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Diodes Incorporated DMN2055UQ-13
- Part No.:
- DMN2055UQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DMN2055UQ-13.pdf
- Description:
- MOSFET BVDSS: 8V~24V SOT23 T&R 1
- Quantity:
- Payment:
- Shipping:
Inventory:7,420
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Product details
Overview
DMN2055UQ from Diodes Incorporated is an N-channel enhancement-mode MOSFET optimized for low-voltage power switching, featuring 20V VDSS, 38 mΩ RDS(ON) at 4.5V VGS, 4.8A ID (TA = +25°C), AEC-Q101 qualification, and SOT23 package - deployed in automotive body control modules and portable power rails.
For engineers reviewing the DMN2055UQ datasheet, DMN2055UQ pinout, DMN2055UQ application, or DMN2055UQ equivalent, key selection criteria include gate threshold voltage (0.4–1.0V), low-input capacitance (Ciss = 400 pF), fast switching (tD(ON) = 2.8 ns), thermal resistance (RθJA = 113 °C/W with copper plate), and automotive-grade reliability under IATF 16949 manufacturing.
Technical Context
This MOSFET operates as a single N-channel switch with enhancement-mode gate control, supporting logic-level drive down to 2.5V VGS. Its low RDS(ON) and minimized Ciss/Crss enable high-efficiency DC-DC load switching and battery protection circuits where conduction loss and switching loss must both be tightly controlled.
The device integrates a body diode with VSD = 0.7–1.0V at 1A, enabling synchronous rectification or reverse-polarity protection. Thermal design leverages its 1.2W power dissipation rating on FR-4 with 1-inch² copper, and junction temperature range spans −55°C to +150°C for under-hood automotive use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 20 V - Maximum drain-source blocking voltage for 12V automotive and 5V/3.3V system rail protection. |
| RDS(ON) | 38 mΩ @ 4.5V VGS - Enables ≤170 mW conduction loss at 2A load current in compact SOT23 footprint. |
| ID (TA = 25°C) | 4.8 A - Continuous current capability sufficient for USB PD load switches and LED driver high-side control. |
| Ciss | 400 pF - Low input capacitance reduces gate drive power and enables fast turn-on with minimal RC delay. |
| tD(ON) | 2.8 ns - Short turn-on delay supports >10 MHz PWM operation in high-frequency DC-DC converters. |
| VGS(TH) | 0.4–1.0 V - Ultra-low threshold ensures reliable turn-on from 1.8V/2.5V microcontroller GPIOs without level-shifting. |
| QG | 4.3 nC - Low total gate charge minimizes switching energy and eases drive requirements from low-power controllers. |
Pinout & Package
Package: SOT23 - Surface-mount plastic package (2.4 mm × 1.3 mm × 1.0 mm), moisture sensitivity level 1, matte tin annealed terminals, UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Source) | Current return path for N-channel conduction | Connected to ground or low-side reference; internal body diode cathode ties to drain. |
| 2 (Gate) | Control terminal for channel formation | Accepts logic-level voltage (≥2.5V) to fully enhance; requires <4.3 nC charge for full transition. |
| 3 (Drain) | Main current output terminal | Connects to load or supply rail; withstands 20V transient spikes and conducts up to 4.8A continuously. |
Key Features
| Feature | Design Value |
|---|---|
| Low RDS(ON) at 2.5V VGS | 45 mΩ - Enables direct drive from 2.5V microcontrollers without gate boosting, reducing BOM count. |
| Fast switching with low QGD | 4.8 nC - Minimizes Miller plateau time, improving efficiency in high-frequency (>1 MHz) switching applications. |
| AEC-Q101 qualified | Qualified per stress test standard for automotive discrete semiconductors - supports PPAP submission and IATF 16949 traceability. |
| Green, halogen-free construction | <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - Meets automotive OEM environmental compliance mandates (e.g., BMW GS95024-3). |
| Low leakage performance | IDSS ≤ 1.0 µA @ 20V - Reduces standby power loss in always-on automotive subsystems (e.g., CAN wake-up circuits). |
Applications
| Automotive Body Control Module | USB-C Power Delivery Switch |
|---|---|
|
Use Scenario: Controlling 12V accessory loads (e.g., interior lighting, mirror heaters) in vehicle door modules. IC Role / Device Role / Timing Role: High-side load switch managing power delivery with overcurrent and thermal foldback. Use Value: 38 mΩ RDS(ON) limits voltage drop to <95 mV at 2.5A, preserving headroom for downstream regulators and sensors. |
Use Scenario: Enabling/disabling VBUS paths in USB-C receptacles supporting 3A/5V and 3A/9V profiles. IC Role / Device Role / Timing Role: Low-side power switch with fast turn-off (<20 ns tD(OFF)) to meet USB PD fault response timing. Use Value: 2.8 ns tD(ON) and 4.4 ns tF ensure sub-100 ns fault isolation, meeting USB PD 3.1 safety window requirements. |
| Portable Medical Sensor Node | Industrial PLC Digital Output |
|
Use Scenario: Power gating of BLE transceivers and analog front-ends in battery-powered wearable monitors. IC Role / Device Role / Timing Role: Load switch activated by MCU GPIO to reduce quiescent current during sleep mode. Use Value: IDSS ≤ 1.0 µA and VGS(TH) ≤ 1.0V allow reliable activation from 1.8V MCUs while minimizing leakage-induced battery drain. |
Use Scenario: Driving 24V solenoid valves and indicator LEDs in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Discrete output stage providing galvanically isolated switching via optocoupler-driven gate. Use Value: 20V VDSS and 150°C TJ(max) support operation in hot industrial enclosures with 40K temperature rise margin above ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel logic-level MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN2056UQ-13 | Same SOT23 package; 20V VDSS, but higher RDS(ON) = 45 mΩ @ 4.5V, lower ID = 4.2A | Suitable for cost-sensitive non-automotive applications where 15% higher conduction loss is acceptable | Select when AEC-Q101 qualification is not required and thermal margin exceeds 10°C |
| AO3400A | 20V VDSS, RDS(ON) = 45 mΩ @ 4.5V, no AEC-Q101 qualification, higher Ciss = 640 pF | Targeted at consumer electronics; lacks PPAP support and automotive process controls | Prefer for commercial-grade designs with relaxed reliability and traceability requirements |
Compared with DMN2055UQ, DMN2056UQ offers identical packaging and qualification but trades 18% higher RDS(ON) for lower unit cost, while AO3400A provides broader distributor availability but omits automotive process validation and thermal robustness.
Availability
DMN2055UQ-13 is available at Aetrix Electronics and suitable for automotive body electronics, USB-C power delivery systems, portable medical devices, and industrial digital outputs requiring stable component supply across multi-year production cycles.
Supply support for DMN2055UQ-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 centers across Asia and manufacturing in IATF 16949-certified facilities.
The DMN2055UQ belongs to Diodes' Automotive-Grade Logic-Level MOSFET product line, engineered specifically for low-voltage, high-reliability power switching in AEC-Q101-compliant automotive subsystems.
FAQ
Is DMN2055UQ-13 pin-compatible with standard SOT23-3 discrete MOSFETs?
Yes - DMN2055UQ-13 uses the JEDEC-standard SOT23-3 footprint with Drain (Pin 3), Gate (Pin 2), Source (Pin 1) configuration. Layout compatibility is confirmed per Diodes' package outline DS43668 Rev. 2, and it matches common SOT23-3 routing templates used for logic-level N-channel MOSFETs including AO3400A and Si2300DS.
What is the maximum allowable gate-source voltage for continuous operation?
The absolute maximum VGS rating is ±8 V per the datasheet's "Maximum Ratings" table. For reliable long-term operation, gate drive should be limited to 6 V or less - exceeding 7 V risks accelerated gate oxide degradation, especially at elevated junction temperatures above 125°C.
Does DMN2055UQ support reverse-current blocking in bidirectional power paths?
No - as a standard N-channel MOSFET, DMN2055UQ conducts in reverse through its intrinsic body diode when VDS < 0.7 V. For true bidirectional blocking, external series connection of two devices or use of a dedicated back-to-back MOSFET controller is required.
How does the 113 °C/W RθJA value translate to real-world thermal performance?
With 1.2 W power dissipation and 25°C ambient, junction temperature rises to ≈158°C - exceeding the 150°C limit. Therefore, this RθJA applies only with a 1-inch² copper pour; actual board layout must replicate that thermal pad area to achieve rated performance, otherwise derating to ≤0.8 W is required.
DMN2055UQ-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Bulk
- Product Status:
- Active
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 20 V
- Current - Continuous Drain (Id) @ 25°C:
- 4.8A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 2.5V, 4.5V
- Rds On (Max) @ Id, Vgs:
- 38mOhm @ 3.6A, 4.5V
- Vgs(th) (Max) @ Id:
- 1V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 4.3 nC @ 4.5 V
- Vgs (Max):
- ±8V
- Input Capacitance (Ciss) (Max) @ Vds:
- 400 pF @ 10 V
- FET Feature:
- -
- Power Dissipation (Max):
- 800mW (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DMN2055UQ-13 FAQ
1.How can I place an order for DMN2055UQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMN2055UQ-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 DMN2055UQ-13 reliable?
The price and inventory of DMN2055UQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMN2055UQ-13 is usually 5 days.
3.What payment methods are accepted for DMN2055UQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMN2055UQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMN2055UQ-13?
DMN2055UQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMN2055UQ-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 DMN2055UQ-13?
For technical support, including DMN2055UQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMN2055UQ-13 requirements.
6.How does Aetrix verify that DMN2055UQ-13 is sourced from the original manufacturer or authorized distributors?
All DMN2055UQ-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 DMN2055UQ-13 meets industry standards.
7.What is the process for return or replacement of DMN2055UQ-13?
All DMN2055UQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMN2055UQ-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 DMN2055UQ-13 part is unused and in its original packaging.
Return procedure for DMN2055UQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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