TJA1128 LIN mini system basis chip Rev. 1 29 March 2018 Product data sheet 1 General description The TJA1128 is a LIN Mini System Basis Chip (SBC) with a LIN transceiver, a low- dropout voltage regulator (LDO), a window watchdog, two WAKE inputs, one general purpose input (GPI) and one high-voltage multipurpose (HVMPO) output. The voltage regulator delivers up to 85 mA and is available with 3.3 V and 5.0 V output voltages. The TJA1128 can be operated in very low-current STANDBY and SLEEP modes with bus and local wake-up capability. 2 Features and benefits 2.1 General Battery operating voltage range from (3.3 V) 5.0 V to 28 V Very low current consumption in SLEEP and STANDBY mode SLEEP mode (voltage regulator off): typically 14 A STANDBY mode (voltage regulator on): typically 22 A Remote wake-up capability via pin LIN Local wake-up via pins WAKE1 and WAKE2 Configurable level-sensitive wake-up detection Cyclic sampled wake-up detection option with synchronized bias control via pin HVMPO Wake-up source recognition Configurable high-voltage multipurpose output (HVMPO) Bias control output for cyclic wake-up Limp home output Bias control output for battery monitoring circuit General purpose input (GPI) controlled output Limp home function on overtemperature, watchdog service fail, VCC undervoltage and RSTN short-circuit to ground Overtemperature shutdown Bidirectional reset pin with variable power-on reset length 2.2 Device customization Quasi one-time configuration via Serial Peripheral Interface (SPI) Initial mode to configure and disable Functions (e.g., LIN, watchdog, Reset, WAKE) Modes (e.g., SLEEP)NXP Semiconductors TJA1128 LIN mini system basis chip 2.3 Low-dropout voltage regulator for 3.3 V/5.0 V microcontroller supply 5.0 V/3.3 V nominal output voltage, 2 % accuracy 85 mA output current capability Undervoltage detection with reset output Excellent transient response with a small ceramic output capacitor Output is short-circuit proof to GND 2.4 LIN transceiver ISO 17987-4:2016 (12 V LIN) compliant LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A compliant SAE J2602-1 compliant K-line compatible Baud rate up to 20 kBd LIN high-speed mode with fast LIN slope to support high baud rates (> 20 kBd) Integrated termination resistor for LIN slave applications TXD dominant time-out function 2.5 Window watchdog Watchdog with Window, Timeout and Autonomous modes Microcontroller-independent clock source Watchdog period selectable between 16 ms and 128 ms Dedicated modes for software development and end-of-line flashing 2.6 Designed for automotive applications Qualified according to AEC-Q100 Load dump pulse protected against up to 43 V 8 kV Electrostatic Discharge (ESD) protection, according to the Human Body Model (HBM) on LIN-bus pin 6 kV ESD protection according to IEC 61000-4-2 on pins BAT, WAKE1, WAKE2 and 8 kV on pin LIN Bus terminal and battery pin protected against transients in the automotive environment (ISO 7637) LIN-bus pin short-circuit proof to battery and ground Leadless HVSON14 package (3.0 mm 4.5 mm) supporting Automated Optical Inspection (AOI) capability and low thermal resistance TJA1128 All information provided in this document is subject to legal disclaimers. NXP B.V. 2018. All rights reserved. Product data sheet Rev. 1 29 March 2018 2 / 39