when a 3.3 V microcontroller supply is required alongside CAN FD passive partial networking. Compare with the UJA1169ATK/F for 5 V applications or the UJA1169ATK/3Z for non-partial networking scenarios. Confirm that the HVSON20 package footprint aligns with the PCB design constraints.

Specialized Part Context

The UJA1169A family consists of six variants differentiated by their voltage regulators and partial networking support. The UJA1169ATK/F/3 specifically combines the 3.3 V regulator (V1), the internal 5 V CAN supply (V2), and the partial networking feature (/F). This distinguishes it from the /X variants which offer an off-board sensor supply (VEXT) instead of V2.

Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.