Overview
The UJA1075ATW/5V0/WDJ is a high-speed CAN/LIN core system basis chip (SBC) designed and manufactured by NXP USA Inc. This component is specifically optimized for automotive applications, integrating essential functionalities for vehicle communication systems. It combines a high-speed Controller Area Network (CAN) transceiver, a Local Interconnect Network (LIN) transceiver, voltage regulators, and an advanced watchdog in a single chip, enhancing the reliability and performance of Electronic Control Units (ECUs) in harsh automotive environments.
Key Specifications
| Parameter | Value |
|---|---|
| Voltage Supply | 4.5V to 28V |
| Package / Case | 32-TSSOP (0.240", 6.10mm Width) with exposed pad |
| Interface | CAN, LIN |
| Voltage Regulator | 5V regulator (extendable with external PNP transistor) |
| Watchdog | Advanced independent watchdog (in WD versions) |
| Operating Conditions | Can operate at VBAT voltages down to 5.5V during cranking (ISO 7637, pulse 4) |
Key Features
- Supports high-speed CAN and LIN interfaces, compliant with ISO 11898-2, ISO 11898-5, LIN 2.1, LIN 2.0, and SAE J2602 standards.
- Operates over a wide supply voltage range (4.5V to 28V), ensuring compatibility with various automotive electrical systems.
- Encased in a 32-TSSOP package with an exposed pad for enhanced thermal dissipation.
- Includes a 250 mA voltage regulator and the option to extend current capability with an external PNP transistor.
- Features an advanced independent watchdog for system reliability (in WD versions).
- Provides wake-up by bus activity, cyclic wake-up, and external switch activation.
Applications
- Automotive electronics, particularly in Electronic Control Units (ECUs).
- Vehicle communication systems utilizing CAN and LIN bus interfaces.
Q & A
- What is the primary application of the UJA1075ATW/5V0/WDJ? The primary application is in automotive electronics, specifically in Electronic Control Units (ECUs) and vehicle communication systems.
- What interfaces does the UJA1075ATW/5V0/WDJ support? It supports high-speed CAN and LIN interfaces.
- What is the voltage supply range for the UJA1075ATW/5V0/WDJ? The voltage supply range is from 4.5V to 28V.
- What package type is the UJA1075ATW/5V0/WDJ available in? It is available in a 32-TSSOP package with an exposed pad.
- Does the UJA1075ATW/5V0/WDJ have a watchdog feature? Yes, the WD versions include an advanced independent watchdog.
- How does the UJA1075ATW/5V0/WDJ handle power-up and power-down functionality? It handles power-up and power-down functionality of the ECU and ensures advanced system reliability through wake-up by bus activity, cyclic wake-up, and external switch activation.
- Is the UJA1075ATW/5V0/WDJ compliant with automotive standards? Yes, it is compliant with ISO 11898-2, ISO 11898-5, LIN 2.1, LIN 2.0, and SAE J2602 standards.
- Can the UJA1075ATW/5V0/WDJ operate during vehicle cranking? Yes, it can operate at VBAT voltages down to 5.5V during cranking (ISO 7637, pulse 4).
- What is the purpose of the exposed pad in the package? The exposed pad enhances thermal dissipation from the SBC via the printed-circuit board.
- Is the UJA1075ATW/5V0/WDJ currently active in production? Yes, the product status is currently active with no indications of discontinuation or the availability of replacements or upgrades.
