描述 Description

The UJA1168ATK 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 supporting CAN FD up to 5Mbit/s together with a 5 V/100 mA supply for a microcontroller. It also features a watchdog and a Serial Peripheral Interface (SPI).
The UJA1168ATK can be operated in very-low-current Standby and Sleep modes and supports CAN partial networking by means of a selective wake-up function.
The UJA1168ATK and UJA1168ATK/F variants contain a battery-related high-voltage output (INH) for controlling an external voltage regulator, while the UJA1168ATK/X and UJA1168ATK/XF are equipped with a 5 V sensor supply (VEXT).
A dedicated implementation of the partial networking protocol called “FD-passive” has been embedded into the UJA1168ATK/F and UJA1168ATK/XF variants.
Several configuration settings are stored in non-volatile memory, allowing the SBC to be adapted for use in a specific application.

特性 Features

General
? 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 pin BAT is off
? No ‘false’ wake-ups due to CAN FD frame detection in UJA1168ATK/F and UJA1168ATK/XF
Designed for Automotive Applications
? ±8 kV Electro Static 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 are protected against automotive transients according to with ISO 7637-3
? Very low quiescent current in Standby and Sleep modes with full wake-up capability
? Leadless HVSON14 package (3 mm x 4.5 mm) with improved Automated Optical Inspection (AOI) capability
? Dark green product (halogen free and Restriction of hazardous Substances (RoHS) compliant)
Integrated Supply Voltage for the CAN Transceiver (V1)
? 5 V nominal output; ±2 % accuracy
? 100 mA output current capability
? Current limiting above 150 mA
? On-resistance of 5 ? (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 response with a 4.7 μF ceramic output load capacitor
? Short-circuit to GND/overload protection on pin V1
? Turned off in Sleep mode
Power Management
? Standby mode featuring very low supply current; voltage V1 remains active to maintain the supply to the microcontrollerM
? Sleep mode featuring very low supply current with voltage V1 switched offM
? Remote wake-up capability via standard CAN wake-up pattern or via ISO 11898-6 compliant selective wake-up frame detection, including CAN FD-passive support in /F and /XF variantsM
? Bit rates of 50 kbit/s, 100 kbit/s, 125 kbit/s, 250 kbit/s, 500 kbit/s, and 1 Mbit/s supported during selective wake-upM
? Local wake-up via the WAKE pinM
? Wake-up source recognitionM
? Local and/or remote wake-up can be disabled to reduce current consumptionM
? High-voltage output (INH) for controlling an external voltageM
System Control and Diagnostic Features
? 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
Sensor supply voltage (pin VEXT of UJA1168ATK/X and UJA1168ATK/XF)
? 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

應(yīng)用 Application

Automotive

? Body Control

? Door Control
?Electric Power Steering (EPS)

? Gear Shifters

? HVAC Climate Control

? Seat Pretensioner

? Sunroof Control
?Tire Pressure Monitoring System (TPMS)

? Window Control