The TLE9180-21QK is a highly integrated System Basis Chip (SBC) from Infineon Technologies, designed for automotive applications. It combines a voltage regulator, a watchdog timer, and a communication interface to provide a comprehensive power management and safety solution for microcontrollers.

Applications:

• Automotive Electronic Control Units (ECUs)
• Engine Management Systems
• Transmission Control Systems
• Body Control Modules
• Safety-Critical Automotive Systems

Features:

• Voltage Regulator: Provides a stable and regulated voltage supply for the microcontroller.
• Watchdog Timer: Monitors microcontroller activity and resets the system in case of a failure.
• CAN Interface: Enables communication with other automotive systems.
• Fail-Safe Functionality: Ensures system reliability and safety in critical situations.
• Low Power Consumption: Optimizes energy efficiency in automotive applications.

Benefits:

• Enhanced System Reliability: The watchdog timer and fail-safe features enhance the overall reliability of the automotive system.
• Simplified System Design: Integration of multiple functions reduces the number of external components and simplifies the design process.
• Improved Energy Efficiency: Low power consumption contributes to improved fuel economy.
• Robust Communication: The CAN interface enables reliable communication with other automotive systems.
• Compact Solution: The small package size allows for efficient use of board space in automotive ECUs.

Technical Specifications:

The TLE9180-21QK includes a 5V voltage regulator with a typical output current of 300mA. The watchdog timer is configurable and can be adjusted to different timeout periods. The CAN interface supports data rates up to 1 Mbit/s. The device operates over a wide temperature range, typically from -40°C to +125°C, making it suitable for harsh automotive environments. It also includes protection features such as overvoltage protection, undervoltage protection, and short-circuit protection. The supply voltage ranges from 5.5V to 45V. It is available in a leadless TQFN package. The reset output is an open drain output that is low active. The watchdog features adjustable time windows.

The device complies with automotive safety standards, such as ISO 26262, and incorporates various safety mechanisms to ensure reliable operation in safety-critical applications. The integration of key functions into a single chip reduces the bill of materials and simplifies the overall system design, making it an attractive solution for automotive manufacturers.