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Diodes Incorporated DMP4026LK3Q-13
- Part No.:
- DMP4026LK3Q-13
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
DMP4026LK3Q-13.pdf
- Description:
- MOSFET BVDSS: 31V~40V TO252 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:5,930
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Product details
Overview
DMP4026LK3Q-13 from Diodes Incorporated is a 40V P-channel enhancement-mode MOSFET in TO252 (DPAK) package, rated for -40A continuous drain current at TC = +25°C, with RDS(ON) of 25mΩ @ VGS = -10V and 45mΩ @ VGS = -4.5V. It is AEC-Q101 qualified, PPAP-capable, and designed for automotive motor control, DC-DC converters, backlighting, and printer equipment.
For engineers reviewing the DMP4026LK3Q-13 datasheet, DMP4026LK3Q-13 pinout, DMP4026LK3Q-13 application, or DMP4026LK3Q-13 equivalent, key selection criteria include its -40V VDSS, low on-resistance at 4.5V gate drive, 100% UIS-tested ruggedness, IATF 16949 manufacturing, and thermal resistance of 1.77°C/W junction-to-case.
Technical Context
This P-channel MOSFET operates with a gate threshold voltage range of -0.8V to -1.8V, enabling robust turn-on under low-voltage automotive conditions. Its dynamic parameters include Ciss = 2064pF, Qg = 45.8nC (at VGS = -10V), and fast switching times (tD(ON) = 4.3ns, tF = 23.9ns), supporting high-frequency DC-DC conversion.
The device features a thermally optimized TO252 package with exposed drain pad, delivering 70W power dissipation at TC = +25°C and RθJC = 1.77°C/W. Its body diode has VSD = -0.7V @ IS = -1A and supports -40A maximum forward current, suitable for synchronous rectification and bidirectional load switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | -40V - Withstands reverse drain-source voltage up to 40V without breakdown, critical for 24V automotive bus protection. |
| RDS(ON) | 25mΩ @ VGS = -10V - Enables <1W conduction loss at 20A, reducing thermal stress in high-current motor drivers. |
| ID (Continuous) | -40A @ TC = +25°C - Supports high-power loads such as HVAC blowers and seat actuators without external heatsinking. |
| Qg | 45.8nC @ VGS = -10V - Determines gate drive power requirement; enables efficient PWM operation up to ~500kHz with standard gate drivers. |
| RθJC | 1.77°C/W - Allows direct thermal coupling to PCB copper or heatsink, supporting 70W steady-state dissipation at case temperature. |
| EAS | 78.7mJ - Energy rating for unclamped inductive switching events, ensuring reliability in relay/snubberless solenoid drive circuits. |
| VGS(TH) | -0.8V to -1.8V - Ensures guaranteed turn-on with 3.3V or 5V logic-level gate drivers in low-voltage microcontroller systems. |
Pinout & Package
Package: TO252 (DPAK), surface-mount, with exposed drain pad for thermal and electrical connection. Molded plastic housing meets UL 94V-0 flammability rating and J-STD-020 Level 3 moisture sensitivity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Source) | Source terminal (P-channel) | Connects to higher potential rail; serves as reference node for gate drive and current return path. |
| Pin 2 (Gate) | Control input | Receives negative gate-source voltage to enhance channel; requires ESD protection due to ±20V VGS rating. |
| Pin 3 (Drain) | Power output / high-side switch node | Exposed metal pad - must be soldered to large copper area for thermal management and low-inductance current return. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification & PPAP support | Validated for automotive production use with full change control, traceability, and IATF 16949 manufacturing. |
| 100% UIS tested in production | Each unit withstands unclamped inductive switching stress, eliminating need for external snubbers in solenoid/relay drivers. |
| Low RDS(ON) at 4.5V gate drive | 45mΩ @ VGS = -4.5V enables compatibility with 5V microcontrollers and reduces gate driver complexity. |
| Green, RoHS-compliant construction | Halogen- and antimony-free molding compound (<900ppm Br/Cl, <1000ppm Sb) meets global environmental compliance mandates. |
| Optimized for thermal performance | 1.77°C/W RθJC and exposed drain pad allow >70W power handling with minimal PCB area, simplifying thermal design. |
Applications
| Motor Control | DC-DC Converters |
|---|---|
Use Scenario: Driving brushed DC motors in automotive HVAC, power seats, and window lift modules. IC Role / Device Role / Timing Role: High-side P-channel switch controlling motor direction and braking via PWM. Use Value: Low 45mΩ RDS(ON) at 4.5V gate drive minimizes conduction loss during battery-sag conditions (e.g., cold-crank at 6V). | Use Scenario: Synchronous rectification in buck converters powering ADAS sensors and infotainment subsystems. IC Role / Device Role / Timing Role: Secondary-side switch replacing Schottky diode to improve efficiency and reduce heat generation. Use Value: 78.7mJ avalanche energy rating ensures robustness against inductive kickback during transient load steps. |
| Automotive Backlighting | Printer Equipment |
Use Scenario: LED current regulation in instrument cluster and center display backlight drivers. IC Role / Device Role / Timing Role: High-side dimming switch modulating LED string current with PWM frequency >1kHz. Use Value: Fast 23.9ns fall time and low Qgd (6.7nC) minimize switching losses and EMI during high-frequency dimming. | Use Scenario: Paper feed and fuser heater control in laser printers and multifunction peripherals. IC Role / Device Role / Timing Role: Load switch isolating 24V/48V power rails during standby and fault conditions. Use Value: -40V VDSS and -40A ID rating support peak inrush currents and sustained heater loads without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar P-channel MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMT4007LPSQ-13 | Same TO252 package, but -40V/-30A rating and 32mΩ @ -4.5V; lower current capability and higher RDS(ON). | Less suitable for 40A motor loads; better fit for space-constrained 20–25A DC-DC stages. | Select when board area is constrained and peak current ≤25A; verify thermal margin with RθJC = 2.0°C/W. |
| IPB40P04P4L-02 | TO263 package, -40V/-40A, 22mΩ @ -10V but only 38mΩ @ -4.5V; higher gate charge (62nC). | Requires larger footprint and stronger gate driver; better for high-efficiency 12V systems where 10V drive is available. | Prefer for designs using dedicated gate drivers and needing marginally lower RDS(ON) at full gate voltage. |
Compared with DMT4007LPSQ-13 and IPB40P04P4L-02, the DMP4026LK3Q-13 uniquely balances 40A current capability, 45mΩ on-resistance at 4.5V, and AEC-Q101 PPAP readiness in TO252 - making it optimal for cost-sensitive, thermally constrained automotive modules requiring logic-level drive.
Availability
DMP4026LK3Q-13 is available at Aetrix Electronics and suitable for automotive motor control, DC-DC converter design, and printer power management requiring stable component supply across production lifecycles.
Supply support for DMP4026LK3Q-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 components for automotive, industrial, and computing markets.
The DMP4026LK3Q-13 belongs to Diodes' AEC-Q101-qualified PowerMOS family, engineered specifically for automotive power switching applications demanding ruggedness, thermal efficiency, and process-controlled manufacturing.
FAQ
What is the maximum allowable gate-source voltage for DMP4026LK3Q-13?
The absolute maximum VGS is ±20V per the datasheet's Maximum Ratings table. Exceeding this risks permanent gate oxide damage. For reliable operation, gate drive should be limited to -10V to -12V for full enhancement and avoid overshoot beyond ±15V during switching transients.
Does DMP4026LK3Q-13 require a gate resistor for automotive PWM applications?
Yes - a series gate resistor (typically 5–22Ω) is recommended to dampen ringing, limit peak gate current, and control dV/dt. The device's 2.5Ω intrinsic gate resistance and 45.8nC total gate charge make external resistance essential for EMI control and MCU GPIO protection in 10–100kHz PWM motor drives.
How is thermal performance affected if the exposed drain pad is not soldered to PCB copper?
Without proper solder connection to ≥1in² of 2oz copper, RθJA degrades from 35°C/W to >60°C/W, causing junction temperature to exceed 150°C at just 15A. The exposed pad is electrically and thermally part of the drain - floating or undersized connections risk thermal runaway and premature failure.
Can DMP4026LK3Q-13 replace an N-channel MOSFET in high-side switching configurations?
Yes - as a P-channel device, it is inherently suited for high-side switching without bootstrap circuitry. However, its -40A rating applies only at TC = +25°C; at 105°C case temperature, derated current drops to ~22A. System-level thermal design must ensure case temperature remains within specification for target load current.
DMP4026LK3Q-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:
- Active
- FET Type:
- P-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 40 V
- Current - Continuous Drain (Id) @ 25°C:
- 40A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 25mOhm @ 3A, 10V
- Vgs(th) (Max) @ Id:
- 1.8V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 45.8 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 2064 pF @ 20 V
- FET Feature:
- -
- Power Dissipation (Max):
- 3.5W (Ta), 70W (Tc)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252 (DPAK)
DMP4026LK3Q-13 FAQ
1.How can I place an order for DMP4026LK3Q-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMP4026LK3Q-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 DMP4026LK3Q-13 reliable?
The price and inventory of DMP4026LK3Q-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMP4026LK3Q-13 is usually 5 days.
3.What payment methods are accepted for DMP4026LK3Q-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMP4026LK3Q-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMP4026LK3Q-13?
DMP4026LK3Q-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMP4026LK3Q-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 DMP4026LK3Q-13?
For technical support, including DMP4026LK3Q-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMP4026LK3Q-13 requirements.
6.How does Aetrix verify that DMP4026LK3Q-13 is sourced from the original manufacturer or authorized distributors?
All DMP4026LK3Q-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 DMP4026LK3Q-13 meets industry standards.
7.What is the process for return or replacement of DMP4026LK3Q-13?
All DMP4026LK3Q-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMP4026LK3Q-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 DMP4026LK3Q-13 part is unused and in its original packaging.
Return procedure for DMP4026LK3Q-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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