UJA1169TK/XZ

Specialized Overview

The UJA1169TK/XZ 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 an integrated 5 V scalable supply (V1) with 250 mA output current capability for microcontroller power. The device includes a watchdog timer, Serial Peripheral Interface (SPI), and LIMP output pin. It features very low-current Standby and Sleep modes with bus and local wake-up capabilities. The UJA1169TK/X variant specifically provides a protected 5 V off-board sensor supply (VEXT) with short-circuit protection to battery, ground, and negative voltages down to -18 V.

Specialized Feature Summary

• Integrates a high-speed CAN transceiver with CAN FD support up to 2 Mbit/s
• Provides a 5 V microcontroller supply (V1) with 250 mA output capability
• Includes a protected 5 V off-board sensor supply (VEXT) for external loads
• Features autonomous bus biasing and selective wake-up functionality

Specialized Applications

• Automotive center stack modules
• Climate control modules
• Electronic steering column modules
• Body control computers

Specialized Procurement Notes

Verify the specific ordering suffix Z indicates tape and reel packaging configuration when sourcing components. Confirm that the TK/X designation aligns with the required 5 V regulator (V1) and protected off-board supply (VEXT) specifications for your design. Ensure compatibility with the HVSON20 package dimensions during PCB layout.

Specialized Selection Notes

Select this component if your application requires a dedicated 5 V supply for off-board sensors or loads alongside the main microcontroller power. The TK/X variant is distinct from standard TK models by providing the VEXT pin instead of the internal V2 supply. Verify that the 250 mA V1 current rating meets the peak load requirements of the connected microcontroller.

Specialized Part Context

The UJA1169 family consists of six variants designed for automotive applications. The UJA1169TK/XZ belongs to the group featuring the 5 V V1 regulator and the protected VEXT supply. Other variants in the series include those with 3.3 V regulators or internal V2 supplies, offering flexibility for different system architectures and voltage requirements.

Specialized Replacement Considerations

Direct replacements within the same family include UJA1169TK/X/FZ if partial networking support is required. For designs not requiring the VEXT supply, the UJA1169TKZ may be considered, though it lacks the protected off-board sensor supply feature.