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Diodes Incorporated DMN4031SSDQ-13
- Part No.:
- DMN4031SSDQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- FET, MOSFET Arrays
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DMN4031SSDQ-13.pdf
- Description:
- MOSFET 2N-CH 40V 5.2A 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
DMN4031SSDQ-13 from Diodes Incorporated is a dual N-channel enhancement-mode MOSFET in SO-8 package, rated for 40V VDSS, 31mΩ RDS(ON) @ 10VGS, and 7.0A continuous drain current at +25°C. It is AEC-Q101 qualified, PPAP-capable, and designed for automotive motor controls, backlighting, and DC-DC converters.
For engineers reviewing the DMN4031SSDQ-13 datasheet, DMN4031SSDQ-13 pinout, DMN4031SSDQ-13 application, or DMN4031SSDQ-13 equivalent, key selection criteria include low RDS(ON) at 4.5VGS (50mΩ), thermal resistance (48°C/W on 1"×1" FR-4), and dual-channel layout for space-constrained power stages.
Technical Context
This dual MOSFET integrates two matched N-channel silicon devices in a single SO-8 package with independent gate, source, and drain terminals per channel. Its design supports synchronous rectification and half-bridge topologies where gate drive isolation and thermal coupling between channels are critical.
The device features a gate threshold voltage of 1.6–3.0V, total gate charge of 18.6nC at 10VGS, and exhibits normalized RDS(ON) drift of ≤1.6× over –55°C to +150°C junction range-enabling stable operation in under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 40V - Maximum blocking voltage before avalanche conduction; defines safe operating range in 12V/24V automotive systems. |
| RDS(ON) @ 10VGS | 31mΩ - On-resistance measured at 6A ID; enables <186mW conduction loss per channel at 7A. |
| RDS(ON) @ 4.5VGS | 50mΩ - Critical for logic-level drive compatibility with 3.3V/5V microcontrollers in compact power modules. |
| ID Continuous @ +25°C | 7.0A - Sustained current capability with 2.6W power dissipation on high-copper PCB; supports >10W load switching. |
| Qg @ 10VGS | 18.6nC - Total gate charge determining driver strength requirement; compatible with standard gate drivers like UCC27531. |
| TJ Range | –55°C to +150°C - Extended junction temperature rating ensures reliability in engine compartment and infotainment power supplies. |
| Ciss | 945pF - Input capacitance affecting switching speed and EMI; optimized for <100ns turn-on delay in PWM applications. |
Pinout & Package
Package: SO-8 surface-mount plastic package with matte tin annealed terminals, UL 94V-0 molding compound, and moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G1) | Gate of Channel 1 | High-impedance control input; requires ≥1.6V to initiate conduction; referenced to S1. |
| 2 (S1) | Source of Channel 1 | Return path for Channel 1 current; electrically isolated from S2 but thermally coupled in shared die. |
| 3 (D1) | Drain of Channel 1 | Main current output node; connected to high-side or low-side switch node depending on topology. |
| 4 (D2) | Drain of Channel 2 | Independent high-current output; enables dual-switch configurations without external paralleling. |
| 5 (S2) | Source of Channel 2 | Separate return path for Channel 2; allows floating-source or common-source configurations. |
| 6 (G2) | Gate of Channel 2 | Independent control terminal; supports asynchronous or complementary drive schemes. |
| 7, 8 (Exposed Pad) | Thermal pad / Drain connection | Internally tied to D1 and D2; must be soldered to PCB copper pour for thermal management (RθJA = 48°C/W). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD testing per stress test plan. |
| Low RDS(ON) at 4.5VGS | 50mΩ enables direct drive from 5V MCU GPIOs without level-shifting, reducing BOM count in body electronics. |
| Dual-channel integration | SO-8 footprint replaces two discrete MOSFETs, saving >30% board area in motor driver H-bridges. |
| Green packaging | Halogen- and antimony-free compound (<900ppm Br/Cl, <1000ppm Sb) meets automotive RoHS 3 and ELV requirements. |
| Thermal pad design | Exposed drain pad improves heat transfer to PCB; achieves 48°C/W RθJA with minimal copper area. |
Applications
| Automotive Motor Control | LED Backlighting Driver |
|---|---|
Use Scenario: Driving 12V brushed DC motors in seat adjusters, HVAC actuators, and window lift modules. IC Role / Device Role / Timing Role: Dual N-channel MOSFET configured as half-bridge to deliver bidirectional current and regenerative braking. Use Value: 50mΩ RDS(ON) at 4.5VGS minimizes I²R losses during PWM commutation, extending battery life in 12V systems. | Use Scenario: Constant-current dimming of multi-string LED arrays in instrument clusters and center displays. IC Role / Device Role / Timing Role: Low-side switch controlling LED cathode current with fast turn-off (<3.1ns fall time) to suppress ghosting. Use Value: 18.6nC Qg enables clean 1kHz–20kHz PWM dimming without gate driver saturation or shoot-through risk. |
| Automotive DC-DC Converter | Power Management Unit (PMU) |
Use Scenario: Synchronous rectification in 12V-to-5V/3.3V buck converters for ADAS camera modules and radar ECUs. IC Role / Device Role / Timing Role: Secondary-side switch replacing Schottky diodes to improve efficiency above 85% at 3A load. Use Value: 31mΩ RDS(ON) reduces conduction loss by >60% vs. 40V Schottky, directly increasing converter efficiency by 2.1% at full load. | Use Scenario: Load switching and fault protection in centralized vehicle power distribution units. IC Role / Device Role / Timing Role: Dual-channel high-side switch managing isolated power domains for infotainment, telematics, and gateway subsystems. Use Value: Independent gate control allows staggered turn-on to limit inrush current, while AEC-Q101 qualification ensures field reliability over 15-year vehicle lifecycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual N-channel MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN3031LSD-13 | 30V VDSS, 31mΩ @ 10VGS, same SO-8 package but single-channel; lacks dual integration. | Suitable only for single-switch applications; requires two devices and extra routing for dual functionality. | Select when lower voltage rating suffices and board layout permits discrete placement. |
| NTMFS4C09NT1G | 40V VDSS, 3.2mΩ @ 10VGS (single-channel), PowerPAK SO-8; no dual configuration. | Higher performance per channel but no integrated dual topology; larger footprint per switch. | Choose for ultra-low RDS(ON) in single-channel high-efficiency designs where space allows separate devices. |
Compared with DMN3031LSD-13 and NTMFS4C09NT1G, the DMN4031SSDQ-13 uniquely delivers dual-channel 40V switching in one SO-8 package with AEC-Q101 validation-reducing component count, PCB area, and thermal coupling challenges in automotive power stages.
Availability
DMN4031SSDQ-13 is available at Aetrix Electronics and suitable for automotive motor control, LED backlighting, and DC-DC converter designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DMN4031SSDQ-13 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, manufacturing, and sales operations across Asia, Europe, and North America.
The DMN4031SSDQ-13 belongs to Diodes' AEC-Q101-qualified automotive MOSFET product line, engineered specifically for high-reliability power switching in engine control, body electronics, and infotainment systems.
FAQ
What is the maximum continuous drain current for DMN4031SSDQ-13 at +70°C ambient?
At TA = +70°C, the continuous drain current is 5.6A when mounted on a 1"×1" FR-4 PCB with high-coverage 1 oz. copper (Note 6). This derating reflects thermal limits imposed by junction-to-ambient resistance of 48°C/W and maximum TJ of +150°C.
Is DMN4031SSDQ-13 suitable for synchronous rectification in buck converters?
Yes-the device's 31mΩ RDS(ON) at 10VGS and 18.6nC total gate charge enable efficient synchronous rectification in 12V-input buck converters up to 5A output. Its dual-channel structure supports complementary switching without cross-conduction risk when properly driven.
Does DMN4031SSDQ-13 have integrated ESD protection?
No internal ESD protection diodes are specified in the datasheet. Gate-source leakage is limited to ±100nA at ±20V, and system-level ESD protection (e.g., TVS diodes on gate lines) is recommended per AEC-Q101 application guidance for automotive environments.
How is the exposed thermal pad connected internally?
The exposed pad (pins 7 and 8) is internally connected to both drains (D1 and D2). It must be soldered to a PCB copper pour tied to the drain net to achieve the specified 48°C/W thermal resistance; floating or grounded pads degrade thermal performance and may cause premature failure.
DMN4031SSDQ-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- MOSFET (Metal Oxide)
- Configuration:
- 2 N-Channel (Dual)
- FET Feature:
- -
- Drain to Source Voltage (Vdss):
- 40V
- Current - Continuous Drain (Id) @ 25°C:
- 5.2A
- Rds On (Max) @ Id, Vgs:
- 31mOhm @ 6A, 10V
- Vgs(th) (Max) @ Id:
- 3V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 18.6nC @ 10V
- Input Capacitance (Ciss) (Max) @ Vds:
- 945pF @ 20V
- Power - Max:
- 1.42W
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
DMN4031SSDQ-13 FAQ
1.How can I place an order for DMN4031SSDQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMN4031SSDQ-13 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DMN4031SSDQ-13 reliable?
The price and inventory of DMN4031SSDQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMN4031SSDQ-13 is usually 5 days.
3.What payment methods are accepted for DMN4031SSDQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMN4031SSDQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMN4031SSDQ-13?
DMN4031SSDQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMN4031SSDQ-13 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DMN4031SSDQ-13?
For technical support, including DMN4031SSDQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMN4031SSDQ-13 requirements.
6.How does Aetrix verify that DMN4031SSDQ-13 is sourced from the original manufacturer or authorized distributors?
All DMN4031SSDQ-13 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DMN4031SSDQ-13 meets industry standards.
7.What is the process for return or replacement of DMN4031SSDQ-13?
All DMN4031SSDQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMN4031SSDQ-13, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DMN4031SSDQ-13 part is unused and in its original packaging.
Return procedure for DMN4031SSDQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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