Infineon BTS4140NHUMA1 High-Side Power Switch: Features, Applications, and Benefits

The Infineon BTS4140NHUMA1 is a robust and highly efficient high-side power switch designed to meet the demanding requirements of modern automotive and industrial applications. As part of Infineon’s proven Smart High-Side Power Switch family, this device integrates advanced protection features, high reliability, and ease of use into a compact package.

Key Features

One of the standout attributes of the BTS4140NHUMA1 is its integrated protection functionality. The device includes built-in safeguards such as overload protection, short-circuit protection, and overtemperature shutdown, which enhance system durability and prevent catastrophic failures. Additionally, it offers reverse battery protection with the use of an external series diode, making it highly resilient in harsh electrical environments.

The switch operates with a low standby current and features a diagnostic feedback pin that provides real-time status information, including fault detection and load current sensing. This capability allows for precise system monitoring and quick troubleshooting. With a continuous current capability of up to 140 mA and a low on-state resistance (RDS(on)), the BTS4140NHUMA1 ensures minimal power dissipation and high energy efficiency.

Its wide operating voltage range, from 5.5 V to 28 V, makes it suitable for both 12 V and 24 V systems commonly found in automotive and industrial settings. The device is housed in a surface-mountable PG-SOT223-4 package, which saves board space and simplifies assembly.

Applications

Thanks to its robustness and diagnostic features, the BTS4140NHUMA1 is widely used in automotive electronics, such as controlling interior lighting, seat heaters, and small motors. It is also ideal for industrial automation systems, including PLCs (Programmable Logic Controllers), sensors, and actuators. Furthermore, it finds applications in consumer and home appliance systems where reliable switching and protection are essential.

Benefits

Designers benefit from the device’s high level of integration, which reduces the need for external components and simplifies circuit design. Its exceptional reliability under extreme conditions—such as voltage transients and temperature variations—ensures long-term performance. Moreover, the diagnostic features contribute to improved system safety and maintenance efficiency.

ICGOODFIND Summary

The Infineon BTS4140NHUMA1 is a versatile and reliable high-side power switch offering integrated protection, diagnostic capabilities, and high efficiency. It is an excellent choice for automotive, industrial, and consumer applications where durability and performance are critical.

Keywords:

High-Side Switch, Automotive Electronics, Overcurrent Protection, Diagnostic Feedback, Power Management