Overview
The UJA1075ATW/5V0/1J is a high-performance Safety System Basis Chip (SBC) from NXP Semiconductors, designed specifically for automotive applications. This chip integrates the functions of a high-speed Controller Area Network (CAN) transceiver and a Local Interconnect Network (LIN) transceiver, along with additional features such as voltage regulators and watchdog capabilities. It is packaged in a HTSSOP-32 format, which provides a compact footprint and enhanced thermal dissipation. The UJA1075ATW/5V0/1J is optimized for use in power management and control systems within vehicles, ensuring reliable and efficient communication in demanding automotive environments.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer Part # | UJA1075ATW/5V0/1J | NXP Semiconductors part number |
| Package/Case | HTSSOP-32 (SOT549-1) | Package type with 32 leads and exposed die pad for thermal dissipation |
| Voltage Supply | 4.5V to 28V | Operating voltage range |
| Interface | CAN, LIN | High-speed CAN and LIN transceivers |
| Voltage Regulator | 250 mA (extendable with external PNP transistor) | Regulator for supplying a microcontroller |
| Standards Compliance | CAN: ISO 11898-2, ISO 11898-5; LIN: LIN 2.1, LIN 2.0, SAE J2602 | Compliance with industry standards for CAN and LIN interfaces |
| Watchdog | Advanced independent watchdog (in WD versions) | Optional watchdog feature for system reliability |
Key Features
- High-performance CAN/LIN core with speeds up to 1 Mbps
- Integrated fail-safe behavior and self-diagnostic capabilities
- Robust fault handling and error detection mechanisms
- Compact HTSSOP-32 package with exposed pad for enhanced thermal dissipation
- Low power consumption for optimal energy efficiency
- Supports wake-up by bus activity, cyclic wake-up, and external switches
- Periodic control signal for pulsed testing of wake-up switches
Applications
- Powertrain control systems
- Body control systems
- Chassis systems
- Advanced driver-assistance systems (ADAS)
- Autonomous driving solutions
Q & A
- What is the UJA1075ATW/5V0/1J used for?
The UJA1075ATW/5V0/1J is used in automotive applications for power management and control systems, integrating high-speed CAN and LIN interfaces along with voltage regulators and watchdog capabilities.
- What package type does the UJA1075ATW/5V0/1J come in?
The UJA1075ATW/5V0/1J is packaged in a HTSSOP-32 format (SOT549-1) with an exposed die pad for enhanced thermal dissipation.
- What are the operating voltage ranges for the UJA1075ATW/5V0/1J?
The operating voltage range for the UJA1075ATW/5V0/1J is from 4.5V to 28V.
- What standards does the UJA1075ATW/5V0/1J comply with?
The UJA1075ATW/5V0/1J complies with ISO 11898-2 and ISO 11898-5 for CAN, and LIN 2.1, LIN 2.0, and SAE J2602 for LIN interfaces.
- Does the UJA1075ATW/5V0/1J have a watchdog feature?
Yes, the UJA1075ATW/5V0/1J has an advanced independent watchdog feature in the WD versions.
- What are the key interfaces supported by the UJA1075ATW/5V0/1J?
The UJA1075ATW/5V0/1J supports high-speed CAN and LIN interfaces.
- How does the UJA1075ATW/5V0/1J handle power-up and power-down functionality?
The UJA1075ATW/5V0/1J ensures controlled power-up and power-down functionality of the Electronic Control Unit (ECU) and supports wake-up by bus activity, cyclic wake-up, and external switches.
- What are the typical applications of the UJA1075ATW/5V0/1J?
The UJA1075ATW/5V0/1J is typically used in powertrain control systems, body control systems, chassis systems, ADAS, and autonomous driving solutions.
- How does the UJA1075ATW/5V0/1J contribute to system reliability?
The UJA1075ATW/5V0/1J contributes to system reliability through its integrated fail-safe behavior, self-diagnostic capabilities, and robust fault handling mechanisms.
- What is the significance of the exposed die pad in the HTSSOP-32 package?
The exposed die pad in the HTSSOP-32 package allows for better heat dissipation from the SBC via the printed-circuit board.
