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NXP Semiconductors UJA113xA System Basis Chips

NXP Semiconductors UJA113xA System Basis Chips (SBCs) are ideal for automotive Electronic Control Units (ECUs). The NXP Semiconductors UJA113xA SBCs include an integrated SMPS buck-boost converter, a high-speed CAN transceiver, and up to two LIN transceivers. The SBCs interface directly with CAN and LIN bus lines, power the microcontroller, manage input/output signals, and offer fail-safe features like a watchdog and configurable 'limp home' functionality stored in non-volatile memory.

Features

  • Designed for automotive applications according to ISO 11898-2:2016
  • ±6kV ESD protection according to the Human Body Model (HBM) on the CAN/LIN bus pins
  • ±6kV ESD protection according to IEC 61000-4-2 on the CAN/LIN bus pins, the sensor supply output (VEXT), and the HVIO pins
  • ±40V short-circuit proof CAN/LIN bus pins
  • Battery and CAN/LIN bus pins are protected against transients per ISO 7637-3
  • Integrated buck/boost converter (SMPS)
    • Automatic buck or boost mode selection depending on input voltage and output load condition functions with a single external coil
    • SMPS functions as a pre-regulator for V1 and, optionally, V2
    • SMPS can be used to supply external loads directly
  • Low-drop voltage regulators (LDOs)
    • V1 voltage regulator 5V or 3.3V with 500mA output current capability
    • V2 auxiliary voltage regulator 5V with 100mA output current capability
    • V2 is protected against shorts to GND and battery for off-board loads
  • A/D converter for monitoring the battery voltage
    • Two channels: 10-bit resolution, accurate to ±300mV at 20V full-scale
    • Undervoltage and overvoltage detection
  • LIN transceivers
    • One or two LIN channels, depending on the selected device
    • LIN 2.x and SAE J2602 compliant
    • Integrated LIN follower termination
    • Improved EMC emission performance with optimized curve shaping
  • CAN transceiver
    • ISO 11898-2:2016 compliant 1Mbit/s high-speed CAN transceiver supporting CAN FD active communication up to 5Mbit/s in the CAN
    • FD data field
    • Autonomous bus biasing according to ISO 11898-2:2016
    • UJA113xAHW/xFx: selective wake-up function (ISO11898-2:2016 compliant CAN partial networking)
  • High-voltage I/Os (not available in UJA113xAHW/xF0 variants)
    • Four or eight I/O pins individually configurable as high- or low-side output drivers
    • Reverse-current protection of the output in off-mode (loss-of-ground and loss-of-battery proof)
    • Open-load diagnostics and short-circuit protection and diagnostics
    • Individually configurable as inputs with wake-up capability
    • Three HVIOs can be configured individually as limp-home outputs

Applications

  • Automotive
  • Body control
  • Front lighting modules
  • Gateways
  • Steering column control modules
  • Transmission control units

Block Diagram

NXP Semiconductors UJA113xA System Basis Chips

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發佈日期: 2024-06-12 | 更新日期: 2024-06-20