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Diodes Incorporated DMC1229UFDB-7
- Part No.:
- DMC1229UFDB-7
- Manufacturer:
- Diodes Incorporated
- Category:
- FET, MOSFET Arrays
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
DMC1229UFDB-7.pdf
- Description:
- MOSFET N/P-CH 12V 5.6A 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,325
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Product details
Overview
DMC1229UFDB from Diodes Incorporated is a complementary pair enhancement-mode MOSFET in a single U-DFN2020-6 (Type B) package, integrating an N-channel (12V, 29mΩ @ 4.5V, 5.6A) and P-channel (−12V, 61mΩ @ −4.5V, −3.8A) device for bidirectional power control. It enables compact load switching and power management in space-constrained portable power adaptors and battery-powered systems.
For engineers reviewing the DMC1229UFDB datasheet, DMC1229UFDB pinout, DMC1229UFDB application, or DMC1229UFDB equivalent, key selection criteria include dual-channel RDS(ON) matching at low gate drive (1.5–4.5V), thermal resistance (RθJA = 92°C/W), low-profile packaging (0.6mm max height), and complementary threshold voltages (±0.4 to ±1.0V).
Technical Context
This dual MOSFET implements independent N- and P-channel channels sharing a common source configuration in a monolithic U-DFN2020-6 (Type B) leadless package. Its design supports synchronous half-bridge operation with matched gate thresholds and low input capacitance (Ciss = 914/915 pF) for fast switching.
The device operates across −55°C to +150°C junction temperature, with guaranteed RDS(ON) performance down to VGS = ±1.5V and integrated body diodes (VSD = 0.6–1.2V / −0.65–−1.2V). Thermal resistance values are specified for 1"×1" FR-4 PCB with 2oz copper.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | ±12V - Supports rail-to-rail operation in 12V systems with margin against transients. |
| RDS(ON) (Q1 @ 4.5V) | 29mΩ max - Enables <175mW conduction loss at 5.6A continuous drain current. |
| RDS(ON) (Q2 @ −4.5V) | 61mΩ max - Ensures symmetric on-resistance for balanced bidirectional control. |
| Qg (Q1/Q2) | 10.5/10.7nC - Low gate charge reduces drive power and enables efficient PWM at >1MHz. |
| Ciss | 914/915pF - Minimizes Miller effect and improves switching stability in high-frequency loads. |
| RθJA | 92°C/W - Defines thermal derating on standard PCB; limits steady-state power to 1.4W. |
| Package | U-DFN2020-6 (Type B) - 2.0×2.0mm footprint, 0.6mm height, NiPdAu terminals for reliable reflow. |
Pinout & Package
U-DFN2020-6 (Type B) is a 6-terminal, bottom-exposed thermal pad, leadless plastic package with dimensions 2.0×2.0×0.6mm. The exposed die pad enhances thermal dissipation and must be soldered to PCB ground plane for optimal RθJA.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D1 | N-Channel Drain | Main current path for high-side N-MOSFET; connects to positive supply or load input. |
| S1 | N-Channel Source | Common source node for N-channel; tied internally to S2 for complementary topology. |
| G1 | N-Channel Gate | Control terminal for N-MOSFET; requires ≥1.5V drive for partial turn-on, ≥4.5V for full conduction. |
| D2 | P-Channel Drain | Main current path for low-side P-MOSFET; connects to load output or ground return. |
| S2 | P-Channel Source | Common source node for P-channel; electrically connected to S1 per internal schematic. |
| G2 | P-Channel Gate | Control terminal for P-MOSFET; driven negative relative to S2 (e.g., 0V = ON, −4.5V = full conduction). |
Key Features
| Feature | Design Value |
|---|---|
| Complementary channel pairing | Matched VGS(TH) (±0.4–±1.0V) and RDS(ON) scaling enable coordinated gate drive without level-shifting. |
| Low-profile U-DFN2020-6 | 0.6mm max height allows integration into ultra-thin portable adapters and wearables. |
| Low input capacitance | Ciss = 914/915pF minimizes gate drive energy and supports >1MHz switching in DC-DC controllers. |
| Lead-free & green construction | Halogen- and antimony-free molding compound (UL 94V-0) meets RoHS 3 and automotive material compliance. |
| Moisture sensitivity level | MSL Level 1 - No bake requirement before reflow, simplifying SMT assembly logistics. |
Applications
| Battery Load Switch | USB Power Delivery Switch |
|---|---|
|
Use Scenario: Bidirectional power path control between Li-ion battery and system bus in portable medical monitors. IC Role / Device Role / Timing Role: Dual-channel MOSFET acts as reverse-polarity protected, low-loss load switch with fast turn-off (<20ns fall time) during fault detection. Use Value: 29/61mΩ RDS(ON) limits voltage drop to <350mV at 5A, preserving battery runtime and enabling accurate fuel gauging. |
Use Scenario: USB-C port power routing in docking stations supporting 20V/3A PD profiles. IC Role / Device Role / Timing Role: Complementary pair implements hot-swap control with independent gate timing for inrush limiting and overcurrent shutdown. Use Value: Matched Qg (10.5/10.7nC) ensures synchronized switching, reducing cross-conduction losses during state transitions. |
| Portable Power Adaptor | Industrial Sensor Node Power Management |
|
Use Scenario: Secondary-side synchronous rectification and output load switching in 12V/5A wall adapters. IC Role / Device Role / Timing Role: N-channel handles high-current forward path; P-channel manages reverse current blocking during no-load conditions. Use Value: Integrated body diodes (VSD = 0.6–1.2V) provide freewheeling capability without external components, saving board area. |
Use Scenario: Power gating for wireless sensor modules (BLE + environmental sensors) in predictive maintenance edge devices. IC Role / Device Role / Timing Role: Complementary pair isolates subsystems during sleep mode, reducing quiescent current to <1μA via gate threshold control. Use Value: VGS(TH) of ±0.4V enables direct MCU GPIO control (3.3V logic), eliminating level shifters and reducing BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar complementary MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMC2038LVT-7 | Higher RDS(ON) (42/85mΩ @ ±4.5V), larger U-DFN2030-6 package (2.0×3.0mm). | Lower current rating (4.5/−3.2A); suited for lower-power IoT nodes where thermal margin exceeds requirement. | Select when board layout allows larger footprint and higher on-resistance is acceptable for cost optimization. |
| SI6926ADQ-T1-GE3 | Asymmetric channel sizing (N: 12V/23mΩ, P: −12V/100mΩ); higher Ciss (1100/1300pF). | Designed for asymmetric duty-cycle applications like buck-boost converters; not optimized for matched load switching. | Prefer only when P-channel current demand is significantly lower than N-channel, and gate drive energy budget permits higher Ciss. |
Compared with DMC2038LVT-7 and SI6926ADQ-T1-GE3, the DMC1229UFDB delivers tighter RDS(ON) matching (29/61mΩ vs. 42/85mΩ and 23/100mΩ), smaller footprint (2.0×2.0mm), and lower Ciss, making it optimal for space- and efficiency-critical bidirectional power switches.
Availability
DMC1229UFDB is available at Aetrix Electronics and suitable for portable power adaptors, battery load switches, and USB-C power delivery systems requiring stable component supply and long-term production continuity.
Supply support for DMC1229UFDB 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.
The DMC1229UFDB belongs to Diodes' U-DFN complementary MOSFET product line, engineered for miniaturized, high-density power switching in battery-powered and portable electronics.
FAQ
What is the maximum continuous drain current for each channel at +70°C ambient?
The N-channel supports 4.4A and the P-channel supports −3.0A at TA = +70°C with VGS = ±4.5V, per the Absolute Maximum Ratings table. These values reflect thermal derating from the +25°C ratings (5.6A/−3.8A) due to reduced power dissipation capability at elevated ambient temperatures.
Can DMC1229UFDB be used in a synchronous buck converter topography?
No - the DMC1229UFDB is not configured for synchronous buck operation. Its internal connection ties S1 and S2 together, forming a common-source complementary pair best suited for load switching or half-bridge configurations, not high-side/low-side buck FETs requiring isolated sources.
Is the exposed thermal pad electrically connected to any internal node?
No - the exposed thermal pad is electrically isolated and intended solely for thermal conduction. Per the Mechanical Data section and package outline, it must be soldered to a PCB ground plane or dedicated thermal pad but carries no electrical signal or bias.
What is the gate threshold voltage range for reliable turn-on at room temperature?
The N-channel VGS(TH) is 0.4–1.0V and the P-channel is −0.4 to −1.0V at ID = 250μA. For robust conduction, drive the N-channel gate to ≥2.5V (RDS(ON) = 34mΩ) and the P-channel gate to ≤−2.5V (RDS(ON) = 81mΩ), ensuring sufficient overdrive beyond threshold.
DMC1229UFDB-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-UDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- -
- Configuration:
- N and P-Channel
- FET Feature:
- -
- Drain to Source Voltage (Vdss):
- 12V
- Current - Continuous Drain (Id) @ 25°C:
- 5.6A, 3.8A
- Rds On (Max) @ Id, Vgs:
- 29mOhm @ 5A, 4.5V
- Vgs(th) (Max) @ Id:
- 1V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 19.6nC @ 8V
- Input Capacitance (Ciss) (Max) @ Vds:
- 914pF @ 6V
- Power - Max:
- 1.4W
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-DFN2020-6 (Type B)
DMC1229UFDB-7 FAQ
1.How can I place an order for DMC1229UFDB-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMC1229UFDB-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 DMC1229UFDB-7 reliable?
The price and inventory of DMC1229UFDB-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMC1229UFDB-7 is usually 5 days.
3.What payment methods are accepted for DMC1229UFDB-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMC1229UFDB-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMC1229UFDB-7?
DMC1229UFDB-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMC1229UFDB-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 DMC1229UFDB-7?
For technical support, including DMC1229UFDB-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMC1229UFDB-7 requirements.
6.How does Aetrix verify that DMC1229UFDB-7 is sourced from the original manufacturer or authorized distributors?
All DMC1229UFDB-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 DMC1229UFDB-7 meets industry standards.
7.What is the process for return or replacement of DMC1229UFDB-7?
All DMC1229UFDB-7 units undergo pre-shipment inspection (PSI). If there is an issue with DMC1229UFDB-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 DMC1229UFDB-7 part is unused and in its original packaging.
Return procedure for DMC1229UFDB-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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