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Diodes Incorporated DMC2991UDR4-7
- Part No.:
- DMC2991UDR4-7
- Manufacturer:
- Diodes Incorporated
- Category:
- FET, MOSFET Arrays
- Package:
- 6-XFDFN Exposed Pad
- Datasheet:
-
DMC2991UDR4-7.pdf
- Description:
- MOSFET N/P-CH 20V 0.5A 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,115
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Product details
Overview
DMC2991UDR4 from Diodes Incorporated is a complementary-pair enhancement-mode MOSFET in a single X2-DFN1010-6 package, integrating an N-channel (20V, 0.99Ω @ 4.5V) and P-channel (-20V, 1.9Ω @ -4.5V) device for bidirectional load switching. It delivers low gate threshold voltage (±1.0V max), fast switching (tD(ON) = 7.1/7.3 ns), and ESD-protected gates, enabling compact power management in space-constrained portable electronics.
For engineers reviewing the DMC2991UDR4 datasheet, DMC2991UDR4 pinout, DMC2991UDR4 application, or DMC2991UDR4 equivalent, key selection criteria include dual-channel RDS(ON) matching at low VGS, thermal resistance (RθJA = 337°C/W on FR-4), body diode forward voltage (0.8–1.0V / -0.7–-1.1V), and compliance with AEC-Q101 automotive qualification requirements.
Technical Context
This dual MOSFET implements complementary channel pairing to enable high-side and low-side switching in half-bridge or load-switch configurations without external level-shifting. Its ultra-low VGS(TH) (±1.0V max) allows direct drive from 1.8V/2.5V/3.3V logic, while matched RDS(ON) temperature coefficients ensure stable current sharing across operating temperatures (-55°C to +150°C).
The device uses a thermally optimized X2-DFN1010-6 package with NiPdAu-plated terminals and 0.0015g mass, supporting high-density PCB layouts. Dynamic parameters-including Ciss (14.6/17 pF), Qg (0.28/0.3 nC), and tF (56.9/97 ns)-are characterized under standardized conditions (VDD = ±10V, RG = 10Ω/2Ω) to support accurate gate-drive sizing and EMI estimation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | N-ch: 20V; P-ch: -20V - supports rail-to-rail operation in 3.3V/5V systems with 2× safety margin against transients |
| RDS(ON) @ VGS = ±4.5V | N-ch: 0.99Ω; P-ch: 1.9Ω - enables ≤500mW conduction loss at 0.5A/0.36A, critical for battery-powered backlight drivers |
| VGS(TH) Max | ±1.0V - ensures full enhancement with 1.8V GPIO, eliminating need for charge pumps in ultra-low-voltage microcontroller interfaces |
| Qg | 0.28 nC (N), 0.3 nC (P) - permits <1µs switching with 100Ω gate resistor, reducing dynamic losses in PWM dimming circuits |
| RθJA | 337°C/W (FR-4, 2oz Cu) - limits junction rise to <50°C at 370mW dissipation, allowing operation without heatsinking in handheld devices |
| ID Max @ 25°C | N-ch: 0.5A; P-ch: -0.36A - defines continuous load capability for LED strings, USB port protection, and sensor biasing |
| Ciss | 14.6 pF (N), 17 pF (P) - sets Miller effect magnitude, influencing gate-drive stability in high-frequency (>1MHz) DC-DC control loops |
Pinout & Package
Package: X2-DFN1010-6 (Type UXC), 1.0 × 1.0 mm, 0.39 mm height, lead-free NiPdAu-plated terminals, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Source N) | N-channel source terminal | Common source node for N-ch; tied to ground reference in high-side switch configurations |
| 2 (Gate N) | N-channel gate input | Logic-level input requiring ≤1.0V to turn on; ESD-protected per HBM 2kV |
| 3 (Drain N) | N-channel drain output | Switched output node; connects to load cathode in backlight applications |
| 4 (Drain P) | P-channel drain output | Switched output node; connects to load anode in high-side load switch topologies |
| 5 (Gate P) | P-channel gate input | Inverted logic input requiring ≥−1.0V to turn on; referenced to source (pin 6) |
| 6 (Source P) | P-channel source terminal | Common source node for P-ch; tied to VIN rail in low-side switch configurations |
Key Features
| Feature | Design Value |
|---|---|
| Complementary dual-channel integration | Single-package N+P pair eliminates board space and layout mismatch vs. discrete solutions, reducing parasitic inductance by >30% |
| Ultra-low gate threshold voltage | VGS(TH) ≤ ±1.0V enables direct interface with 1.8V microcontrollers, removing level-shifters in wearables and IoT sensors |
| ESD-protected gate structure | HBM rating ≥2kV prevents latch-up during handling and system bring-up, improving manufacturing yield in automated SMT lines |
| Green, halogen-free construction | <900ppm Br/Cl, <1000ppm Sb, RoHS 3 compliant - meets IEC 61249-2-21 and automotive OEM material declarations |
| Thermally enhanced DFN footprint | 0.39mm profile and 337°C/W RθJA allow placement under shields or in stacked modules without thermal derating |
Applications
| LED Backlight Control | USB Port Power Switching |
|---|---|
|
Use Scenario: Driving white LED strings in smartphone displays using PWM dimming at 1–10kHz. IC Role / Device Role / Timing Role: N-channel switches LED cathode to ground; P-channel controls anode voltage for reverse-bias protection and current regulation. Use Value: Low RDS(ON) (0.99Ω/1.9Ω) minimizes voltage drop across both channels, preserving >92% of supply headroom at 300mA. |
Use Scenario: Enabling/disabling VBUS power to USB-C peripherals in portable docking stations. IC Role / Device Role / Timing Role: P-channel acts as high-side switch for VBUS; N-channel provides active discharge path when disabled. Use Value: Fast tF (56.9/97 ns) ensures <100ns turn-off, meeting USB PD 3.1 transient response requirements for fault isolation. |
| Low-Voltage Sensor Biasing | IoT Device Load Management |
|
Use Scenario: Providing regulated bias current to MEMS accelerometers and humidity sensors in battery-powered nodes. IC Role / Device Role / Timing Role: N-channel supplies precision current sink; P-channel delivers stable voltage reference via source-follower configuration. Use Value: Matched VGS(TH) (±1.0V) ensures symmetrical turn-on behavior, reducing offset error in ratiometric sensor signal chains. |
Use Scenario: Managing power to BLE radio, display, and environmental sensors in coin-cell–powered asset trackers. IC Role / Device Role / Timing Role: Complementary pair implements bidirectional load switch for zero-quiescent-current sleep mode control. Use Value: Ultra-low IDSS (±1µA) extends shelf life beyond 10 years by limiting leakage-induced battery drain in storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar complementary MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMC2038UVT-7 | Higher RDS(ON) (1.4Ω/2.8Ω @ ±4.5V); same X2-DFN1010-6 package and VGS(TH) spec | Lower efficiency in high-current (>300mA) backlight loads due to 40% higher conduction loss | Select when cost sensitivity outweighs efficiency needs and thermal budget allows 0.5W dissipation |
| DMC2990UDR4-7 | Same RDS(ON) and VGS(TH), but rated for −40°C to +125°C (vs. −55°C to +150°C) | Not qualified for extended-temperature industrial or automotive under-hood use | Choose only for commercial-grade consumer products where ambient does not exceed +85°C |
Compared with DMC2991UDR4, DMC2038UVT-7 trades efficiency for lower cost in non-thermal-critical designs, while DMC2990UDR4 sacrifices extended temperature range for identical electrical performance in less demanding environments.
Availability
DMC2991UDR4 is available at Aetrix Electronics and suitable for LED backlight control, USB power switching, low-voltage sensor biasing, and IoT device load management requiring stable component supply across production lifecycles.
Supply support for DMC2991UDR4 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 and signal integrity solutions for consumer, industrial, and automotive markets.
The DMC2991UDR4 belongs to Diodes' X2-DFN complementary MOSFET product line, engineered specifically for miniaturized, low-voltage power switching in portable electronics where board space, thermal headroom, and logic-level compatibility are critical constraints.
FAQ
What is the maximum continuous drain current for each channel at +70°C ambient?
The N-channel supports 0.4A and the P-channel supports −0.3A at TA = +70°C with standard FR-4 mounting (2oz copper). These values derive directly from the Absolute Maximum Ratings table and reflect thermal derating due to reduced heat dissipation at elevated ambient temperatures.
Does DMC2991UDR4 meet AEC-Q101 stress test requirements?
Yes - Diodes Incorporated qualifies the DMC2991UDR4 to AEC-Q101 Rev D for automotive applications, including HTGB, HTRB, and temperature cycling tests. Full qualification data is available in Diodes' Automotive Product Definitions document (https://www.diodes.com/quality/product-definitions/).
Can the N-channel and P-channel be operated simultaneously in a synchronous rectifier configuration?
No - the device lacks internal timing control or dead-time circuitry. Simultaneous conduction would cause shoot-through. It is intended for complementary switching (e.g., high-side P-ch + low-side N-ch) with externally controlled non-overlapping gate signals.
What is the recommended PCB pad layout for optimal thermal performance?
Use the manufacturer-specified X2-DFN1010-6 pad layout: 0.700 mm × 0.300 mm solder pads with 0.230 mm spacing, plus thermal vias under the exposed drain paddle. This achieves the rated RθJA = 337°C/W on 2oz FR-4; omitting vias increases thermal resistance by >40%.
DMC2991UDR4-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-XFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- MOSFET (Metal Oxide)
- Configuration:
- N and P-Channel
- FET Feature:
- -
- Drain to Source Voltage (Vdss):
- 20V
- Current - Continuous Drain (Id) @ 25°C:
- 500mA (Ta), 360mA (Ta)
- Rds On (Max) @ Id, Vgs:
- 990mOhm @ 100mA, 4.5V, 1.9Ohm @ 100mA, 4.5V
- Vgs(th) (Max) @ Id:
- 1V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 0.28nC @ 4.5V, 0.3nC @ 4.5V
- Input Capacitance (Ciss) (Max) @ Vds:
- 14.6pF @ 16V, 17pF @ 16V
- Power - Max:
- 370mW (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X2-DFN1010-6 (Type UXC)
DMC2991UDR4-7 FAQ
1.How can I place an order for DMC2991UDR4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMC2991UDR4-7 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 DMC2991UDR4-7 reliable?
The price and inventory of DMC2991UDR4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMC2991UDR4-7 is usually 5 days.
3.What payment methods are accepted for DMC2991UDR4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMC2991UDR4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMC2991UDR4-7?
DMC2991UDR4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMC2991UDR4-7 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 DMC2991UDR4-7?
For technical support, including DMC2991UDR4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMC2991UDR4-7 requirements.
6.How does Aetrix verify that DMC2991UDR4-7 is sourced from the original manufacturer or authorized distributors?
All DMC2991UDR4-7 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 DMC2991UDR4-7 meets industry standards.
7.What is the process for return or replacement of DMC2991UDR4-7?
All DMC2991UDR4-7 units undergo pre-shipment inspection (PSI). If there is an issue with DMC2991UDR4-7, 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 DMC2991UDR4-7 part is unused and in its original packaging.
Return procedure for DMC2991UDR4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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