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AUIR3320S

AUIR3320S Description

The AUIR3320S from Infineon Technologies is a high-side N-channel power switch designed for automotive-grade applications. This obsolete device features a 1:1 input-to-output ratio and operates with a 6V to 26V load voltage range, making it suitable for robust power distribution systems. Packaged in a D2PAK surface-mount format, it delivers a maximum output current of 45A with an exceptionally low Rds(on) of 3.3mΩ (typical), minimizing power losses. The on/off interface simplifies control, while integrated fault protection (adjustable current limiting and over-temperature shutdown) enhances system reliability.

AUIR3320S Features

• High-Side Configuration: Optimized for direct load control without requiring an external supply (Vcc/Vdd).
• Automotive Compliance: Meets stringent automotive-grade standards for harsh environments.
• Low Rds(on): 3.3mΩ typ. ensures high efficiency and reduced thermal dissipation.
• Robust Protection: Adjustable current limiting and thermal shutdown safeguard against faults.
• D2PAK Package: Offers superior thermal performance and mechanical durability.
• Wide Voltage Range: Supports 6V–26V loads, ideal for 12V/24V automotive systems.

AUIR3320S Applications

• Automotive Power Distribution: Ideal for ECUs, lighting modules, and motor drivers in vehicles.
• Load Switching: Efficiently controls high-current loads like solenoids, relays, and heaters.
• Industrial Systems: Suitable for power management in rugged environments due to its fault tolerance.
• Battery Management: Protects circuits from overcurrent and overtemperature in energy storage systems.

Conclusion of AUIR3320S

The AUIR3320S excels in high-current, high-reliability applications, particularly in automotive and industrial settings. Its low conduction losses, integrated protection, and automotive-grade robustness make it a standout choice despite its obsolete status. Engineers seeking a durable, high-performance power switch for demanding environments will find this device well-suited for legacy designs or replacements in existing systems.

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