Diodes Incorporated DMP2039UFDE4-7

Overview

DMP2039UFDE4-7 from Diodes Incorporated is a 25V P-channel enhancement-mode MOSFET in a 2.0×2.0mm X2-DFN2020-6 package, rated for -7.3A continuous drain current at V_GS = -4.5V, with R_DS(on) of 26mΩ (max), qualified to AEC-Q101, and optimized for low-profile load switching in battery management systems.

For engineers reviewing the DMP2039UFDE4-7 datasheet, DMP2039UFDE4-7 pinout, DMP2039UFDE4-7 application, or DMP2039UFDE4-7 equivalent, key selection criteria include gate threshold voltage (-0.4V to -1.0V), ESD-protected gate, thermal resistance (R_θJA = 52°C/W with thermal vias), and compliance with RoHS, halogen-free, and "Green" material standards.

Technical Context

This MOSFET operates as a high-side or low-side load switch in DC power paths, leveraging its negative gate threshold and low R_DS(on) to minimize conduction loss in portable and automotive subsystems. Its design integrates an internal source-drain protection diode and ESD protection on the gate terminal.

The device uses silicon process optimization to balance R_DS(on) and gate charge (Q_g = 28.2nC), enabling fast switching with low drive requirements. Thermal performance is specified for both minimal-pad (R_θJA = 182°C/W) and enhanced thermal layout (R_θJA = 52°C/W) configurations.

Key Specifications

Pinout & Package

Package: X2-DFN2020-6, 2.0mm × 2.0mm × 0.4mm profile, 6-terminal bottom-exposed pad, NiPdAu-plated terminals, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar P-channel load switch applications.

Compared with DMG2305U-7 and SI2301DDS-T1-GE3, DMP2039UFDE4-7 delivers superior R_DS(on) and automotive qualification in a thermally efficient 2.0×2.0mm DFN, making it optimal for high-current, high-reliability load switching where thermal vias and PCB copper are available.

Availability

DMP2039UFDE4-7 is available at Aetrix Electronics and suitable for smartphone power sequencing, automotive body control modules, and USB-C power delivery sink applications requiring stable component supply, AEC-Q101 compliance, and low-profile thermal management.

Supply support for DMP2039UFDE4-7 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, specializing in high-efficiency power management, signal integrity, and protection solutions for industrial, automotive, and consumer markets.

DMP2039UFDE4-7 belongs to Diodes' X2-DFN power MOSFET product line, engineered specifically for compact, high-reliability load switching in battery-powered and automotive systems demanding low R_DS(on), low profile, and AEC-Q101 validation.

FAQ

What is the maximum continuous drain current for DMP2039UFDE4-7 at 70°C ambient?

The maximum continuous drain current is -5.8A at T_A = 70°C with V_GS = -4.5V and standard FR-4 layout (2oz copper, thermal vias). This derating reflects junction-to-ambient thermal resistance of 182°C/W under minimal pad conditions; with enhanced thermal layout, current capability rises to -7.3A at 70°C due to improved R_θJA = 52°C/W.

Does DMP2039UFDE4-7 require a gate resistor for typical switching applications?

A gate resistor is recommended to dampen ringing and control slew rate, especially at high-frequency switching (>100kHz). With Q_g = 28.2nC and typical gate driver output impedance, a 10Ω resistor limits peak gate current to ~450mA while maintaining <20ns rise time-sufficient for most load-switching and PWM applications below 500kHz.

Can DMP2039UFDE4-7 be used in reverse-battery protection circuits?

Yes-its P-channel topology and integrated source-drain diode allow direct implementation in reverse-polarity protection. When placed high-side with source to battery, the body diode blocks reverse current until gate is pulled low; full conduction occurs once V_GS exceeds threshold, minimizing forward drop compared to discrete diode solutions.

Is the exposed thermal pad electrically isolated or connected to a terminal?

The exposed pad is electrically connected to the drain terminal and serves as the primary thermal and electrical path for the drain. It must be soldered to a PCB copper pour tied to the system drain net; floating or grounded pads will compromise both thermal performance and electrical functionality, risking latch-up or premature failure.