UJA1167ATK/0Z

The UJA1167A is a mini high-speed CAN System Basis Chip (SBC) containing an ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 compliant HS-CAN transceiver and an integrated 5 V/100 mA supply for a microcontroller. It also features a watchdog and a Serial Peripheral Interface (SPI). The UJA1167A can be operated in very-low-current Standby and Sleep modes with bus and local wake-up capability and supports ISO 11898-2:2016 compliant autonomous CAN biasing. The microcontroller supply is switched off in Sleep mode. The UJA1167ATK variant contains a battery-related high-voltage output (INH) for controlling an external voltage regulator, while the UJA1167ATK/X is equipped with a 5 V sensor supply (VEXT). This implementation enables reliable communication in the CAN FD fast phase at data rates up to 5 Mbit/s. A number of configuration settings are stored in non-volatile memory, allowing the SBC to be adapted for use in a specific application. This makes it possible to configure the power-on behavior of the UJA1167A to meet the requirements of different applications.

Key features

• ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 compliant high-speed CAN transceiver
• Hardware and software compatible with the UJA116x product family and with improved EMC performance Loop delay symmetry timing enables reliable communication at data rates up to 5 Mbit/s in the CAN FD fast phase
• Autonomous bus biasing according to ISO 11898-6
• Fully integrated 5 V/100 mA low-drop voltage regulator for 5 V microcontroller supply (V1)
• Bus connections are truly floating when power to pin BAT is off
• ±8 kV ElectroStatic Discharge (ESD) protection, according to the Human Body Model (HBM) on the CAN bus pins
• ±6 kV ESD protection, according to IEC TS 62228 on the CAN bus pins, the sensor supply output VEXT and on pins BAT and WAKE
• CAN bus pins short-circuit proof to ±58 V
• Battery and CAN bus pins protected against automotive transients according to ISO 7637-3
• Very low quiescent current in Standby and Sleep modes with full wake-up capability
• Leadless HVSON14 package 3.0 mm×4.5 mm with improved Automated Optical Inspection (AOI) capability and low thermal resistance
• Dark green product (halogen free and Restriction of Hazardous Substances (RoHS) compliant)
• 5 V nominal output; ±2 % accuracy
• 100 mA output current capability
• Current limiting above 150 mA
• On-resistance of 5 Ω (max)
• Support for microcontroller RAM retention down to a battery voltage of 2 V
• Undervoltage reset with selectable detection thresholds: 60 %, 70 %, 80 % or 90 % of output voltage
• Excellent transient response with a 4.7 μF ceramic output capacitor
• Short-circuit to GND/overload protection on pin V1
• Turned off in Sleep mode
• Standby mode featuring very low supply current; voltage V1 remains active to maintain the supply to the microcontroller
• Sleep mode featuring very low supply current with voltage V1 switched off
• Remote wake-up capability via standard CAN wake-up pattern
• Local wake-up via the WAKE pin
• Wake-up source recognition
• Local and/or remote wake-up can be disabled to reduce current consumption
• High-voltage output (INH) for controlling an external voltage (UJA1167ATK)
• Mode control via the Serial Peripheral Interface (SPI)
• Overtemperature warning and shutdown
• Watchdog with independent clock source
• Watchdog can be operated in Window, Timeout and Autonomous modes
• Optional cyclic wake-up in watchdog Timeout mode
• Watchdog automatically re-enabled when wake-up event captured
• Watchdog period selectable between 8 ms and 4 s
• Supports remote flash programming via the CAN bus
• 16-, 24- and 32-bit SPI for configuration, control and diagnosis
• Bidirectional reset pin with variable power-on reset length to support a variety of microcontrollers
• Configuration of selected functions via non-volatile memory
• 5 V nominal output; ±2 % accuracy
• 30 mA output current capability
• Current limiting above 30 mA
• Excellent transient response with a 4.7 μF ceramic output load capacitor
• Protected against short-circuits to GND and to the battery
• High ESD robustness of ±6 kV according to IEC TS 62228
• Can handle negative voltages as low as -18 V