My Inquiry
My Account
Diodes Incorporated DMC2991UDA-7B
- Part No.:
- DMC2991UDA-7B
- Manufacturer:
- Diodes Incorporated
- Category:
- FET, MOSFET Arrays
- Package:
- 6-SMD, No Lead
- Datasheet:
-
DMC2991UDA-7B.pdf
- Description:
- MOSFET N/P-CH 20V 0.48A 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:8,689
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DMC2991UDA-7B from Diodes Incorporated is a complementary-pair enhancement-mode MOSFET in a single X2-DFN0806-6 package, integrating an N-channel (20V, 0.99Ω @ 4.5V) and P-channel (-20V, 1.9Ω @ -4.5V) device for bidirectional switching. It delivers low gate threshold voltage (±1.0V max), fast switching (tD(ON) = 5.6ns / 7.3ns), and operates across -55°C to +150°C. Used in compact power-management circuits requiring rail-to-rail control, such as USB port protection and battery charge/discharge paths.
For engineers reviewing the DMC2991UDA-7B datasheet, DMC2991UDA-7B pinout, DMC2991UDA-7B application, or DMC2991UDA-7B equivalent, this page provides verified electrical parameters, thermal performance data, package layout details, real-world use cases, and validated alternative parts - all derived from Diodes' official DS42099 Rev. 3-2 datasheet and packaging documentation.
Technical Context
This dual MOSFET implements complementary logic-level switching with matched thermal characteristics and integrated gate protection diodes on both channels. Its ultra-small 0.8mm × 0.6mm footprint supports high-density PCB layouts while maintaining separate source terminals for independent biasing and body-diode utilization.
The N-channel device features RDS(ON) = 0.37Ω (typ) at VGS = 4.5V and ID = 100mA; the P-channel achieves RDS(ON) = 1.0Ω (typ) under identical conditions. Both exhibit low input capacitance (Ciss = 21.5pF / 17pF) and total gate charge (Qg = 0.35nC / 0.3nC), enabling efficient drive from low-power GPIOs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | N-ch: 20V; P-ch: -20V - supports dual-rail operation up to ±20V supply without breakdown |
| RDS(ON) Max | N-ch: 0.99Ω @ 4.5V; P-ch: 1.9Ω @ -4.5V - enables <500mW conduction loss at 480mA/350mA loads |
| VGS(TH) Max | N-ch: 1.0V; P-ch: -1.0V - ensures full enhancement with 1.2V–1.8V logic outputs (e.g., MCU GPIOs) |
| ID Continuous | N-ch: 480mA; P-ch: -350mA @ 25°C - suitable for low-current load switching and signal routing |
| PD | 0.35W - limits thermal rise to ≤125°C junction temp on FR-4 with minimum pad layout |
| Ciss | N-ch: 21.5pF; P-ch: 17pF - reduces gate drive energy and EMI during 10MHz+ switching |
| Package | X2-DFN0806-6 - 0.8mm × 0.6mm footprint with 0.3mm pitch, optimized for space-constrained wearables and IoT nodes |
Pinout & Package
Package: X2-DFN0806-6 - ultra-compact 0.8mm × 0.6mm molded plastic package with matte tin–annealed copper leadframe, moisture sensitivity level 1, and UL 94V-0 rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (G1) | N-channel gate | Control input for N-MOSFET; accepts logic-level signals down to 1.0V threshold |
| Pin 2 (S1) | N-channel source | Reference node for N-ch; electrically isolated from P-ch source for asymmetric biasing |
| Pin 3 (D1) | N-channel drain | Current output path for N-ch; connects to load or rail in high-side or low-side configuration |
| Pin 4 (D2) | P-channel drain | Current output path for P-ch; shares no internal connection with D1 - supports independent routing |
| Pin 5 (S2) | P-channel source | Reference node for P-ch; isolated from S1 to enable floating-source or common-drain topologies |
| Pin 6 (G2) | P-channel gate | Control input for P-MOSFET; driven with inverted logic relative to G1 for complementary operation |
Key Features
| Feature | Design Value |
|---|---|
| Complementary Pair Integration | Single-package N+P MOSFET eliminates board space and layout mismatch vs. discrete solutions |
| Ultra-Low Gate Threshold | VGS(TH) ≤ ±1.0V enables direct drive from 1.2V/1.8V MCUs without level-shifting circuitry |
| ESD-Protected Gates | Integrated gate protection diodes prevent latch-up and damage from ±2kV HBM transients |
| Low Input Capacitance | Ciss ≤ 21.5pF minimizes gate drive current and propagation delay in high-speed switching |
| Green, Lead-Free Construction | Halogen- and antimony-free molding compound (<900ppm Br/Cl, <1000ppm Sb) meets RoHS 3 and automotive green standards |
Applications
| USB Port Protection | Battery Charge/Discharge Control |
|---|---|
|
Use Scenario: Bidirectional overvoltage and reverse-current protection for micro-USB and USB-C ports in portable devices. IC Role / Device Role / Timing Role: N-channel blocks reverse current from VBUS to battery; P-channel isolates battery during charging faults. Use Value: Prevents backfeed into host supplies and protects Li-ion cells using only one IC instead of two discrete MOSFETs and control logic. |
Use Scenario: Managing charge path from adapter to battery and discharge path to system load in single-cell wearable power systems. IC Role / Device Role / Timing Role: Complementary pair acts as ideal diode controller - N-ch conducts charge, P-ch conducts discharge - with synchronized gate timing. Use Value: Reduces forward voltage drop by >60% vs. Schottky diodes, extending runtime and lowering thermal load in 2×2mm PCB areas. |
| Low-Power Sensor Interface | IoT Node Power Sequencing |
|
Use Scenario: Isolating analog sensor rails (e.g., temperature, humidity) from main MCU domain to reduce noise coupling and leakage. IC Role / Device Role / Timing Role: N-channel switches VDD to sensor; P-channel controls ground return - both controlled via shared enable signal. Use Value: Achieves <1μA off-state leakage (IDSS ≤ ±1μA), preserving battery life in multi-year sensor deployments. |
Use Scenario: Enabling precise power-up/down sequencing of RF transceiver, MCU, and memory in LPWAN modules. IC Role / Device Role / Timing Role: Dual MOSFET serves as programmable rail switch - N-ch enables VCC_IO, P-ch enables VCC_CORE - with independent timing control. Use Value: Eliminates need for external timing RC networks or dedicated PMICs, reducing BOM count and layout complexity in sub-10mm² modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar complementary MOSFET switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMC2038LSD-7 | Higher RDS(ON): 1.2Ω/2.5Ω @ 4.5V/-4.5V; larger X2-DFN1006-6 package (1.0mm × 0.6mm) | Lower current capability (380mA/-300mA); less suitable for 480mA peak loads | Select when higher thermal margin is needed and board area allows 25% larger footprint. |
| DMC2040UDM-7 | Lower VDSS: ±12V; tighter RDS(ON): 0.75Ω/1.5Ω @ 4.5V/-4.5V; same X2-DFN0806-6 package | Not rated for 20V rail applications; limited to 12V systems like BLE peripherals and smart sensors | Choose for cost-sensitive 12V designs where 20V headroom is unnecessary and lower on-resistance is critical. |
Compared with DMC2991UDA-7B, DMC2038LSD-7 trades compactness for thermal robustness, while DMC2040UDM-7 sacrifices voltage rating for lower conduction loss - making the DMC2991UDA-7B optimal for 20V-compatible, space-constrained, logic-level-switched applications.
Availability
DMC2991UDA-7B is available at Aetrix Electronics and suitable for USB port protection, battery charge/discharge control, low-power sensor interface, and IoT node power sequencing requiring stable component supply and long-term lifecycle support.
Supply support for DMC2991UDA-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-efficiency power management, signal integrity, and protection solutions for consumer, industrial, and automotive markets.
The DMC2991UDA belongs to Diodes' logic-level complementary MOSFET product line, engineered specifically for space-constrained, low-voltage portable electronics requiring rail-to-rail bidirectional switching with minimal gate drive overhead.
FAQ
What is the maximum operating temperature for DMC2991UDA-7B?
The DMC2991UDA-7B has an operating junction temperature range of -55°C to +150°C, with thermal resistance RθJA = 354°C/W on FR-4 PCB using minimum recommended pad layout. At 0.35W dissipation, junction temperature rises ~124°C above ambient - confirming safe operation at 25°C ambient with 150°C limit.
Can DMC2991UDA-7B be used in automotive applications?
DMC2991UDA-7B is not AEC-Q101 qualified per its datasheet; Diodes states that automotive-grade versions require specific change control, PPAP capability, and IATF 16949 manufacturing - which this part does not list. It is intended for commercial/industrial portable electronics, not safety-critical automotive subsystems.
How are the gate protection diodes implemented in this device?
The DMC2991UDA-7B integrates monolithic gate protection diodes between each gate and its respective source terminal (G1–S1 and G2–S2), as shown in the "EE" marking diagram and confirmed in the Pin Configuration section. These diodes clamp transient overvoltage to ±0.7V, protecting against ESD events up to ±2kV HBM without external components.
Is the X2-DFN0806-6 package compatible with standard reflow profiles?
Yes - the X2-DFN0806-6 package is rated for moisture sensitivity level 1 (MSL-1) per J-STD-020, meaning it can be stored indefinitely at ≤30°C/60% RH and processed using standard Pb-free reflow profiles (peak 260°C). The matte tin–annealed leadframe ensures reliable solderability per MIL-STD-202, Method 208.
DMC2991UDA-7B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-SMD, No Lead
- Packaging:
- Bulk
- Product Status:
- Active
- Technology:
- MOSFET (Metal Oxide)
- Configuration:
- N and P-Channel Complementary
- FET Feature:
- -
- Drain to Source Voltage (Vdss):
- 20V
- Current - Continuous Drain (Id) @ 25°C:
- 480mA (Ta), 350mA (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:
- 0.35nC @ 4.5V, 0.3nC @ 4.5V
- Input Capacitance (Ciss) (Max) @ Vds:
- 21.5pF @ 16V, 17pF @ 15V
- Power - Max:
- 350mW (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X2-DFN0806-6
DMC2991UDA-7B FAQ
1.How can I place an order for DMC2991UDA-7B through Aetrix?
Please submit a Request for Quotation (RFQ) for DMC2991UDA-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 DMC2991UDA-7B reliable?
The price and inventory of DMC2991UDA-7B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMC2991UDA-7B is usually 5 days.
3.What payment methods are accepted for DMC2991UDA-7B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMC2991UDA-7B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMC2991UDA-7B?
DMC2991UDA-7B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMC2991UDA-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 DMC2991UDA-7B?
For technical support, including DMC2991UDA-7B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMC2991UDA-7B requirements.
6.How does Aetrix verify that DMC2991UDA-7B is sourced from the original manufacturer or authorized distributors?
All DMC2991UDA-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 DMC2991UDA-7B meets industry standards.
7.What is the process for return or replacement of DMC2991UDA-7B?
All DMC2991UDA-7B units undergo pre-shipment inspection (PSI). If there is an issue with DMC2991UDA-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 DMC2991UDA-7B part is unused and in its original packaging.
Return procedure for DMC2991UDA-7B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DMC2991UDA-7B Tags
-
SSM6N7002KFU,LF
Toshiba Semiconductor and Storage
-
2N7002DW-7-F
Diodes Incorporated
-
SSM6L56FE,LM
Toshiba Semiconductor and Storage
-
SSM6N37FU,LF
Toshiba Semiconductor and Storage
-
2N7002DWH6327XTSA1
Infineon Technologies
-
2N7002BKS,115
Nexperia USA Inc.
-
DMG1016UDW-7
Diodes Incorporated
-
UM6K33NTN
Rohm Semiconductor
-
DMG6602SVT-7
Diodes Incorporated
-
EM6K34T2CR
Rohm Semiconductor
-
UM6K34NTCN
Rohm Semiconductor
-
DMG6601LVT-7
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
