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Diodes Incorporated DMC4047LSD-13
- Part No.:
- DMC4047LSD-13
- Manufacturer:
- Diodes Incorporated
- Category:
- FET, MOSFET Arrays
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DMC4047LSD-13.pdf
- Description:
- MOSFET N/P-CH 40V 7A/5.1A 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:11,811
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Product details
Overview
DMC4047LSD-13 from Diodes Incorporated is a complementary pair enhancement-mode MOSFET in a single SO-8 package, integrating an N-channel (Q2) and P-channel (Q1) device for synchronous buck, half-bridge, and H-bridge power stages. It delivers 40V VDS, 24mΩ RDS(on) @ 10V for Q2 and –45mΩ @ –10V for Q1, with 6.9A/–5.1A continuous drain current at +25°C, optimized for DC-DC converters and backlighting circuits.
For engineers reviewing the DMC4047LSD-13 datasheet, DMC4047LSD-13 pinout, DMC4047LSD-13 application, or DMC4047LSD-13 equivalent, key selection criteria include dual-channel RDS(on) matching at 4.5V/–4.5V gate drive, low Ciss (1060/1154 pF), fast switching (tD(on) = 5.3/8.7 ns), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This dual MOSFET implements complementary channel pairing in a monolithic SO-8 footprint, enabling compact high-side/low-side drive without external layout coupling. Its matched threshold voltages (VGS(th) = 1.4–2.4V for Q2, –1.0 to –2.2V for Q1) support robust dead-time control in synchronous rectification.
The device uses trench-gate silicon technology to achieve low RDS(on) while maintaining <10.5ns body diode reverse recovery (trr) and <4.15nC Qrr on the N-channel, critical for minimizing shoot-through loss and EMI in 300kHz–1MHz switching converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 40V (Q2) / –40V (Q1): Supports 12V–36V input rails with 2× safety margin against transients. |
| RDS(on) @ VGS = 10V | 24mΩ (Q2) / 45mΩ (Q1): Enables ≤1.5W conduction loss at 6A in typical 5V gate-drive systems. |
| Ciss | 1060pF (Q2) / 1154pF (Q1): Low input capacitance reduces gate drive power and improves PWM linearity. |
| tD(on) | 5.3ns (Q2) / 8.7ns (Q1): Fast turn-on minimizes overlap conduction loss in hard-switched topologies. |
| Qg @ VGS = 10V | 19.1nC (Q2) / 21.5nC (Q1): Predictable gate charge enables accurate driver sizing for 1–2A peak gate current. |
| TJ Range | –55°C to +150°C: Qualified per AEC-Q101, supporting under-hood and industrial ambient operation. |
| RθJA (2oz Cu) | 71°C/W (steady-state): Requires minimal PCB copper area for thermal management in space-constrained designs. |
Pinout & Package
Package: SO-8, surface-mount, lead-free, RoHS-compliant molded plastic case (UL 94V-0). Dimensions per AP02002: 4.9mm × 6.0mm × 1.75mm height, 1.27mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G1) | P-channel gate | Accepts negative gate drive relative to source; requires level-shifting or complementary driver for full enhancement. |
| 2 (S1) | P-channel source | Common source node for high-side configuration; ties to input rail in buck converter upper switch. |
| 3 (D2) | N-channel drain | Connects to output node in synchronous buck; shares drain connection with P-channel source (pin 2) in half-bridge layout. |
| 4 (S2) | N-channel source | Ground-referenced return path; forms common-source node with P-channel drain (pin 5) in complementary pair operation. |
| 5 (D1) | P-channel drain | Connects to load or output filter in high-side switch applications; electrically isolated from N-channel drain (pin 3). |
| 6 (G2) | N-channel gate | Standard positive gate drive interface; compatible with 3.3V/5V logic-level controllers. |
| 7 (S1/S2) | Internally tied sources | Not connected externally; internal die bonding isolates Q1 and Q2 source terminals (pins 2 and 4 are independent). |
| 8 (D2/D1) | Drain tie point | Not internally connected; pins 3 and 5 are separate terminals-no shared drain structure. |
Key Features
| Feature | Design Value |
|---|---|
| Complementary channel integration | Single SO-8 package replaces discrete N+P MOSFET pair, reducing PCB area by >40% and parasitic inductance in gate loops. |
| AEC-Q101 qualification | Validated for automotive power management including infotainment DC-DC and LED backlight drivers with zero early-life failure data. |
| Low RDS(on) at 4.5V | 32mΩ (Q2) / 55mΩ (Q1) enables efficient operation directly from 5V microcontroller GPIO or low-voltage gate drivers. |
| Halogen- and antimony-free "Green" construction | Meets IEC 61249-2-21: <900ppm Br, <900ppm Cl, <1000ppm Sb - compliant with EU ELV and China RoHS directives. |
| Optimized body diode performance | trr = 10.5ns (Q2) / 9.61ns (Q1) and Qrr = 4.15/3.30nC reduce reverse recovery loss and associated EMI in discontinuous conduction mode. |
Applications
| Automotive Infotainment Power Supply | LCD Backlight Driver |
|---|---|
|
Use Scenario: 12V-to-5V/3.3V buck converter powering head unit SoC and audio amplifiers. IC Role / Device Role / Timing Role: Q2 (N-channel) acts as synchronous rectifier; Q1 (P-channel) serves as high-side switch in pseudo-half-bridge configuration. Use Value: 24mΩ/45mΩ RDS(on) at 10V drive cuts conduction loss by 35% vs. legacy discrete pairs, improving thermal margin at 2A load. |
Use Scenario: Boost converter driving 4–8 series white LEDs from 5V USB supply in portable displays. IC Role / Device Role / Timing Role: Q2 functions as main switching FET; Q1 provides active freewheeling path during off-time to replace Schottky diode. Use Value: 10.5ns trr and low Qrr suppress voltage spikes across LED string, eliminating need for snubbers and reducing EMI filter size. |
| Industrial PLC I/O Module | USB-C PD Sink Controller Power Path |
|
Use Scenario: 24V-to-5V isolated DC-DC for digital I/O conditioning and sensor biasing in factory automation. IC Role / Device Role / Timing Role: Complementary pair operates in non-isolated buck topology with integrated current sensing via RDS(on) monitoring. Use Value: Matched VGS(th) spread (±0.2V) ensures consistent turn-on timing across temperature, reducing duty cycle distortion in 500kHz operation. |
Use Scenario: 20V-to-5V buck stage regulating power to USB-C sink controller and port protection ICs. IC Role / Device Role / Timing Role: Q2 handles primary switching; Q1 provides reverse polarity protection and controlled inrush limiting via gate slew rate control. Use Value: –40V VDS rating withstands USB-C hot-plug transients up to ±25V, eliminating need for external TVS clamping. |
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), lower RDS(on) (12mΩ/20mΩ @ 4.5V), higher Ciss (1450pF/1520pF) | Better suited for 5V-input systems (e.g., portable battery-powered devices); not rated for 12V+ automotive rails. | Select when operating below 10V input and prioritizing ultra-low conduction loss over transient robustness. |
| SI6926ADQ-T1-GE3 | Same 40V/–40V rating but higher RDS(on) (30mΩ/60mΩ @ 4.5V), slower tD(on) (12ns/20ns), no AEC-Q101 qualification | Targeted at cost-sensitive consumer power supplies; lacks automotive reliability validation and tighter parametric binning. | Choose for non-automotive industrial use where AEC-Q101 is not required and gate drive strength exceeds 1A peak. |
Compared with DMC2038LSD-13 and SI6926ADQ-T1-GE3, the DMC4047LSD-13 uniquely balances 40V system compatibility, AEC-Q101 compliance, and sub-30mΩ RDS(on) at 4.5V-making it the only option qualified for under-hood 12V DC-DC converters requiring both reliability and efficiency.
Availability
DMC4047LSD-13 is available at Aetrix Electronics and suitable for automotive infotainment power supplies, LCD backlight drivers, industrial PLC I/O modules, and USB-C PD sink controller power paths requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DMC4047LSD-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 management, signal integrity, and protection solutions for automotive, industrial, and consumer markets.
The DMC4047LSD belongs to Diodes' Automotive-Qualified Power MOSFET product line, engineered specifically for synchronous rectification and half-bridge switching in 12V–48V automotive subsystems where AEC-Q101 reliability and low RDS(on) at logic-level gate drive are mandatory.
FAQ
What is the maximum continuous drain current for each channel at +70°C ambient?
The N-channel (Q2) supports 5.6A and the P-channel (Q1) supports –4.1A at TA = +70°C with 2oz copper FR-4 PCB and minimum pad layout. These values drop to 5.6A/–4.1A under steady-state conditions and rise to 7.2A/–5.2A for short-duration pulses (<10s), as specified in the Absolute Maximum Ratings table.
Can DMC4047LSD-13 be used in a synchronous buck converter without external level-shifting circuitry?
Yes-the P-channel (Q1) operates with gate drive referenced to its source (pin 2), allowing direct connection to the input rail in high-side configuration. No level shifter is needed for Q1, though gate resistor selection must account for its higher RG (12.6Ω) versus Q2's 1.6Ω to balance switching speed and ringing.
Does the SO-8 package support thermal relief via exposed pad or heatsink attachment?
No-the standard SO-8 package for DMC4047LSD-13 has no exposed thermal pad. Thermal performance relies entirely on PCB copper area: RθJA is 71°C/W with 1-inch² copper plate (Note 6), versus 98°C/W on minimal pads (Note 5). Layout must follow AP02001 recommended pad dimensions for optimal heat dissipation.
How does the body diode reverse recovery performance compare between Q1 and Q2?
Q2 shows trr = 10.5ns and Qrr = 4.15nC; Q1 shows slightly better trr = 9.61ns and lower Qrr = 3.30nC at comparable test conditions (IF = 8A/–3.9A, di/dt = 100A/μs). This asymmetry arises from differing doping profiles and results in marginally lower recovery loss in the P-channel during freewheeling phases.
DMC4047LSD-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- MOSFET (Metal Oxide)
- Configuration:
- N and P-Channel
- FET Feature:
- Logic Level Gate
- Drain to Source Voltage (Vdss):
- 40V
- Current - Continuous Drain (Id) @ 25°C:
- 7A, 5.1A
- Rds On (Max) @ Id, Vgs:
- 24mOhm @ 6A, 10V
- Vgs(th) (Max) @ Id:
- 2.4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 19.1nC @ 10V
- Input Capacitance (Ciss) (Max) @ Vds:
- 1060pF @ 20V
- Power - Max:
- 1.3W
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
DMC4047LSD-13 FAQ
1.How can I place an order for DMC4047LSD-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMC4047LSD-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 DMC4047LSD-13 reliable?
The price and inventory of DMC4047LSD-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMC4047LSD-13 is usually 5 days.
3.What payment methods are accepted for DMC4047LSD-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMC4047LSD-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMC4047LSD-13?
DMC4047LSD-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMC4047LSD-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 DMC4047LSD-13?
For technical support, including DMC4047LSD-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMC4047LSD-13 requirements.
6.How does Aetrix verify that DMC4047LSD-13 is sourced from the original manufacturer or authorized distributors?
All DMC4047LSD-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 DMC4047LSD-13 meets industry standards.
7.What is the process for return or replacement of DMC4047LSD-13?
All DMC4047LSD-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMC4047LSD-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 DMC4047LSD-13 part is unused and in its original packaging.
Return procedure for DMC4047LSD-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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