Mini High-Speed CAN System Basis Chip with Standby/Sleep Mode and Watchdog
Design Files
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Mini High-Speed CAN System Basis Chip
The UJA1169ATK is a mini high-speed CAN system basis chip (SBC) family containing an ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 compliant HS-CAN transceiver including CAN FD up to 5 Mbit/s and an integrated 5 V or 3.3 V, 250 mA supply. It also features a watchdog, a serial peripheral interface (SPI) and LIMP output.
The UJA1169ATK comes in six variants:
- The UJA1169ATK, UJA1169ATK/F, UJA1169ATK/X and UJA1169ATK/X/F contain a 5 V regulator (V1). V1 is a 3.3 V regulator in the UJA1169ATK/3 and the UJA1169ATK/F/3.
- The UJA1169ATK/X and UJA1169ATK/X/F are equipped with a 5 V supply (VEXT) for off-board loads.
- The UJA1169Axx/F variants support ISO 11898-2:2016 compliant CAN partial networking with a selective wake-up function incorporating CAN FD-passive.
Product Details
Features
General
- Designed for automotive applications according to ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5
- Hardware and software compatible with the UJA1169 product family
- ±8 kV ESD protection, according to the human body model (HBM) on the CAN-bus pins
- ±6 kV ESD protection according to IEC TS 62228 on pins BAT, WAKE, VEXT and the CAN-bus pins
- CAN-bus pins short-circuit proof to ±58 V
- Battery and CAN-bus pins protected against automotive transients according to ISO 7637-3
Low-Drop Voltage Regulators (LDOs)
- V1 voltage regulator 5 V or 3.3 V with 250 mA output current capability
- Active power distribution via optional external PNP transistor
- V2 auxiliary voltage regulator 5 V with 100 mA output current capability
- V2 is protected against shorts to GND, battery and negative voltages down to -18 V for off-board loads (UJA1169ATK/X and UJA1169ATK/X/F only)
CAN Transceiver
- High-speed CAN transceiver supporting CAN FD active communication up to 5 Mbit/s in the CAN FD data field
- Autonomous bus biasing according to ISO 11898-6
- Remote wake-up capability via standard CAN wake-up pattern or ISO 11898-2:2016 compliant CAN partial networking by means of selective wake-up frame detection including CAN FD passive support (/F versions only)
System Control Features
- Wake-up via CAN or local wake-up pin with wake-up source detection
- Watchdog with window, timeout and autonomous modes and microcontroller-independent clock source
- LIMP output pin with configurable activation threshold
- 16-, 24- and 32-bit SPI for configuration, control and diagnosis
Comparison Table
| Orderable Type | Standby mode | Sleep mode | LDO (5V0) (mA) | LDO (3V3) (mA) | SPI | Watchdog | External 5 (V) Supply (mA) | Partial Networking | CAN FD Active (Mbps) | CAN FD Passive | LIMP |
|---|---|---|---|---|---|---|---|---|---|---|---|
| UJA1169ATK | X | X | 250 | X | X | 5 | X | ||||
| UJA1169ATK/X | X | X | 250 | X | X | 100 | 5 | X | |||
| UJA1169ATK/F | X | X | 250 | X | X | X | 5 | X | X | ||
| UJA1169ATK/X/F | X | X | 250 | X | X | 100 | X | 5 | X | X | |
| UJA1169ATK/3 | X | X | 250 | X | X | 5 | X | ||||
| UJA1169ATK/F/3 | X | X | 250 | X | X | X | 5 | X | X |
Related products
Mini High-Speed CAN System Basis Chip for Partial Networking
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Documentation
Quick reference to our documentation types.
Design Resources
Hardware
Quick reference to our
board types.
2 hardware offerings
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Complete SolutionOrangeBox Automotive Connectivity Domain Controller Development Platform
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Evaluation and Development BoardsUJA1169A Evaluation Boards
Software
Quick reference to our software types.
3 software files
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Middleware
UJA116xA SBC AUTOSAR R21-11 Version
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Debugging and Visualization Tools
FlexGUI for UJA1169A SBCs
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Debugging and Visualization Tools
FlexGUI: Software Tool for Evaluation of Reference Design Kits
Note: For better experience, software downloads are recommended on desktop.