Infineon TLE75080EMDXUMA1: High-Performance 80V LIN System Basis Chip for Automotive Applications

The relentless drive towards enhanced vehicle electrification, connectivity, and automation demands robust and intelligent power management solutions. Addressing these needs, the Infineon TLE75080EMDXUMA1 stands out as a highly integrated System Basis Chip (SBC) engineered to provide a reliable and efficient electronic heart for sophisticated automotive modules.

This SBC is a powerhouse of integration, consolidating multiple critical functions into a single, compact VQFN-48 package. Its core is built around a high-performance 80V LIN transceiver, which provides a robust physical layer for local interconnect network (LIN) communication. This high voltage tolerance is crucial for automotive environments, offering exceptional resilience against load-dump and voltage transients commonly found in 12V automotive power systems, thereby ensuring uninterrupted and error-free data exchange between electronic control units (ECUs).

Beyond communication, the TLE75080EMDXUMA1 excels as a power manager. It features two independent, configurable voltage regulators. A primary 500mA high-voltage regulator powers the microcontroller or other system ICs, while a secondary 150mA regulator can supply additional peripherals or serve as a backup. This dual-regulator architecture enhances design flexibility and supports low-power modes essential for modern, energy-conscious applications. Furthermore, the chip incorporates four high-side switches with advanced diagnostic capabilities (e.g., load current feedback, open-load, and short-circuit detection), allowing for the direct and protected control of actuators like LEDs or sensors.

A key strength of this SBC is its comprehensive suite of safety and diagnostic features. With built-in monitoring for over-voltage, under-voltage, and over-temperature conditions, it provides a critical layer of protection for the entire application. Its fail-safe outputs and support for various microcontroller watchdog modes ensure that the system can respond predictably even in fault scenarios, aligning with stringent automotive safety requirements.

ICGOOODFIND: The Infineon TLE75080EMDXUMA1 is an exemplary System Basis Chip that masterfully combines a robust 80V LIN interface, efficient dual voltage regulation, and protected high-side drivers. Its high level of integration, coupled with extensive diagnostic and protection mechanisms, makes it an ideal, space-saving foundation for enhancing the reliability and performance of a wide array of automotive body and convenience applications, from door control modules and seat controllers to sensor nodes and smart junction boxes.

Keywords: System Basis Chip (SBC), 80V LIN Transceiver, Voltage Regulators, Automotive Applications, Diagnostic Features.