TLE4251DATMA1: Infineon's Low-Drop Voltage Regulator for Automotive Applications
In the demanding world of automotive electronics, where components must operate flawlessly under extreme temperatures, voltage fluctuations, and harsh electromagnetic conditions, reliable power management is non-negotiable. Infineon Technologies addresses this critical need with the TLE4251DATMA1, a robust and highly integrated low-dropout (LDO) linear voltage regulator designed specifically for the automotive environment.
The core function of the TLE4251DATMA1 is to provide a stable, clean, and precisely regulated 5V output voltage from an input voltage supply (Vi) ranging from 3.0 V to 42 V. This wide input range is crucial for automotive applications, as it must withstand load dump transients and other voltage spikes common in vehicle electrical systems. A key feature is its very low current consumption in standby mode, which is essential for modern vehicles with numerous always-on electronic control units (ECUs) to prevent battery drain.
Beyond basic regulation, the TLE4251DATMA1 is packed with protective features that make it exceptionally robust. It includes short-circuit protection, overcurrent protection, and overtemperature protection, safeguarding both the regulator itself and the sensitive load it powers. Furthermore, an integrated reverse polarity protection of up to -42V ensures the device is not damaged if the battery connections are accidentally reversed during maintenance or installation.
The device also offers excellent monitoring capabilities. An error flag output warns the microcontroller of an out-of-regulation condition, such as a drop in input voltage or an overtemperature event, enabling the system to take appropriate action. Its high accuracy, with a tight tolerance of ±2% on the output voltage, ensures that microprocessors and sensors receive the precise voltage they require for optimal performance.
Housed in a space-saving PG-SOT223-4 package, the TLE4251DATMA1 is suitable for a vast array of automotive applications. It is commonly used to power body control modules, sensor clusters, infotainment systems, and instrumentation panels. Its AEC-Q100 qualification guarantees that it meets the stringent quality and reliability standards required for automotive components.
ICGOOODFIND: The Infineon TLE4251DATMA1 stands out as a premier solution for automotive power management, combining a wide operating range, comprehensive protection features, and diagnostic functions in a single, efficient package. Its design prioritizes both performance and reliability, making it an indispensable component for ensuring the stability and longevity of vehicle electronic systems.
Keywords: Low-Dropout (LDO) Regulator, Automotive Grade, Overcurrent Protection, Reverse Polarity Protection, AEC-Q100 Qualified.
