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Diodes Incorporated DMC3021LK4-13
- Part No.:
- DMC3021LK4-13
- Manufacturer:
- Diodes Incorporated
- Category:
- FET, MOSFET Arrays
- Package:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Datasheet:
-
DMC3021LK4-13.pdf
- Description:
- MOSFET N/P-CH 30V 9.4A TO252-4L
- Quantity:
- Payment:
- Shipping:
Inventory:7,103
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Product details
Overview
DMC3021LK4-13 from Diodes Incorporated is a complementary pair enhancement-mode MOSFET in a single TO252-4L package, integrating an N-channel (30V, 21mΩ @ 10V) and P-channel (−30V, 39mΩ @ −10V) device for half-bridge or level-shifting power stages. It delivers 14A continuous drain current per channel at TC = +25°C and supports high-efficiency DC-DC converters, motor control, and backlighting circuits with low gate threshold voltage and 0.6mm profile.
For engineers reviewing the DMC3021LK4-13 datasheet, DMC3021LK4-13 pinout, DMC3021LK4-13 application, or DMC3021LK4-13 equivalent, this dual-channel MOSFET enables compact, thermally efficient power stage design where complementary switching, low RDS(ON), and AEC-Q101 qualification are required.
Technical Context
This device integrates matched N- and P-channel MOSFETs on a single die substrate within a thermally enhanced TO252-4L package, enabling synchronous buck, H-bridge, and load-switch topologies without external pairing. Its gate threshold voltages (1.0–2.1V for Q1; −1.0 to −2.2V for Q2) support direct microcontroller drive with 3.3V/5V logic.
The dual-channel structure shares a common drain connection (pins 1 & 4), allowing bidirectional current flow in half-bridge configurations. Thermal resistance RθJC = 5.5°C/W ensures effective heat transfer to the PCB copper plane, while low Ciss (751pF / 1039pF) and fast switching times (tD(on) = 2.5ns / 10.1ns) reduce switching losses in high-frequency (>500kHz) power conversion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 30V (N-ch) / −30V (P-ch): Supports 24V rail systems with 20% margin against transients. |
| RDS(ON) max | 21mΩ @ 10V (Q1), 39mΩ @ −10V (Q2): Enables ≤1.5W conduction loss at 7A per channel. |
| ID continuous | 14A @ TC = +25°C (both channels): Sustains full-load current without derating when mounted on 2oz copper thermal pad. |
| Qg total | 17.4nC (Q1), 21.1nC (Q2): Matches standard gate drivers (e.g., UCC27531) without requiring external boost. |
| RθJC | 5.5°C/W: Allows junction temperature rise of ≤77°C at 14A/21mΩ dissipation, simplifying thermal design. |
| AEC-Q101 | Qualified: Validated for automotive power modules, body electronics, and infotainment power supplies. |
Pinout & Package
Package: TO252-4L (DPAK variant with 4 terminals), molded green plastic, UL 94V-0 rated, 0.6mm profile, 4mm² footprint, 0.027g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Drain Q1) | N-channel drain | Shared high-side switching node; electrically tied to Pin 4 for complementary operation. |
| 2 (Source Q1) | N-channel source | Reference node for N-ch gate drive; connects to output in high-side switch configuration. |
| 3 (Gate Q1) | N-channel gate | Controls Q1 turn-on; threshold 1.0–2.1V enables direct 3.3V MCU interface. |
| 4 (Drain Q2) | P-channel drain | Shared low-side switching node; internally connected to Pin 1 for half-bridge topology. |
| - (Source Q2) | P-channel source | Connected to VCC rail; requires negative gate bias relative to source for turn-on. |
| - (Gate Q2) | P-channel gate | Controlled via inverted signal; threshold −1.0 to −2.2V mandates level-shifting for 3.3V logic. |
Key Features
| Feature | Design Value |
|---|---|
| Complementary integration | Single-package N+P pair eliminates layout mismatch, reduces parasitic inductance, and cuts BOM count by 1. |
| Low-profile packaging | 0.6mm height enables use in space-constrained applications such as LED driver modules and portable power tools. |
| Thermal performance | RθJC = 5.5°C/W allows >20W power handling with minimal heatsinking on 1-inch² 2oz copper. |
| AEC-Q101 qualification | Validated for automotive under-hood environments (−40°C to +150°C junction), including HTOL and ESD testing. |
| Green compliance | Halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb), RoHS-compliant, matte tin-plated terminals. |
Applications
| Automotive Body Control Module | Industrial DC-DC Buck Converter |
|---|---|
Use Scenario: Driving 12V solenoid valves and window lift motors in BCM subassemblies. IC Role / Device Role / Timing Role: Half-bridge power stage controlling bidirectional current flow through inductive loads. Use Value: Integrated complementary pair eliminates timing skew between N/P gates, reducing shoot-through risk during PWM commutation. |
Use Scenario: 24V-to-5V step-down converter powering FPGA I/O banks in programmable logic controllers. IC Role / Device Role / Timing Role: Synchronous rectifier pair in high-frequency (1MHz) buck regulator with integrated gate drive. Use Value: Low RDS(ON) and 17.4nC/21.1nC Qg enable >94% efficiency at 6A load with minimal thermal derating. |
| LCD Backlight Inverter | Brushless DC Motor Gate Driver |
Use Scenario: Boosting 5V to 30V for edge-lit LED strings in medical display panels. IC Role / Device Role / Timing Role: High-side N-MOSFET and low-side P-MOSFET in boost converter power stage. Use Value: Matched thermal characteristics ensure balanced channel aging across 10,000-hour operational life. |
Use Scenario: Six-step commutation in 24V BLDC fans used in HVAC and server cooling systems. IC Role / Device Role / Timing Role: One half-bridge per phase (three DMC3021LK4-13 units) driving motor windings. Use Value: 0.6mm profile allows placement directly beneath motor controller ICs, minimizing trace inductance and EMI. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar complementary MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMC2038LSD-13 | Lower voltage rating (20V/−20V), higher RDS(ON) (38mΩ/58mΩ), same TO252-4L package. | Better suited for 12V systems with tighter board height constraints but lower power density. | Select when operating below 15V input and thermal budget permits higher conduction loss. |
| SI6926ADQ-T1-GE3 | Higher voltage (30V/−30V), higher RDS(ON) (32mΩ/50mΩ), SO-8 package, no AEC-Q101 qualification. | Offers smaller footprint but inferior thermal performance (RθJC = 15°C/W) and no automotive validation. | Choose only for non-automotive consumer applications where PCB area is critical and ambient temperature remains <60°C. |
Compared with DMC2038LSD-13 and SI6926ADQ-T1-GE3, the DMC3021LK4-13 provides superior power density (21mΩ/39mΩ), automotive-grade reliability, and thermal capability - making it optimal for 24V industrial and automotive power stages where efficiency and long-term stability are prioritized over minimal footprint.
Availability
DMC3021LK4-13 is available at Aetrix Electronics and suitable for motor control, DC-DC converters, and backlighting applications requiring stable component supply, AEC-Q101 compliance, and consistent thermal performance across production batches.
Supply support for DMC3021LK4-13 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 power management, signal integrity, and protection solutions for automotive, industrial, and computing markets.
The DMC3021LK4-13 belongs to Diodes' PowerMOS™ complementary pair portfolio, engineered specifically for space-constrained, high-efficiency power conversion where matched N/P characteristics, low profile, and AEC-Q101 validation are mandatory.
FAQ
What is the maximum safe operating junction temperature for DMC3021LK4-13?
The absolute maximum junction temperature is +150°C, and the device is characterized for continuous operation across −55°C to +150°C. Derating begins at TJ > 125°C per the Safe Operating Area (SOA) curves in Figures 12 and 24, where pulsed current limits decrease significantly above 100°C ambient with standard FR-4 mounting.
Can DMC3021LK4-13 be driven directly by a 3.3V microcontroller GPIO?
Yes - the N-channel gate threshold (1.0–2.1V) allows full enhancement with 3.3V logic, but the P-channel threshold (−1.0 to −2.2V) requires either a dedicated level-shifter or gate driver with negative output capability; direct 3.3V drive of Q2 will result in partial turn-on and excessive conduction loss.
Is the shared drain connection (Pins 1 & 4) internally bonded or externally wired?
Pins 1 and 4 are internally connected to form a common drain node - confirmed by the top-view pinout diagram and mechanical drawings in DS35082 Rev. 6-3. This internal bond enables true half-bridge operation without external jumpering and minimizes loop inductance in high-di/dt applications.
Does DMC3021LK4-13 support avalanche energy handling, and what is its rated value?
Yes - the device is rated for 13mJ avalanche energy (EAS) with L = 0.1mH for both channels, verified per JEDEC JESD24-11. This enables robustness against inductive switching transients in motor drive and relay control applications without external snubbers.
DMC3021LK4-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Technology:
- MOSFET (Metal Oxide)
- Configuration:
- N and P-Channel, Common Drain
- FET Feature:
- Logic Level Gate
- Drain to Source Voltage (Vdss):
- 30V
- Current - Continuous Drain (Id) @ 25°C:
- 9.4A, 6.8A
- Rds On (Max) @ Id, Vgs:
- 21mOhm @ 7A, 10V
- Vgs(th) (Max) @ Id:
- 2.1V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 17.4nC @ 10V
- Input Capacitance (Ciss) (Max) @ Vds:
- 751pF @ 10V
- Power - Max:
- 2.7W
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-4L
DMC3021LK4-13 FAQ
1.How can I place an order for DMC3021LK4-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMC3021LK4-13 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 DMC3021LK4-13 reliable?
The price and inventory of DMC3021LK4-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMC3021LK4-13 is usually 5 days.
3.What payment methods are accepted for DMC3021LK4-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMC3021LK4-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMC3021LK4-13?
DMC3021LK4-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMC3021LK4-13 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 DMC3021LK4-13?
For technical support, including DMC3021LK4-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMC3021LK4-13 requirements.
6.How does Aetrix verify that DMC3021LK4-13 is sourced from the original manufacturer or authorized distributors?
All DMC3021LK4-13 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 DMC3021LK4-13 meets industry standards.
7.What is the process for return or replacement of DMC3021LK4-13?
All DMC3021LK4-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMC3021LK4-13, 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 DMC3021LK4-13 part is unused and in its original packaging.
Return procedure for DMC3021LK4-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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