Infineon TLE75080-ESH: A High-Performance 80V Protected Low-Side Switch

In the realm of automotive and industrial electronics, the demand for robust, efficient, and intelligent power switching solutions continues to grow. Addressing these needs, Infineon Technologies introduces the TLE75080-ESH, a highly integrated protected low-side switch engineered for superior performance in demanding 80V applications. This device exemplifies the advancement in smart power technology, combining high-voltage capability with comprehensive protection features and diagnostic functions.

The TLE75080-ESH is designed to drive resistive, capacitive, and inductive loads—such as valves, relays, lamps, or motors—with utmost reliability. Its 80V maximum operating voltage makes it exceptionally suited for harsh electrical environments commonly found in 24V automotive systems (trucks, agricultural machinery) and industrial automation, where load dump and transients are significant concerns. The core of its performance lies in a low-RDS(on) N-channel power MOSFET, which ensures minimal conduction losses and high energy efficiency, critical for reducing heat generation and improving system reliability.

A key strength of this IC is its comprehensive suite of integrated protection features. These include protection against over-load, short-circuit, over-temperature, and electrostatic discharge (ESD). The sophisticated current limiting mechanism actively protects the chip and the load during fault conditions. Furthermore, its capability to handle inductive kickback energy without an external clamping diode simplifies board design and reduces the overall system cost and component count.

Diagnostic intelligence is another pivotal aspect. The TLE75080-ESH provides precise diagnostic feedback via a status output pin. This feature allows the microcontroller to monitor the switch's status continuously, detecting open-load conditions both in on-state and off-state, as well as signaling overtemperature and overcurrent events. This proactive health monitoring is vital for designing predictive maintenance routines and enhancing system safety.

Housed in a space-saving, thermally enhanced PG-SSO-14 package, the device offers excellent thermal conductivity, enabling efficient dissipation of heat into the PCB. This makes it ideal for applications where board space is at a premium. The combination of high voltage resilience, robust protection, and detailed diagnostics positions the TLE75080-ESH as a premier solution for designers seeking to improve the durability and intelligence of their electronic control units (ECUs).

ICGOOODFIND: The Infineon TLE75080-ESH stands out as a robust and intelligent solution for high-voltage switching, merging high performance with integrated safety and diagnostic features for superior system reliability.

Keywords: Protected Low-Side Switch, 80V Operating Voltage, Integrated Diagnostics, Overload Protection, Automotive Grade.