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IRFR7740TRPBF

IRFR7740TRPBF Description

The IRFR7740TRPBF is an N-channel HEXFET® power MOSFET from Infineon Technologies, designed for high-efficiency switching applications. With a 75V drain-to-source voltage (Vdss) and 87A continuous drain current (Id), it delivers robust performance in power management circuits. This surface-mount device features a low on-resistance (Rds(on)) of 7.2mΩ at 10V gate drive, minimizing conduction losses. Though marked as obsolete, its specifications remain competitive for legacy designs requiring high-current handling and thermal stability (140W max power dissipation at case temperature).

IRFR7740TRPBF Features

• Low Rds(on): 7.2mΩ @ 52A, 10V ensures reduced power loss in high-current paths.
• High Current Capacity: 87A (Tc) rating suits demanding loads.
• Fast Switching: Optimized gate charge (126nC @ 10V) and input capacitance (4430pF @ 25V) balance speed and efficiency.
• Robust Gate Drive: Supports ±20V Vgs, enhancing noise immunity.
• Thermal Performance: 140W dissipation (Tc) with DPAK packaging aids heat management.
• Compliance: ROHS3 and REACH unaffected, meeting environmental standards.

IRFR7740TRPBF Applications

Ideal for:

• DC-DC Converters: Low Rds(on) minimizes losses in buck/boost topologies.
• Motor Drives: High current handling for brushed/brushless motor control.
• Power Supplies: Efficient switching in SMPS and ORing applications.
• Battery Management: Protects circuits in high-discharge systems (e.g., EVs, tools).
• Industrial Automation: Reliable performance in PLCs and inverters.

Conclusion of IRFR7740TRPBF

While obsolete, the IRFR7740TRPBF remains a viable choice for designs prioritizing high current, low resistance, and thermal resilience. Its HEXFET® technology and DPAK packaging make it suitable for legacy or cost-sensitive power electronics. Engineers should evaluate alternatives for new designs but can leverage this MOSFET’s proven performance in existing systems.