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AUIR3315

AUIR3315 Description

The AUIR3315 from Infineon Technologies is a high-side power switch designed for automotive-grade applications, offering robust performance in demanding environments. This N-channel MOSFET-based driver features a 1:1 input-to-output ratio and operates with a load voltage range of 6V to 32V, making it suitable for 12V/24V automotive systems. With an output current capability of up to 14A and a low Rds(on) of 15mΩ (typical), it ensures efficient power distribution with minimal conduction losses. The device integrates adjustable current limiting and over-temperature protection, enhancing system reliability. Packaged in a TO-220 through-hole format, it is ideal for designs requiring high-power handling and thermal dissipation.

AUIR3315 Features

• High-Side Configuration: Simplifies circuit design by eliminating the need for an external supply (Vcc/Vdd not required).
• Automotive-Grade Compliance: Meets stringent automotive reliability standards.
• Low Rds(on): 15mΩ typ. reduces power dissipation and improves efficiency.
• Integrated Protections: Adjustable current limiting and over-temperature shutdown safeguard against faults.
• Wide Voltage Range: Supports 6V–32V loads, compatible with 12V/24V systems.
• High Current Handling: 14A continuous output current for demanding applications.
• Through-Hole TO-220 Package: Robust thermal performance for high-power applications.

AUIR3315 Applications

• Automotive Load Switching: Ideal for controlling high-current loads like LED lighting, motors, and solenoids in vehicles.
• Power Distribution Modules: Used in fuse boxes, relay replacements, and battery management systems.
• Industrial Systems: Suitable for PLC outputs, actuator drives, and industrial automation where reliability is critical.
• Protection Circuits: Leverages its fault protections for overcurrent and thermal management in harsh environments.

Conclusion of AUIR3315

The AUIR3315 stands out as a high-efficiency, automotive-qualified power switch, combining low conduction losses with robust fault protection. Its high-current capability and wide voltage range make it a versatile choice for automotive and industrial applications. While marked as obsolete, its design advantages—such as integrated protections and TO-220 packaging—ensure it remains a reliable solution for legacy systems or designs prioritizing durability. For engineers seeking a high-performance, high-side driver, the AUIR3315 delivers a compelling balance of power handling, efficiency, and reliability.