Infineon Technologies IRLH6224TRPBF

Overview

IRLH6224TRPBF from Infineon Technologies is a 20 V, 80 A N-channel HEXFET Power MOSFET in PQFN 5×6 mm package, optimized for high-current battery protection switches with R_DS(on) of 2.3 mΩ @ V_GS = 10 V and 3.0 mΩ @ V_GS = 4.5 V. It features low thermal resistance (R_θJC(Bottom) = 2.4 °C/W), 100% R_g tested gate, and MSL1 industrial qualification.

For engineers reviewing the IRLH6224TRPBF datasheet, IRLH6224TRPBF pinout, IRLH6224TRPBF application, or IRLH6224TRPBF equivalent, key selection criteria include its 44 nC typical gate charge, 1.2 mm profile enabling high power density, body diode reverse recovery time of 38–57 ns, and compatibility with surface-mount manufacturing for battery management systems.

Technical Context

This device operates as a low-side synchronous rectifier or load switch in portable and automotive battery protection circuits. Its 20 V V_DS rating supports Li-ion and multi-cell battery stacks up to 16 V nominal, while the 0.8 V typical gate threshold enables direct drive from 3.3 V or 5 V controllers without level shifting.

The PQFN 5×6 mm package uses bottom-side thermal pad for direct PCB heat transfer, achieving 2.4 °C/W junction-to-case (bottom) thermal resistance. The 44 nC total gate charge and 8.5 nC gate-to-drain charge support efficient switching at frequencies up to 500 kHz in DC-DC and OR-ing applications.

Key Specifications

Pinout & Package

PQFN 5×6 mm package with exposed thermal pad on bottom side; 3-pin configuration (Drain, Source, Gate) with standard industry pinout for drop-in compatibility across vendors.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel power MOSFET applications.

Compared with IRLH6224TRPBF, the TR2PBF variant offers identical electrical performance but smaller reel quantity for flexibility, while the SI7157DP trades lower gate charge for higher thermal resistance and larger footprint-making it suitable only where PQFN assembly infrastructure is unavailable.

Availability

IRLH6224TRPBF is available at Aetrix Electronics and suitable for battery protection circuits, USB-C PD power paths, motor driver half-bridges, and power OR-ing modules requiring stable component supply and long-term production continuity.

Supply support for IRLH6224TRPBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs and discrete devices.

The HEXFET Power MOSFET product line targets high-efficiency, high-current switching applications including battery protection, OR-ing, and motor control-designed for minimal conduction and switching losses in compact form factors.

FAQ

What is the maximum continuous drain current at 100°C case temperature?

The IRLH6224TRPBF supports 40 A continuous drain current when the bottom case temperature is maintained at 100°C, as specified in the Absolute Maximum Ratings table under ID @ TC(Bottom) = 100°C. This derating reflects thermal limits of the PQFN package and PCB thermal design.

Does this MOSFET require a gate resistor for stability?

A gate resistor of 1.8 Ω is recommended per the datasheet's switching time test circuit, as it balances switching speed against ringing and EMI. The device's 2.0 Ω typical gate resistance and 44 nC Q_g make it susceptible to oscillation without controlled gate drive impedance.

Can the body diode be used for reverse polarity protection?

No-the body diode conducts from source to drain, making it unsuitable for reverse polarity protection. For that function, the MOSFET must be placed in series with the positive rail and operated as a high-side switch with appropriate gate biasing, not relying on intrinsic diode conduction.

Is the PQFN 5×6 mm package compatible with standard reflow profiles?

Yes-the IRLH6224TRPBF is qualified to MSL1 and supports JEDEC J-STD-020D reflow profiles, including peak temperatures up to 260°C. Its bottom thermal pad requires solder paste stencil design with ≥50% aperture ratio to ensure void-free thermal interface to the PCB.