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IRLI3705NPBF

IRLI3705NPBF Description

The IRLI3705NPBF from Infineon Technologies is an N-channel HEXFET® power MOSFET designed for high-efficiency switching applications. With a 55V drain-to-source voltage (Vdss) and 52A continuous drain current (Id), this device delivers robust performance in power management circuits. Its low on-resistance (Rds(on)) of 10mΩ at 10V gate drive ensures minimal conduction losses, making it ideal for high-current applications. The MOSFET operates with a gate threshold voltage (Vgs(th)) of 2V, enabling compatibility with low-voltage drive circuits. Packaged in a TO-220AB FP through-hole format, it offers excellent thermal dissipation, supporting a maximum power dissipation of 58W (Tc).

IRLI3705NPBF Features

• Low Rds(on): 10mΩ @ 28A, 10V for reduced conduction losses.
• High Current Handling: 52A continuous drain current (Tc) for demanding applications.
• Fast Switching: Optimized gate charge (Qg) of 98nC @ 5V and input capacitance (Ciss) of 3600pF @ 25V for efficient high-frequency operation.
• Robust Gate Drive: ±16V maximum gate-source voltage (Vgs) for flexibility in drive circuitry.
• Thermal Efficiency: TO-220AB FP package ensures effective heat dissipation.
• Compliance: ROHS3 compliant and REACH unaffected, meeting environmental standards.

IRLI3705NPBF Applications

This MOSFET excels in:

• DC-DC Converters: High-efficiency buck/boost circuits due to low Rds(on).
• Motor Control: Ideal for H-bridge configurations in brushed/BLDC motor drives.
• Power Supplies: Suitable for SMPS and synchronous rectification applications.
• Automotive Systems: Used in LED drivers, battery management, and load switches where reliability is critical.
• Industrial Equipment: High-current switching in solenoids, relays, and inverters.

Conclusion of IRLI3705NPBF

The IRLI3705NPBF is a high-performance HEXFET® MOSFET offering low conduction losses, high current capability, and robust thermal management. While marked as obsolete, its specifications make it a strong candidate for legacy designs or replacements in power conversion, motor control, and industrial systems. Engineers seeking a cost-effective, high-efficiency solution for medium-voltage applications will find this MOSFET a reliable choice.