Diodes Incorporated DMN4010LFG-7

Overview

DMN4010LFG-7 from Diodes Incorporated is a 40V N-channel enhancement-mode MOSFET in POWERDI® 3333-8 package, featuring 12 mΩ R_DS(ON) at V_GS = 10 V, 11.5 A continuous drain current at T_A = +25°C, and AEC-Q101 qualification for automotive reliability-used as a high-efficiency synchronous rectifier or load switch in DC-DC converters.

For engineers reviewing the DMN4010LFG-7 datasheet, DMN4010LFG-7 pinout, DMN4010LFG-7 application, or DMN4010LFG-7 equivalent, key selection criteria include low on-resistance at 4.5 V gate drive, thermal performance under 2.45 W pulsed power dissipation, body diode recovery charge (Q_rr = 5.4 nC), and compact 3333-8 footprint versus SO-8.

Technical Context

This MOSFET employs planar trench-gate silicon technology optimized for low R_DS(ON) while maintaining fast switching speed (t_D(off) = 36 ns, Q_g = 37 nC at V_GS = 10 V) and robust avalanche capability (E_AS = 37 mJ). Its gate threshold voltage (1.0–3.0 V) supports logic-level and standard 5 V/10 V drive compatibility.

The device integrates a co-packaged body diode with t_rr = 12.2 ns and V_SD = 0.72 V at I_S = 14 A, enabling efficient freewheeling in buck and synchronous boost topologies without external diode addition.

Key Specifications

Pinout & Package

Package: POWERDI® 3333-8 - thermally enhanced 8-pin surface-mount package with exposed drain pad, 3.3 mm × 3.3 mm footprint, 0.8 mm height, and UL 94V-0 molding compound.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DMN4010LFG-7, DMN4010LFG-13 offers identical performance in larger reels for cost-sensitive manufacturing, while DMN3020LFG-7 trades voltage headroom and efficiency for slightly smaller gate charge (24 nC), making it viable only in lower-voltage, lower-power designs.

Availability

DMN4010LFG-7 is available at Aetrix Electronics and suitable for automotive infotainment power supplies, industrial PoE injectors, and USB-C PD source designs requiring stable component supply, AEC-Q101 compliance, and compact thermal management.

Supply support for DMN4010LFG-7 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and Malaysia.

The DMN4010LFG-7 belongs to Diodes' POWERDI® portfolio of high-density power MOSFETs engineered for automotive and industrial DC-DC conversion where board space, thermal resistance, and reliability under transient stress are critical.

FAQ

What is the maximum safe operating junction temperature for DMN4010LFG-7?

The absolute maximum junction temperature is +150°C, and the device is characterized for continuous operation up to this limit. Thermal design must ensure that under worst-case ambient and power dissipation conditions-including 2.45 W pulsed PD-the actual T_J does not exceed +150°C, verified using the 52 °C/W θ_JA value with 2 oz copper thermal pad.

Does DMN4010LFG-7 require a gate resistor for stability in 500 kHz switching?

Yes-a 2.2 Ω to 10 Ω series gate resistor is recommended to dampen ringing caused by its 1.7 Ω intrinsic gate resistance and 1,810 pF C_iss. This prevents unintended turn-on due to dv/dt coupling and ensures clean 5.1 ns turn-on delay and 13 ns rise time in hard-switched buck applications.

Can DMN4010LFG-7 replace an SO-8 MOSFET without PCB redesign?

No-POWERDI 3333-8 has different pad layout, pin numbering, and thermal pad configuration than SO-8. The 3.3 mm × 3.3 mm footprint requires new land pattern per AP02001; direct replacement would cause solder joint failure and thermal derating due to mismatched copper exposure and thermal via placement.

Is the body diode suitable for reverse polarity protection in 24 V systems?

Yes-the integrated body diode supports 2 A continuous forward current and 27 A avalanche current, making it suitable for basic reverse polarity protection when used with appropriate fusing. However, its 0.72 V forward drop at 14 A causes higher loss than dedicated ideal diode controllers, so it's best applied in cost-sensitive, non-critical 24 V input paths.