UJA1131HW/5V0,518 NXP

UJA113x series Buck/boost HS-CAN/(dual) LIN system basis chip Rev. 2 5 July 2016 Product data sheet 1. General description The UJA113x System Basis Chip (SBC) contains a fully integrated buck and boost converter along with a number of features commonly found in the latest generation of automotive Electronic Control Units (ECUs). It interfaces directly with CAN and LIN bus lines, supplies the microcontroller, handles input and output signals and supports fail-safe features including a watchdog and advanced limp home functionality configurable via non-volatile memory. The UJA113x is available in number of variants as detailed in Section 3. To satisfy the demand for SBCs that operate at low battery supply voltages and feature low power dissipation, a switched mode power supply (SMPS) with automatic down (Buck mode) or up conversion (Boost mode) has been integrated into the UJA113x. In Boost mode, the SMPS of the UJA1131 and UJA1132 variants can continue supplying a microcontroller during dips in the battery voltage, ensuring uninterrupted operation. The boost stage of the UJA1135 and the UJA1136 has limited output current capability, and is suitable for supplying the memory in a microcontroller to prevent information being lost. The SMPS requires only a single external coil and some capacitors but no separate semiconductors. The UJA113x implements the classic CAN physical layer as defined in the current ISO11898 standard (-2:2003, -5:2007, -6:2013). Pending the release of the upcoming version of ISO11898-2:201x including CAN FD, additional timing parameters defining loop delay symmetry are included. This implementation enables reliable communication in the CAN FD fast phase at data rates up to 2 Mbit/s. The UJA113xFD/x variants support ISO 11898-6:2013 and ISO 11898-2:201x compliant CAN partial networking with a selective wake-up function incorporating CAN FD-passive. CAN FD-passive is a feature that allows CAN FD bus traffic to be ignored in Sleep/Standby mode. CAN FD-passive partial networking is the perfect fit for networks that support both CAN FD and classic CAN communications. It allows normal CAN controllers that do not need to communicate CAN FD messages to remain in partial networking Sleep/Standby mode during CAN FD communication without generating bus errors. A number of configuration settings are stored in non-volatile memory. This makes it possible to adapt the power-on and limp home behavior of the UJA113x to meet the specific requirements of an application.UJA113x series NXP Semiconductors Buck/boost HS-CAN/dual LIN system basis chip 2. Features and benefits 2.1 General Generic SBC functions: Fully integrated buck-boost converter 5 V/3.3 V voltage regulator delivering up to 500 mA Separate voltage regulator with optional protection against shorts to battery and loss of module ground CAN transceiver and up to two LIN transceivers Two-channel battery monitoring with integrated A/D converter Watchdog with Window and Timeout modes and on-chip oscillator Serial Peripheral Interface (SPI) for communicating with the microcontroller ECU power management system Protected general-purpose high-voltage I/O pins configurable as high-side drivers (HS), low-side drivers (LS) or wake-up inputs Four internal PWM/pulse timers in derivatives containing high-voltage I/O pins (see Table 1) Designed for automotive applications: Excellent ElectroMagnetic Compatibility (EMC) performance 6 kV ElectroStatic Discharge (ESD) protection according to the Human Body Model (HBM) on the CAN/LIN bus pins 6 kV ElectroStatic Discharge protection according to IEC 61000-4-2 on the CAN/LIN bus pins, the sensor supply output (VEXT) and the HVIO pins 40 V short-circuit proof CAN/LIN bus pins Battery and CAN/LIN bus pins are protected against transients in accordance with ISO 7637-3 Very low-current Standby and Sleep modes with full wake-up capability Supports remote flash programming via the CAN-bus Compact 10 mm 10 mm HTQFP48 package with low thermal resistance Dark green product (halogen free and Restriction of Hazardous Substances (RoHS) compliant) 2.2 Integrated buck and boost converter (SMPS) Buck and boost functions with a single external coil: Automatic Buck or Boost mode selection depending on input voltage and output load conditions Boost function allows the UJA1131 and UJA1132 to operate at very low supply voltages (e.g. 2 V lowest achievable supply voltage depends on output load conditions) Boost function of the UJA1135 and UJA1136 can be used to supply the volatile memory of a microcontroller down to battery voltages a low as 2 V. Soft-start function The SMPS functions as a pre-regulator for V1 and, optionally, V2: Results in excellent load response at V1 and V2 Results in negligible ripple at V1 and V2 outputs UJA113X SERIES All information provided in this document is subject to legal disclaimers. NXP Semiconductors N.V. 2016. All rights reserved. Product data sheet Rev. 2 5 July 2016 2 of 132