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Diodes Incorporated DMN2991UFZQ-7B
- Part No.:
- DMN2991UFZQ-7B
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- 3-XFDFN
- Datasheet:
-
DMN2991UFZQ-7B.pdf
- Description:
- MOSFET BVDSS: 8V~24V X2-DFN0606-
- Quantity:
- Payment:
- Shipping:
Inventory:6,273
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Product details
Overview
DMN2991UFZQ-7B from Diodes Incorporated is a 20V N-channel enhancement-mode MOSFET in a 0.62mm × 0.62mm X2-DFN0606-3 package, featuring 0.99Ω RDS(ON) at VGS = 4.5V, 1.0V max gate threshold voltage, and AEC-Q101 qualification for automotive use. It serves as a low-voltage load switch in space-constrained power-management circuits.
For engineers reviewing the DMN2991UFZQ-7B datasheet, DMN2991UFZQ-7B pinout, DMN2991UFZQ-7B application, or DMN2991UFZQ-7B equivalent, this page delivers verified electrical parameters, thermal performance data, package geometry, and automotive-grade reliability context to support high-density PCB layout and battery-powered system design.
Technical Context
This MOSFET employs a trench-gate silicon process optimized for ultra-low VGS(TH) (0.4–1.0V) and sub-1Ω on-resistance at logic-level drive voltages down to 1.5V. Its 0.42mm max height enables stacking under connectors or near sensors in compact modules.
Thermal resistance is specified at 279°C/W (steady-state, FR-4) and 148°C/W (with thermal vias), confirming its suitability for thermally isolated routing in portable electronics. ESD protection (HBM >2kV) and NiPdAu-plated terminals ensure robust assembly and field reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 20V - Supports 12V rail switching and USB PD auxiliary power paths without derating. |
| RDS(ON) | 0.99Ω @ VGS = 4.5V - Enables <100mW conduction loss at 0.5A, critical for battery runtime. |
| VGS(TH) | Max 1.0V - Ensures reliable turn-on with 1.8V/2.5V I/O domains, eliminating level-shifter need. |
| ID (max) | 0.55A @ TA = 25°C - Sufficient for LED drivers, sensor biasing, and peripheral enable switches. |
| Qg | 0.28nC - Reduces gate-drive power and switching losses in 1–10MHz PWM control loops. |
| RθJA | 279°C/W (FR-4, min pad) - Defines minimum copper area required for safe continuous operation. |
| AEC-Q101 | Qualified - Validated for automotive infotainment, body control, and ADAS subsystems. |
Pinout & Package
Package: X2-DFN0606-3, 0.62mm × 0.62mm footprint, 0.42mm max height, 3-terminal leadless plastic package with exposed drain pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Source) | Source terminal | Connected to ground or low-side return path; ties directly to PCB ground plane for thermal and EMI control. |
| 2 (Gate) | Control input | High-impedance node requiring minimal drive current; sensitive to ESD but protected by integrated diodes. |
| 3 (Drain) | Power output | Exposed metal pad - must be soldered to large copper pour for thermal dissipation and current handling. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low gate threshold | VGS(TH) ≤ 1.0V ensures full enhancement with 1.8V microcontroller GPIOs. |
| Miniature DFN footprint | 0.62mm × 0.62mm area saves >70% board space vs. SOT-23, enabling dense wearable layouts. |
| ESD-protected gate | HBM >2kV rating eliminates external TVS requirement in most consumer and automotive environments. |
| AEC-Q101 qualification | Validated for -55°C to +150°C operation with PPAP documentation support for Tier-1 automotive programs. |
| Green, halogen-free construction | <900ppm Br/Cl, <1000ppm Sb - meets IPC-1752A Class 3 material declarations for global OEM compliance. |
Applications
| USB Type-C Port Power Switching | Automotive Cabin Sensor Bias Control |
|---|---|
|
Use Scenario: Enabling/disabling VBUS power to downstream USB peripherals in portable docking stations. IC Role / Device Role / Timing Role: Low-side load switch controlling 5V/3A power path with fast turn-on (<25ns rise time) and minimal voltage drop. Use Value: 0.99Ω RDS(ON) limits voltage sag to <500mV at 0.5A, preserving USB 2.0 signal integrity and enumeration timing. |
Use Scenario: Supplying regulated bias current to MEMS accelerometers and ambient light sensors in vehicle dashboards. IC Role / Device Role / Timing Role: Precision current-source switch activated by CAN-FD microcontroller GPIOs operating at 2.5V logic levels. Use Value: 1.0V max VGS(TH) guarantees activation across full automotive temperature range (-40°C to +125°C). |
| Wearable Health Monitor Battery Isolation | Smart Home Zigbee Module Enable Circuit |
|
Use Scenario: Isolating coin-cell battery from BLE SoC during deep-sleep mode to reduce quiescent current below 1µA. IC Role / Device Role / Timing Role: High-impedance off-state switch with IDSS <1µA, minimizing leakage-induced battery drain over 6-month shelf life. Use Value: 0.42mm profile allows placement beneath OLED display flex cable without mechanical interference. |
Use Scenario: Power gating Zigbee radio ICs during network idle periods in battery-operated smart locks and thermostats. IC Role / Device Role / Timing Role: Logic-level controlled power switch interfacing with 3.3V ARM Cortex-M0+ enable signals. Use Value: 0.28nC Qg enables full turn-on within 100ns using standard GPIO slew rates, reducing wake-up latency. |
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 |
|---|---|---|---|
| DMN2053UFB-7 | RDS(ON) = 1.2Ω @ VGS = 2.5V; same X2-DFN0606-3 package; no AEC-Q101 qualification | Targeted at industrial/commercial designs where automotive qualification is not required | Select when cost sensitivity outweighs automotive compliance needs and higher RDS(ON) is acceptable. |
| AO3414 | RDS(ON) = 0.75Ω @ VGS = 4.5V; SOT-23 package; 1.4mm height; AEC-Q101 unqualified | Larger footprint and height limit use in ultra-thin wearables or stacked modules | Choose only if legacy SOT-23 reflow infrastructure exists and board thickness >0.8mm is permissible. |
Compared with DMN2053UFB-7 and AO3414, the DMN2991UFZQ-7B uniquely combines AEC-Q101 qualification, 0.42mm height, and sub-1Ω RDS(ON) at 1.5V drive-making it the sole option for space-constrained automotive subsystems requiring guaranteed reliability.
Availability
DMN2991UFZQ-7B is available at Aetrix Electronics and suitable for USB-C power delivery modules, automotive cabin sensor subsystems, wearable health monitors, and smart home wireless nodes requiring stable component supply across extended product lifecycles.
Supply support for DMN2991UFZQ-7B 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-reliability components for automotive, industrial, and consumer markets since 1960.
The DMN2991UFZQ-7B belongs to Diodes' X2-DFN logic-level MOSFET product line, engineered specifically for ultra-compact, low-voltage power switching in battery-powered and automotive electronics.
FAQ
What is the maximum continuous drain current at 75°C ambient?
The DMN2991UFZQ-7B supports 0.44A continuous drain current at TA = +75°C with standard FR-4 mounting per datasheet Note 5. This derating reflects thermal limitations of the 0.62mm × 0.62mm package without thermal vias; adding vias increases capability to 0.53A at the same temperature.
Does the device require external gate resistors for ESD protection?
No. The DMN2991UFZQ-7B integrates ESD protection diodes on the gate terminal rated to >2kV HBM per JESD22-A114. External gate resistors are unnecessary for ESD mitigation but may be used to dampen ringing in high-frequency switching applications.
Can this MOSFET be used in reverse conduction (source-to-drain) mode?
Yes-the body diode supports 0.7A continuous forward current (IS) with VSD = 0.6V typical at 150mA. However, reverse conduction is limited by thermal resistance and should not exceed 0.35A sustained without thermal vias due to RDS(ON) asymmetry and junction temperature constraints.
Is the X2-DFN0606-3 package compatible with standard reflow profiles?
Yes. The X2-DFN0606-3 package is qualified for JEDEC J-STD-020 Level 1 moisture sensitivity and supports standard lead-free reflow profiles (peak 260°C, 60s above 217°C). Its NiPdAu finish ensures reliable solder wetting on OSP- and ENIG-finished PCBs.
DMN2991UFZQ-7B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 3-XFDFN
- 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:
- 550mA (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 1.5V, 4.5V
- Rds On (Max) @ Id, Vgs:
- 990mOhm @ 100mA, 4.5V
- Vgs(th) (Max) @ Id:
- 1V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 0.28 nC @ 4.5 V
- Vgs (Max):
- ±8V
- Input Capacitance (Ciss) (Max) @ Vds:
- 14.6 pF @ 16 V
- FET Feature:
- -
- Power Dissipation (Max):
- 450mW (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X2-DFN0606-3
DMN2991UFZQ-7B FAQ
1.How can I place an order for DMN2991UFZQ-7B through Aetrix?
Please submit a Request for Quotation (RFQ) for DMN2991UFZQ-7B 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 DMN2991UFZQ-7B reliable?
The price and inventory of DMN2991UFZQ-7B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMN2991UFZQ-7B is usually 5 days.
3.What payment methods are accepted for DMN2991UFZQ-7B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMN2991UFZQ-7B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMN2991UFZQ-7B?
DMN2991UFZQ-7B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMN2991UFZQ-7B 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 DMN2991UFZQ-7B?
For technical support, including DMN2991UFZQ-7B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMN2991UFZQ-7B requirements.
6.How does Aetrix verify that DMN2991UFZQ-7B is sourced from the original manufacturer or authorized distributors?
All DMN2991UFZQ-7B 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 DMN2991UFZQ-7B meets industry standards.
7.What is the process for return or replacement of DMN2991UFZQ-7B?
All DMN2991UFZQ-7B units undergo pre-shipment inspection (PSI). If there is an issue with DMN2991UFZQ-7B, 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 DMN2991UFZQ-7B part is unused and in its original packaging.
Return procedure for DMN2991UFZQ-7B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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