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Diodes Incorporated DMN4015LK3-13
- Part No.:
- DMN4015LK3-13
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
DMN4015LK3-13.pdf
- Description:
- MOSFET N-CH 40V 13.5A TO252-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,409
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Product details
Overview
DMN4015LK3-13 from Diodes Incorporated is a 40V N-channel enhancement-mode MOSFET in TO252-3L (DPAK) package, featuring 15 mΩ RDS(on) at VGS = 10 V, 20.8 A continuous drain current at TA = 25°C, and fast switching with 7.8 ns turn-on delay. It serves as a high-efficiency power switch in DC-DC converters and LED backlighting circuits.
For engineers reviewing the DMN4015LK3-13 datasheet, DMN4015LK3-13 pinout, DMN4015LK3-13 application, or DMN4015LK3-13 equivalent, key selection criteria include RDS(on) at 4.5 V (20 mΩ), body diode forward voltage (0.87 V), thermal resistance RθJA (28.6 °C/W on 50 mm × 50 mm 2 oz FR4), and SOA limits for pulsed operation.
Technical Context
This MOSFET employs planar trench-gate technology to achieve low conduction loss while maintaining controlled gate charge (Qg = 42 nC at VGS = 10 V) and low output capacitance (Coss = 338 pF). Its gate threshold voltage (1.0–3.0 V) ensures reliable turn-on with standard logic-level drivers.
The integrated body diode exhibits 141 ns reverse recovery time and 872 nC Qrr, supporting synchronous rectification in buck converters. Thermal design is enabled by validated RθJL = 0.85 °C/W (junction-to-lead), allowing direct heatsinking via the exposed drain pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 40 V - Maximum blocking voltage before avalanche breakdown; suitable for 24 V input systems with margin. |
| RDS(on) | 15 mΩ @ VGS = 10 V - Enables <1.5 W conduction loss at 20 A; critical for high-current power stages. |
| ID (continuous) | 20.8 A @ TA = 25°C - Sustains full load in compact DC-DC designs without forced airflow. |
| Qg | 42 nC @ VGS = 10 V - Determines gate drive power requirement and switching loss trade-off. |
| VSD | 0.87 V @ IS = 14 A - Low body diode forward drop reduces freewheeling loss in synchronous topologies. |
| tr/tf | 18.5 ns / 14.9 ns - Fast edge rates minimize transition losses in MHz-range switching applications. |
Pinout & Package
Package: TO252-3L (DPAK), surface-mount, with exposed drain pad for thermal and electrical connection. Molded plastic case meets UL 94V-0; matte tin-plated copper leadframe ensures solderability per MIL-STD-202.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D (Drain) | Main current path output terminal | Connected to exposed metal tab; primary thermal path and high-current return node. |
| S (Source) | Reference node for gate control and current return | Low-inductance source connection essential for stable gate drive and EMI control. |
| G (Gate) | Control electrode for channel modulation | High-impedance input requiring <42 nC charge for full enhancement; sensitive to ESD. |
Key Features
| Feature | Design Value |
|---|---|
| Low RDS(on) at 4.5 V | 20 mΩ - Enables direct interface with 3.3 V/5 V microcontrollers without level-shifting. |
| Fast switching speed | 7.8 ns tD(on), 37.3 ns tD(off) - Reduces total switching loss in high-frequency (>500 kHz) converters. |
| RoHS-compliant "Green" construction | No halogens or antimony - Meets EU environmental directives and supports lead-free reflow profiles. |
| Validated SOA performance | 72.8 A pulsed drain current limit - Supports peak-load handling in motor drives and transient-suppression circuits. |
Applications
| LED Backlighting | DC-DC Buck Converter |
|---|---|
|
Use Scenario: Driving parallel LED strings in LCD monitors using constant-current PWM dimming. IC Role / Device Role / Timing Role: High-side power switch controlling LED current path; operates at 1–20 kHz PWM frequency. Use Value: 15 mΩ RDS(on) minimizes heat generation under 15 A steady-state current, enabling compact heatsinkless layout. |
Use Scenario: Main synchronous rectifier in 12 V → 3.3 V step-down converter for FPGA core supply. IC Role / Device Role / Timing Role: Low-side switch in synchronous buck topology; commutates at 1 MHz with 50% duty cycle. Use Value: 0.87 V VSD and 141 ns trr reduce body-diode conduction loss and reverse-recovery spikes during dead-time. |
| Power Management Module | Load Switch for Industrial I/O |
|
Use Scenario: Integrated power rail switch in programmable logic controller (PLC) backplane modules. IC Role / Device Role / Timing Role: Controlled enable/disable of 24 V auxiliary rails; activated via microcontroller GPIO. Use Value: 20.8 A continuous rating supports hot-swap sequencing; 28.6 °C/W RθJA enables thermal management on standard PCBs. |
Use Scenario: Inrush-limited power delivery to field sensors and actuators in factory automation systems. IC Role / Device Role / Timing Role: Low-impedance pass element with external gate resistor for slew-rate control. Use Value: 15 mΩ RDS(on) limits voltage drop to <300 mV at 20 A, preserving sensor accuracy and reducing self-heating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN3022LSD-13 | RDS(on) = 22 mΩ @ 10 V; lower VDSS (30 V); smaller TSOP-6 package | Limited to ≤12 V input systems; unsuitable for 24 V bus applications due to reduced voltage margin | Select when board space is constrained and system voltage stays below 15 V; verify SOA at elevated temperature. |
| IPB017N04LGATMA1 | RDS(on) = 1.7 mΩ @ 10 V; TO263-3 package; higher cost and larger footprint | Enables >100 A conduction in paralleled configurations; overqualified for ≤25 A single-device use | Choose only when ultra-low conduction loss justifies added cost and layout area; requires enhanced thermal design. |
Compared with DMN3022LSD-13, DMN4015LK3-13 provides 40 V robustness for industrial 24 V systems; versus IPB017N04LGATMA1, it offers optimal cost-performance balance for discrete 20 A switching without over-engineering.
Availability
DMN4015LK3-13 is available at Aetrix Electronics and suitable for LED backlighting, DC-DC converters, and industrial power management modules requiring stable component supply and RoHS-compliant sourcing.
Supply support for DMN4015LK3-13 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-efficiency power solutions and signal integrity products for industrial, computing, and consumer markets.
The DMN4015LK3-13 belongs to Diodes' PowerMOS™ family, engineered specifically for high-current, medium-voltage switching in space-constrained power conversion systems where thermal performance and gate drive simplicity are critical.
FAQ
Is DMN4015LK3-13 suitable for 24 V automotive body electronics?
No - although rated for 40 V VDSS, this part is not AEC-Q101 qualified and lacks automotive-grade qualification documentation. Its maximum junction temperature (150°C) and thermal resistance (28.6 °C/W) meet industrial requirements but do not satisfy automotive reliability or test standards.
What is the recommended PCB layout for thermal performance?
Use a minimum 50 mm × 50 mm copper pour on the drain pad layer, connected via ≥6 thermal vias (0.3 mm diameter) to internal ground planes. The datasheet specifies 28.6 °C/W RθJA assumes 2 oz copper coverage on FR4; reducing copper area increases thermal resistance proportionally.
Can DMN4015LK3-13 be used in linear regulator mode?
No - its Safe Operating Area (SOA) chart shows limited DC capability: at VDS = 10 V, maximum continuous current is ~4.5 A. Linear operation would exceed power dissipation limits (4.36 W max) and cause thermal runaway without active cooling.
Does the body diode support synchronous rectification?
Yes - the body diode has 0.87 V forward voltage at 14 A and 141 ns reverse recovery time, making it viable for non-critical synchronous rectification in buck converters up to 1 MHz. However, dedicated Schottky or GaN-based solutions offer superior efficiency in high-performance designs.
DMN4015LK3-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 40 V
- Current - Continuous Drain (Id) @ 25°C:
- 13.5A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 15mOhm @ 14A, 10V
- Vgs(th) (Max) @ Id:
- 3V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 42 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 2072 pF @ 20 V
- FET Feature:
- -
- Power Dissipation (Max):
- 2.19W (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-3
DMN4015LK3-13 FAQ
1.How can I place an order for DMN4015LK3-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMN4015LK3-13 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 DMN4015LK3-13 reliable?
The price and inventory of DMN4015LK3-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMN4015LK3-13 is usually 5 days.
3.What payment methods are accepted for DMN4015LK3-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMN4015LK3-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMN4015LK3-13?
DMN4015LK3-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMN4015LK3-13 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 DMN4015LK3-13?
For technical support, including DMN4015LK3-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMN4015LK3-13 requirements.
6.How does Aetrix verify that DMN4015LK3-13 is sourced from the original manufacturer or authorized distributors?
All DMN4015LK3-13 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 DMN4015LK3-13 meets industry standards.
7.What is the process for return or replacement of DMN4015LK3-13?
All DMN4015LK3-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMN4015LK3-13, 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 DMN4015LK3-13 part is unused and in its original packaging.
Return procedure for DMN4015LK3-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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