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Diodes Incorporated DMN2991UDJ-7
- Part No.:
- DMN2991UDJ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- FET, MOSFET Arrays
- Package:
- SOT-963
- Datasheet:
-
DMN2991UDJ-7.pdf
- Description:
- MOSFET 2N-CH 20V 0.52A SOT963
- Quantity:
- Payment:
- Shipping:
Inventory:28,050
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Product details
Overview
DMN2991UDJ-7 from Diodes Incorporated is a dual N-channel enhancement-mode MOSFET in SOT963 package, rated for 20V VDSS, 0.99Ω RDS(ON) at VGS = 4.5V, and 520mA ID (TA = +25°C), optimized for low-voltage power switching in space-constrained DC-DC converters and load switches.
For engineers reviewing the DMN2991UDJ-7 datasheet, DMN2991UDJ-7 pinout, DMN2991UDJ-7 application, or DMN2991UDJ-7 equivalent, key selection criteria include gate threshold voltage ≤1.0V, ultra-low 1mm × 1mm footprint, dual-channel integration, and guaranteed RDS(ON) performance down to VGS = 1.5V for battery-powered logic-level drive.
Technical Context
This dual MOSFET integrates two matched N-channel devices sharing a common source configuration in a single ultra-small SOT963 package. Its 1.0V max VGS(TH) enables direct interfacing with 1.8V/2.5V logic outputs without level-shifting circuitry.
The device delivers 0.48Ω typical RDS(ON) at VGS = 4.5V and maintains usable conduction (2.4Ω max) even at VGS = 1.5V, while exhibiting low Ciss (21.5pF) and fast switching (tR = 4.9ns, tF = 27.6ns) for high-frequency power management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 20V - supports input rails up to 18V in USB PD, Li-ion battery, and low-voltage industrial systems |
| RDS(ON) @ VGS = 4.5V | 0.99Ω max - enables ≥520mA continuous current with <0.27W conduction loss at full load |
| VGS(TH) | 1.0V max - ensures reliable turn-on with 1.8V GPIOs and low-power microcontrollers |
| Ciss | 21.5pF - minimizes gate drive power and improves switching efficiency in >1MHz DC-DC topologies |
| PD | 0.4W - compatible with FR-4 PCB layouts using minimum recommended copper pads per datasheet |
| TJ Range | −55°C to +150°C - qualified for extended-temperature industrial and automotive cabin applications |
Pinout & Package
Package: SOT963 - ultra-compact 1.0mm × 1.0mm × 0.45mm molded plastic package with matte tin annealed terminals, moisture sensitivity level 1, and RoHS/REACH/Green compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Source of Channel 1 | Common source node for both MOSFETs; tied internally to Pin 4 in standard configuration |
| Pin 2 | Gate of Channel 1 | Independent control input for first N-channel switch; ESD-protected |
| Pin 3 | Drain of Channel 1 | High-side or low-side switching node; rated for 20V and 1.4A pulsed current |
| Pin 4 | Source of Channel 2 | Shared source connection; electrically tied to Pin 1 in dual-source configuration |
| Pin 5 | Gate of Channel 2 | Independent control input for second N-channel switch; identical VGS(TH) and drive requirements |
| Pin 6 | Drain of Channel 2 | Second independent switching node; enables dual-load or complementary half-bridge operation |
Key Features
| Feature | Design Value |
|---|---|
| Dual N-channel topology | Two matched MOSFETs in one SOT963 footprint - reduces board area by >50% vs. discrete dual-SOT23 solutions |
| Low VGS(TH) | ≤1.0V maximum - eliminates need for gate drivers when interfacing with 1.8V/2.5V I/O domains |
| Ultra-small package | 1.0mm × 1.0mm × 0.45mm height - fits into wearables, hearing aids, and compact IoT sensor nodes |
| ESD-protected gate | HBM ≥2kV - withstands handling and assembly without external protection diodes |
| Low Ciss/Coss | 21.5pF / 4.9pF - reduces switching losses and EMI in high-frequency buck regulators |
Applications
| USB Type-C Load Switch | Battery Protection Circuit |
|---|---|
|
Use Scenario: Dual-path power routing in portable USB-C accessories with separate VBUS and CC line switching. IC Role / Device Role / Timing Role: Dual N-MOSFET load switch controlling VBUS path and CC detection line isolation. Use Value: Enables 1.5V–5V logic-compatible control with <1.0V gate threshold and 0.99Ω on-resistance to minimize voltage drop across 500mA loads. |
Use Scenario: Overcurrent and short-circuit protection in single-cell Li-ion battery packs for medical sensors. IC Role / Device Role / Timing Role: Dual-channel reverse-polarity and overcurrent protection switch in battery input stage. Use Value: Leverages matched RDS(ON) tracking and −55°C to +150°C operation to ensure consistent trip thresholds across temperature. |
| Wearable Power Sequencing | IoT Sensor Node Power Gating |
|
Use Scenario: Independent power-up sequencing of RF transceiver and MCU subsystems in hearable devices. IC Role / Device Role / Timing Role: Dual independent low-side switches enabling staggered enable timing via separate gate signals. Use Value: 0.15mm lead pitch and 1mm² footprint allow placement adjacent to BGA-packaged SoCs without routing congestion. |
Use Scenario: Duty-cycled power gating of environmental sensors (e.g., humidity, temperature) in battery-operated edge nodes. IC Role / Device Role / Timing Role: Low-quiescent-current load switch enabling <1µA off-state leakage per channel. Use Value: 1µA max IDSS and 10µA max IGSS ensure multi-year battery life in 10-second wake/sleep cycles. |
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 |
|---|---|---|---|
| DMN2053UFD-7 | Higher VDSS (30V), higher RDS(ON) (1.4Ω @ 4.5V), larger X2DFN2020-6 package (2.0mm × 2.0mm) | Targeted at 12V industrial power rails where higher breakdown margin is required | Select when system input exceeds 20V or thermal budget allows larger footprint |
| AO6401 | Single-channel SOT23-6, 30V VDSS, 32mΩ RDS(ON) @ 10V, no 1.5V drive capability | Requires two devices and more PCB area; lacks low-threshold operation for 1.8V logic | Choose only if higher current (>2A) per channel and 10V gate drive infrastructure exist |
Compared with DMN2053UFD-7 and AO6401, DMN2991UDJ-7 uniquely combines sub-1V gate threshold, dual-channel integration, and 1mm² footprint-making it irreplaceable for space- and voltage-constrained 1.8V–3.3V battery systems requiring two independent low-RDS(ON) switches.
Availability
DMN2991UDJ-7 is available at Aetrix Electronics and suitable for USB-C accessory design, wearable power management, and IoT sensor node development requiring stable component supply and long-term lifecycle support.
Supply support for DMN2991UDJ-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 precision timing solutions for industrial, computing, and consumer markets.
DMN2991UDJ-7 belongs to Diodes' Ultra-Small Signal MOSFET product line, engineered specifically for miniaturized battery-powered systems demanding logic-level drive, dual-channel integration, and robust thermal performance in sub-1mm² packages.
FAQ
What is the maximum continuous drain current per channel at 70°C ambient?
At TA = +70°C and VGS = 4.5V, the DMN2991UDJ-7 supports 415mA continuous drain current per channel, derated from 520mA at +25°C due to thermal resistance (RθJA = 312°C/W) and 0.4W power dissipation limit on FR-4 PCB with minimum pad layout.
Does this device support common-source or common-drain configurations?
The DMN2991UDJ-7 features an internal common-source configuration (Pins 1 and 4 tied together), enabling standard low-side switching. It does not support isolated-source operation; for high-side or floating configurations, external source routing is required using discrete traces.
Is the SOT963 package compatible with standard reflow profiles?
Yes-the SOT963 package is qualified for IPC/JEDEC J-STD-020 Level 1 moisture sensitivity and supports standard lead-free reflow profiles (peak 260°C, 60s above 217°C), with matte tin annealed terminals ensuring solderability per MIL-STD-202 Method 208.
How is gate ESD protection implemented?
The DMN2991UDJ-7 incorporates on-chip Zener-based ESD protection on each gate terminal, rated to ≥2kV HBM per JEDEC JS-001. No external gate resistors or TVS diodes are required for standard handling and board-level ESD immunity in Class 1B environments.
DMN2991UDJ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-963
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- MOSFET (Metal Oxide)
- Configuration:
- 2 N-Channel (Dual)
- FET Feature:
- -
- Drain to Source Voltage (Vdss):
- 20V
- Current - Continuous Drain (Id) @ 25°C:
- 520mA (Ta)
- Rds On (Max) @ Id, Vgs:
- 990mOhm @ 100mA, 4.5V
- Vgs(th) (Max) @ Id:
- 1V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 0.35nC @ 4.5V
- Input Capacitance (Ciss) (Max) @ Vds:
- 21.5pF @ 15V
- Power - Max:
- 400mW (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-963
DMN2991UDJ-7 FAQ
1.How can I place an order for DMN2991UDJ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMN2991UDJ-7 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 DMN2991UDJ-7 reliable?
The price and inventory of DMN2991UDJ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMN2991UDJ-7 is usually 5 days.
3.What payment methods are accepted for DMN2991UDJ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMN2991UDJ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMN2991UDJ-7?
DMN2991UDJ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMN2991UDJ-7 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 DMN2991UDJ-7?
For technical support, including DMN2991UDJ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMN2991UDJ-7 requirements.
6.How does Aetrix verify that DMN2991UDJ-7 is sourced from the original manufacturer or authorized distributors?
All DMN2991UDJ-7 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 DMN2991UDJ-7 meets industry standards.
7.What is the process for return or replacement of DMN2991UDJ-7?
All DMN2991UDJ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DMN2991UDJ-7, 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 DMN2991UDJ-7 part is unused and in its original packaging.
Return procedure for DMN2991UDJ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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