Infineon IFX25401TEVATMA1: High-Efficiency 50V Intelligent Power Switch for Automotive Applications
The relentless drive towards enhanced vehicle electrification, advanced driver-assistance systems (ADAS), and sophisticated body electronics demands robust, efficient, and intelligent power management solutions. Addressing these critical needs, the Infineon IFX25401TEVATMA1 stands out as a premier high-side power switch engineered specifically for the rigorous demands of the automotive environment.
This intelligent switch is designed to control a wide array of resistive, capacitive, and inductive loads, such as solenoids, valves, motors, and lamps. Its core strength lies in integrating a 50V N-channel MOSFET with advanced protection and diagnostic features into a single, compact package. This high integration simplifies design-in, reduces board space, and enhances overall system reliability.
A key attribute of the IFX25401TEVATMA1 is its exceptional efficiency. The low on-state resistance (RDS(on)) of the integrated MOSFET minimizes conduction losses, which is paramount for reducing heat generation and improving energy efficiency in power-intensive applications. This is especially critical in automotive systems where thermal management and battery longevity are top priorities.
Beyond efficiency, the device's "intelligent" capabilities are a significant advantage. It offers comprehensive embedded protection functions including:
Overload and short-circuit protection

Over-temperature shutdown
Over-voltage clamp (active)
Load current feedback via a proportional analog output pin
Furthermore, it provides extensive diagnostic feedback to the microcontroller, such as open-load detection in on and off states, which is essential for functional safety compliance. These features make it an ideal solution for systems requiring adherence to stringent automotive safety standards like ISO 26262.
Housed in a TO-252-5 (DPAK-5) package with exposed pad, the device ensures excellent thermal performance, allowing it to dissipate heat effectively and sustain high operational currents. Its AEC-Q100 qualified status guarantees its performance and reliability under the extreme temperature and stress conditions typical in automotive applications.
ICGOOODFIND: The Infineon IFX25401TEVATMA1 is a highly integrated, intelligent high-side switch that delivers superior efficiency, robust protection, and detailed diagnostics. It is an optimal choice for automotive designers seeking to enhance system reliability, simplify architecture, and meet critical functional safety requirements in modern vehicle platforms.
Keywords: Intelligent Power Switch, Automotive AEC-Q100, High-Side Driver, Over-Current Protection, Load Diagnostics.
