Infineon ITS4141NHUMA1 High-Side Power Switch: Features, Applications, and Technical Specifications

In the realm of power management and control, high-side switches are critical components for efficiently driving loads while providing robust protection. The Infineon ITS4141NHUMA1 stands out as a premier single-channel high-side power switch, engineered to meet the demanding requirements of modern automotive and industrial applications. This device integrates advanced protective features and diagnostic capabilities into a compact package, making it an ideal solution for a wide array of electronic control units (ECUs).

Key Features

The ITS4141NHUMA1 is packed with features designed to ensure reliability and system safety. At its core, it is built using Infineon’s proprietary Smart Power Technology (SPT), which combines vertical DMOS power transistors with CMOS and bipolar circuits on a single monolithic chip.

One of its most significant attributes is its robust protection suite. It includes overload protection, short-circuit protection, and overtemperature shutdown, which safeguard both the switch and the connected load from damage under fault conditions. Furthermore, it features overvoltage protection (including load-dump resilience) and reverse battery protection up to -40V, which is crucial for the harsh electrical environments found in automotive systems.

The device also offers sophisticated diagnostic feedback. It provides a current-sense output that is proportional to the load current, enabling precise monitoring and control. An open-drain status flag indicates fault conditions such as overtemperature or short-circuits, allowing the microcontroller to take appropriate action.

Primary Applications

Thanks to its ruggedized design and AEC-Q100 qualification, the ITS4141NHUMA1 is predominantly targeted at automotive applications. It is perfectly suited for driving various resistive, capacitive, and inductive loads, such as:

Automotive body control modules: Controlling lights, heaters, and window motors.

Power distribution units: Managing power to different subsystems.

Engine management systems: Driving solenoids and valves.

Industrial automation: Acting as a reliable interface between microcontrollers and actuators, solenoids, and small motors in industrial environments.

Technical Specifications

The ITS4141NHUMA1 operates over a wide supply voltage range from 5.5V to 40V, making it compatible with standard 12V and 24V battery systems. It can deliver a continuous output current of up to 1.7A from a single channel with a very low typical on-state resistance (RDS(on)) of 160 mΩ, which minimizes power dissipation and improves efficiency.

The device is controlled via a 3.3V and 5V TTL/CMOS compatible input, ensuring easy interfacing with modern microcontrollers. It is offered in a space-saving, surface-mount PG-DSO-14 package that provides excellent thermal performance.

ICGOOODFIND

The Infineon ITS4141NHUMA1 is a highly integrated and protected high-side switch that delivers exceptional reliability and diagnostic intelligence for automotive and industrial systems. Its combination of a low RDS(on), comprehensive protection features, and detailed diagnostic feedback makes it a superior choice for designers seeking to enhance system robustness and performance.

Keywords:

High-Side Switch, Automotive Grade, Overload Protection, Diagnostic Feedback, Power Management