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AUIR3313S

AUIR3313S Description

The AUIR3313S 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 integrates a 1:1 input-to-output ratio, delivering efficient power distribution with a 23A maximum output current and an exceptionally low 5.5mΩ typical Rds(on). Operating within a 6V to 32V load voltage range, it eliminates the need for an external supply voltage (Vcc/Vdd), simplifying system design. Packaged in a D2PAK surface-mount form factor, the AUIR3313S is ideal for high-current switching applications requiring reliability and compactness.

AUIR3313S Features

• High-Side Configuration: Enables direct control of power to loads without additional circuitry.
• Automotive-Grade Reliability: Meets stringent automotive standards for durability and performance.
• Low Rds(on): Minimizes power losses and improves efficiency in high-current applications.
• Integrated Protections: Features adjustable current limiting and over-temperature fault protection for enhanced system safety.
• Wide Voltage Range: Supports 6V–32V loads, making it versatile for 12V/24V automotive systems.
• Surface-Mount D2PAK: Optimizes thermal performance and space efficiency on PCBs.

AUIR3313S Applications

The AUIR3313S excels in automotive and industrial applications, including:

• Electric Power Steering (EPS) Systems: High-current handling ensures reliable motor control.
• DC Motor Drives: Efficient switching for actuators, pumps, and fans.
• Battery Management Systems (BMS): Protects against overcurrent and thermal faults.
• LED Lighting Drivers: Stable performance for high-power LED arrays.
• Solid-State Relays Replacement: Offers faster switching and longer lifespan than mechanical relays.

Conclusion of AUIR3313S

The AUIR3313S stands out as a high-performance, automotive-qualified power switch, combining low conduction losses, robust protection features, and a compact design. Its high current capability and wide operating voltage make it a preferred choice for mission-critical applications in automotive and industrial sectors. While marked as obsolete, its legacy design remains relevant for systems prioritizing efficiency and reliability. Engineers seeking a proven solution for high-side switching should consider the AUIR3313S for its balance of performance and integration.