Infineon BGX50AE6327HTSA1: 40 V Digital Low-Side Switch for Automotive Applications

The Infineon BGX50AE6327HTSA1 is a state-of-the-art digital low-side power switch engineered to meet the rigorous demands of modern automotive electronic systems. Designed to control resistive, capacitive, and inductive loads, this robust device integrates advanced protection, diagnostic, and control features into a single compact package, making it an ideal solution for a wide array of applications, from body control modules and powertrain systems to interior and comfort features.

A key attribute of this switch is its high-voltage capability of 40 V, which provides ample headroom for the demanding 12 V automotive battery systems, ensuring reliable operation during load-dump and other voltage transient events. The device features a very low typical on-state resistance (RDS(on)) of 50 mΩ, which minimizes conduction losses and heat generation, leading to superior efficiency and thermal performance. This is critical for applications where power dissipation and thermal management are primary concerns.

The BGX50AE6327HTSA1 excels in diagnostic intelligence. It offers comprehensive protection features including overtemperature shutdown, overcurrent limitation, and short-circuit protection. Furthermore, its digital interface provides real-time feedback on status conditions such as open-load detection, both in the on and off states, and overtemperature pre-warning. This level of diagnostic capability is essential for functional safety and is a cornerstone for designing systems that comply with standards like ISO 26262.

Housed in a space-saving, surface-mountable PG-TSDSO-14 package, the switch is designed for automated assembly and offers excellent thermal characteristics. Its AEC-Q100 qualification guarantees its performance and reliability in the harsh automotive environment, enduring extreme temperatures, humidity, and vibration.

ICGOOODFIND: The Infineon BGX50AE6327HTSA1 stands out as a highly integrated, intelligent, and robust solution for automotive low-side switching. Its combination of high voltage tolerance, low power loss, and extensive diagnostic features makes it a superior choice for designers aiming to enhance system reliability, efficiency, and safety in next-generation vehicles.

Keywords: Automotive, Low-Side Switch, Diagnostic Features, 40 V, AEC-Q100.