The TLE42694-2EL is a monolithic integrated voltage regulator from Infineon Technologies. It's designed for automotive applications, providing a stable and regulated 5V output voltage with a high degree of protection and diagnostic features. This regulator is specifically designed to withstand the harsh conditions of automotive environments, including load dump, reverse polarity, and overtemperature.

Applications

• Automotive ECUs (Engine Control Units): Powers microcontrollers and other critical components.
• Body Control Modules: Provides stable power for various functions like lighting, wipers, and door locks.
• Transmission Control Units: Regulates voltage for sensors and actuators in the transmission system.
• Dashboard Electronics: Powers displays, gauges, and other instrumentation.
• Power Supply Systems: Used in general power management for automotive electronics.

Features

• 5V Regulated Output: Provides a stable and precise 5V output voltage.
• Low Dropout Voltage: Operates with a low input-output voltage difference for enhanced efficiency.
• Overvoltage Protection: Protects the load against excessive input voltage.
• Short-Circuit Protection: Prevents damage due to short circuits on the output.
• Overtemperature Protection: Shuts down the regulator if the temperature exceeds a safe limit.
• Reverse Polarity Protection: Protects against damage from incorrect polarity connection.
• Enable Function: Allows for controlled power-up and power-down sequences.
• Reset Function: Provides a reset signal for connected microcontrollers during undervoltage conditions.

Benefits

• Enhanced Reliability: Protects connected components from voltage spikes and other electrical disturbances.
• Stable Power Supply: Ensures consistent performance of automotive electronics under varying conditions.
• Simplified Design: Reduces the need for external protection components.
• Compact Solution: Integrates multiple protection features into a single package.
• Improved System Safety: Protects against electrical hazards and ensures safe operation of automotive systems.

Additional Details

The TLE42694-2EL operates with an input voltage range typically between 6V and 45V and provides a regulated 5V output with a current capability of up to 450mA. It features a low quiescent current consumption to minimize battery drain when the vehicle is not running. The regulator incorporates diagnostic functions like undervoltage reset and overtemperature warning, providing feedback to the ECU for fault detection. The package is typically a PG-DSO-14, designed for surface mounting on PCBs. This regulator is designed to meet the stringent requirements of automotive applications, offering high reliability and robust performance in demanding environments. Its thermal resistance is specified to ensure proper heat dissipation, and it complies with automotive industry standards for electromagnetic compatibility (EMC).