UJA1078ATW/5V0/1J

The UJA1078A core System Basis Chip (SBC) replaces the basic discrete components commonly found in Electronic Control Units (ECU) with a high-speed Controller Area Network (CAN) and two Local Interconnect Network (LIN) interfaces. The UJA1078A supports the networking applications used to control power and sensor peripherals by using a high-speed CAN as the main network interface and the LIN interfaces as local sub-busses. The core SBC contains the following integrated devices: In addition to the advantages gained from integrating these common ECU functions in a single package, the core SBC offers an intelligent combination of system-specific functions such as: The UJA1078A is designed to be used in combination with a microcontroller that incorporates a CAN controller. The SBC ensures that the microcontroller always starts up in a controlled manner.

General

• Contains a full set of CAN and LIN ECU functions:
  • CAN transceiver and two LIN transceivers
  • Scalable 3.3 V or 5 V voltage regulator delivering up to 250 mA for a microcontroller and peripheral circuitry; an external PNP transistor can be connected for better heat distribution over the PCB
  • Separate voltage regulator for the CAN transceiver (5 V)
  • Watchdog with Window and Timeout modes and on-chip oscillator
  • Serial Peripheral Interface (SPI) for communicating with the microcontroller
  • ECU power management system
• Designed for automotive applications:
  • Enhanced ElectroMagnetic Compatibility (EMC) performance
  • ±8 kV ElectroStatic Discharge (ESD) protection Human Body Model (HBM) on the CAN/LIN bus pins and the wake-up pins
  • ±6 kV ElectroStatic Discharge protection IEC 61000-4-2 on the CAN/LIN bus pins and the wake-up pins
  • ±58 V short-circuit proof CAN/LIN bus pins
  • Bat