UJA1169ATKZ

Specialized Overview

The UJA1169ATKZ is a mini high-speed CAN System Basis Chip (SBC) from NXP Semiconductors, housed in an HVSON-20 package. It integrates an ISO 11898-2:2016 compliant HS-CAN transceiver supporting CAN FD up to 5 Mbit/s and a scalable 5 V or 3.3 V 250 mA supply (V1). The device features a watchdog, SPI interface, and operates within a voltage range of 2.8 V to 28 V. It supports low-current Standby and Sleep modes with bus and local wake-up capabilities. The component includes ESD protection rated at 8 kV HBM on CAN-bus pins and is qualified under AEC-Q100 standards for automotive applications.

Specialized Feature Summary

• Integrates a high-speed CAN transceiver compliant with ISO 11898-2:2016 and SAE J2284 standards, supporting CAN FD active communication up to 5 Mbit/s.
• Includes a scalable 5 V or 3.3 V 250 mA low-drop voltage regulator (V1) for microcontroller supply, featuring thermal scaling via external PNP transistor support.
• Provides autonomous bus biasing and CAN partial networking with selective wake-up function incorporating CAN FD-passive support to ignore CAN FD traffic in sleep modes.
• Features a watchdog with Window, Timeout, and Autonomous modes, along with a dedicated LIMP output pin for system failure flagging.

Specialized Applications

• Automotive general-purpose industrial applications requiring high-speed CAN communication.
• Systems utilizing the S32K144 MCU evaluation boards for prototyping and demonstration.
• Networks supporting both CAN FD and classic CAN communications requiring partial networking capabilities.

Specialized Procurement Notes

Verify the specific variant suffix against the datasheet to ensure correct regulator configuration (V1/V2/VEXT) and feature set. Confirm package type is HVSON-20 and check RoHS compliance status. Ensure the ordering part number matches the required electrical characteristics and automotive qualification standards before finalizing procurement.

Specialized Selection Notes

Select the UJA1169ATKZ variant based on the required supply configurations. The 'TK' suffix indicates a 5 V V1 regulator and onboard 5 V V2 regulator. Choose '/X' variants if an off-board sensor supply (VEXT) is needed instead of V2. Select '/F' variants if CAN partial networking with CAN FD-passive support is required for mixed network environments.

Specialized Part Context

The UJA1169A series is part of NXP's mini high-speed CAN system basis chip family. It is designed for automotive applications, offering hardware and software compatibility with other UJA1169 variants. The device simplifies design by integrating power management, CAN transceiver, and system control functions into a single compact package.

Specialized Replacement Considerations

Direct substitutes within the same family include UJA1169ATK/F, UJA1169ATK/X, and UJA1169ATK/3. Selection depends on specific needs for partial networking (/F), off-board supply (/X), or 3.3 V regulator (/3). Verify pinout and register compatibility when switching between these variants.