UJA1169TK/X/FZ

Specialized Overview

The UJA1169TK/X/FZ 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 partial networking with CAN FD passive support. The device features a scalable 5 V, 250 mA low-drop voltage regulator (V1) for microcontroller supply and a protected 5 V, 100 mA off-board sensor supply (VEXT). It includes a watchdog timer, SPI interface, and LIMP output pin. The component operates in very low-current Standby and Sleep modes with bus and local wake-up capabilities.

Specialized Feature Summary

• Integrates a high-speed CAN transceiver with CAN FD active communication up to 2 Mbit/s and selective wake-up functionality.
• Provides a scalable 5 V/3.3 V microcontroller supply (V1) and a protected 5 V off-board sensor supply (VEXT).
• Supports very low-current Standby and Sleep modes with remote and local wake-up capabilities.
• Includes system control features such as a watchdog timer, SPI interface, and dedicated limp-home output.

Specialized Applications

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

Specialized Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure compatibility with required voltage regulators and feature sets. Confirm package type and compliance standards prior to integration into automotive designs.

Specialized Selection Notes

Select this variant when a 5 V microcontroller supply and a protected off-board sensor supply are required. Ensure the design supports the necessary external PNP transistor for thermal scaling of the main regulator. Verify that the application utilizes CAN FD passive features if partial networking is needed.

Specialized Part Context

This component belongs to the UJA1169 family of mini high-speed CAN system basis chips. Variants within the family differ primarily in their integrated voltage regulator configurations, such as the presence of an internal CAN supply (V2) versus an off-board sensor supply (VEXT), and the inclusion of partial networking capabilities.

Specialized Replacement Considerations

Direct substitutes include other UJA1169 variants like UJA1169TK/FZ or UJA1169TK/XZ, depending on whether the VEXT supply or V2 supply is required. Cross-referencing with UJA1149 series devices may be necessary for legacy designs requiring similar form factors but different feature sets.