Infineon Technologies AUIRF7379QTR

Overview

AUIRF7379QTR from Infineon is an automotive-qualified dual-channel power MOSFET in SO-8 package, integrating one N-channel (30 V, 5.8 A, R_DS(on) = 38 mΩ @ 10 V) and one P-channel (−30 V, −4.3 A, R_DS(on) = 70 mΩ @ −10 V) device. It operates up to 150°C junction temperature, supports logic-level gate drive, and delivers fast switching with low gate charge (25 nC total) for bidirectional load control in automotive body electronics.

For engineers reviewing the AUIRF7379QTR datasheet, AUIRF7379QTR pinout, AUIRF7379QTR application, or AUIRF7379QTR equivalent, key selection criteria include dual-channel complementary operation, SO-8 thermal performance (R_θJA = 50 °C/W), avalanche ruggedness, and AEC-Q101 qualification for under-hood power management.

Technical Context

This dual MOSFET implements complementary N- and P-channel HEXFET® silicon in a single SO-8 surface-mount package, enabling half-bridge or high-side/low-side configurations without discrete pairing. Its planar process yields low on-resistance per die area and stable R_DS(on) over temperature (±0.032 V/°C for N-ch, −0.037 V/°C for P-ch).

Dynamic characteristics include fast turn-on (t_d(on) = 6.8 ns N-ch, 11 ns P-ch) and turn-off (t_d(off) = 22 ns N-ch, 25 ns P-ch) times with low output capacitance (C_oss = 180 pF N-ch, 200 pF P-ch), supporting efficient PWM control in 12 V automotive systems up to 200 kHz.

Key Specifications

Pinout & Package

SO-8 package with exposed drain pads for enhanced thermal dissipation; dual-die layout supports independent channel routing and minimizes parasitic inductance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel automotive MOSFET applications.

Compared with IPB77N04S4-02 and SP8M8, AUIRF7379QTR uniquely delivers matched N/P complementary operation in one SO-8 package-critical for compact half-bridge designs where gate timing alignment, thermal coupling, and layout symmetry directly impact EMI and efficiency.

Availability

AUIRF7379QTR is available at Aetrix Electronics and suitable for automotive body control modules, LED lighting systems, and engine management subsystems requiring stable component supply and AEC-Q101 compliance.

Supply support for AUIRF7379QTR 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 electronics, and industrial control ICs, with global manufacturing and qualification infrastructure.

AUIRF7379QTR belongs to Infineon's automotive-qualified HEXFET® Power MOSFET product line, engineered specifically for space-constrained, thermally demanding 12 V vehicle subsystems requiring robust bidirectional switching.

FAQ

What is the maximum continuous drain current for each channel at 100°C ambient?

At T_A = 100°C, the N-channel supports 3.1 A and the P-channel supports −2.3 A, derated from their 25°C ratings (5.8 A and −4.3 A) using the linear derating factor of 0.02 W/°C and R_θJA = 50 °C/W. These values assume PCB-mounted conditions with adequate copper pour.

Does AUIRF7379QTR require a gate resistor for safe operation?

A gate resistor (typically 10–47 Ω) is recommended to dampen ringing and limit peak gate current during switching. The device's Q_g = 25 nC and C_iss = 520 pF (N-ch) make it susceptible to oscillation without proper gate control, especially in high-di/dt automotive environments.

Can AUIRF7379QTR be used in a synchronous buck converter?

No - AUIRF7379QTR integrates complementary N- and P-channel FETs but lacks the optimized timing, matched R_DS(on), and integrated bootstrap circuitry required for synchronous buck topologies. It is designed for half-bridge, load-switch, and bidirectional drive-not DC-DC power stage replacement.

Is the SO-8 package lead-free and RoHS compliant?

Yes - AUIRF7379QTR is lead-free and RoHS compliant per EU Directive 2011/65/EU, with all terminations meeting JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) and reflow profile compatibility up to 260°C peak.