UJA1164TK Mini high-speed CAN system basis chip with Standby mode & watchdog
The UJA1164 is a mini high-speed CAN System Basis Chip (SBC) containing an ISO 11898-2/5 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 UJA1164 can be operated in a very low-current Standby mode with bus wake-up capability and supports ISO 11898-6 compliant autonomous CAN biasing.
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 UJA1164 to meet the requirements of different applications
产品特点 Features
General
- ISO 11898-2 and ISO 11898-5 compliant high-speed CAN transceiver
- 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
Designed for automotive applications
- ±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 61000-4-2 on the CAN bus pins and on pin BAT
- 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 mode 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)
Low-drop voltage regulator for 5 V microcontroller supply (V1)
- 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
Power Management
- Standby mode featuring very low supply current; voltage V1 remains active to maintain the supply to the microcontroller
- Remote wake-up capability via standard CAN wake-up pattern
- Wake-up source recognition
- Remote wake-up can be disabled to reduce current consumption
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
UJA1164TK 技术支持
| 档案名称 |
标题 |
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| UJA1164TK |
Mini high-speed CAN system basis chip with Standby mode & watchdog |
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| UM10204_JA |
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