Infineon BTS50080-1TEB: High-Current Smart Switch with Diagnostic and Protection Features

The Infineon BTS50080-1TEB is a state-of-the-art, high-side power switch designed to meet the rigorous demands of modern automotive and industrial applications. As part of Infineon’s PROFET™ (Protected MOSFET) family, this device integrates advanced protection mechanisms, precise diagnostic features, and robust power handling into a single, compact package. It supports a continuous current of up to 40 A, making it ideal for controlling high-current loads such as motors, heaters, and power distribution systems.

One of the standout characteristics of the BTS50080-1TEB is its intelligent diagnostic capability. The device provides real-time feedback on operational status, including load current measurement via a dedicated analog output pin. It also detects fault conditions such as overload, short-circuit, and overtemperature, promptly notifying the system microcontroller to take preventive action. This enhances system reliability and simplifies maintenance and debugging.

Comprehensive protection features are embedded to safeguard both the switch and the broader system. These include protection against overvoltage (including load-dump), reverse polarity, and electrostatic discharge (ESD). The device also incorporates an active overcurrent limitation and an automatic restart function after a fault condition is resolved, ensuring continuous and safe operation under varying environmental and electrical conditions.

Housed in a thermally efficient PG-TO-263-7 package, the BTS50080-1TEB offers excellent thermal performance, which is critical for high-current applications. Its low on-state resistance (R_DS(on)) minimizes power losses and improves overall energy efficiency. This makes it particularly suitable for 12 V and 24 V battery-fed systems where thermal management and energy conservation are paramount.

In summary, the Infineon BTS50080-1TEB exemplifies modern smart power switching with its blend of high performance, integrated safety functions, and detailed diagnostics. It is an excellent solution for designers seeking to improve system durability, safety, and intelligence in demanding environments.

ICGOOODFIND: The BTS50080-1TEB from Infineon is a highly integrated smart high-side switch that delivers superior current handling, advanced diagnostics, and multilayer protection in a thermally optimized package—ideal for next-generation automotive and industrial power systems.

Keywords:

Smart High-Side Switch

Diagnostic Features

Overcurrent Protection

Thermal Efficiency

Automotive Grade