Diodes Incorporated DMGD7N45SSD-13
- Part No.:
- DMGD7N45SSD-13
- Manufacturer:
- Diodes Incorporated
- Category:
- FET, MOSFET Arrays
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DMGD7N45SSD-13.pdf
- Description:
- MOSFET 2N-CH 450V 0.5A 8SO
- Quantity:
- Payment:

- Shipping:

Inventory:7
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Product details
Overview
DMGD7N45SSD-13 from Diodes Incorporated is a dual N-channel enhancement-mode MOSFET in SO-8 package, rated for 450V VDS, 4Ω RDS(on) at VGS = 10V, and 0.85A continuous drain current. It integrates two independent high-voltage switches with body diodes, optimized for DC-DC converters and backlighting circuits requiring compact, AEC-Q101-qualified power switching.
For engineers reviewing the DMGD7N45SSD-13 datasheet, DMGD7N45SSD-13 pinout, DMGD7N45SSD-13 application, or DMGD7N45SSD-13 equivalent, key selection criteria include its 450V breakdown rating, low 256pF input capacitance, dual-channel SO-8 layout, AEC-Q101 qualification, and thermal resistance of 78°C/W (steady-state) - all critical for automotive-grade power management design.
Technical Context
This device implements two discrete N-channel MOSFETs sharing a common SO-8 thermally enhanced plastic package, each with independently controllable gate terminals. Its 450V VBR(DSS) supports off-line and high-bus applications, while the 3Ω typical RDS(on) at 10V gate drive enables efficient operation in low-duty-cycle switching topologies.
The integrated body diodes exhibit 1.2V max forward voltage at 0.7A and 103ns reverse recovery time, supporting synchronous rectification and freewheeling functions. Gate charge parameters - Qg = 6.9nC, Qgd = 3.4nC - indicate moderate drive strength requirements compatible with standard gate drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS Rating | 450V - supports direct connection to 380V DC bus or 277V AC line-derived supplies without external snubbing |
| RDS(on) Max | 4Ω @ VGS = 10V - delivers ≤1.4W conduction loss at 0.6A, enabling thermally constrained PCB layouts |
| ID Continuous | 0.85A @ TA = +25°C - suitable for low-power auxiliary rails and LED string current control |
| Ciss | 256pF - reduces gate drive power demand and eases EMI filtering in 100–500kHz switching designs |
| tr/tf | 6.4ns/56.6ns - fast turn-on with controlled fall time minimizes cross-conduction loss in half-bridge configurations |
| TJ Range | −55°C to +150°C - validated for under-hood automotive environments and industrial temperature cycling |
| AEC-Q101 | Qualified - meets stress test requirements for automotive power semiconductors including HTGB, HTRB, and UHAST |
Pinout & Package
Package: SO-8 (Surface-Mount, 8-pin, molded plastic, UL 94V-0 rated, 0.074g mass). Pin 1 marked by notch or bevel; pins 1–4 on left side, 5–8 on right side when viewed top-down with marking facing up.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D1 | Drain of Channel 1 | Main high-side current path for first MOSFET; electrically isolated from D2; connects to HV rail |
| S1 | Source of Channel 1 | Return node for Channel 1; tied to gate driver reference or current-sense resistor |
| G1 | Gate of Channel 1 | Control input for Channel 1; requires ≥3.5V threshold; driven by dedicated gate driver |
| S2 | Source of Channel 2 | Return node for Channel 2; may be tied to S1 or kept independent for isolated switching |
| G2 | Gate of Channel 2 | Independent control input for second MOSFET; no internal coupling to G1 |
| D2 | Drain of Channel 2 | Main high-side current path for second MOSFET; fully isolated from D1 |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent N-channel topology | Enables space-efficient implementation of half-bridge, dual-output DC-DC, or redundant switching paths in one SO-8 footprint |
| 450V BVDSS with 1.4A avalanche rating | Withstands repetitive inductive switching surges up to 2.2A (10µs pulse), reducing need for external clamping |
| Low 1µA IDSS leakage at 450V | Minimizes standby power loss in always-on systems such as automotive body controllers and smart lighting |
| Lead-free, halogen-free, AEC-Q101 qualified | Meets automotive PPAP requirements and RoHS 2 compliance without derating or process exceptions |
| Thermally optimized SO-8 layout | 13.3°C/W RΘJC enables direct heatsinking via exposed pad (per AP02002 outline) for >1W dissipation |
Applications
| Motor Control | Backlighting |
|---|---|
Use Scenario: Driving small brushed DC motors in automotive HVAC actuators and seat positioners. IC Role / Device Role / Timing Role: Dual-channel high-side switch controlling motor direction and braking via complementary PWM signals. Use Value: 450V rating accommodates battery transients up to 400V; dual integration eliminates discrete pairing and matching errors. | Use Scenario: Constant-current regulation for CCFL or LED backlight strings in automotive instrument clusters. IC Role / Device Role / Timing Role: High-voltage current sink switch operating in linear or PWM mode to set backlight intensity. Use Value: Low RDS(on) and tight VGS(th) tolerance (3.5–4.5V) ensure stable current across temperature and unit-to-unit variation. |
| DC-DC Converters | Power Management |
Use Scenario: Primary-side switch in isolated flyback converters powering infotainment subsystems. IC Role / Device Role / Timing Role: High-voltage switching element handling 380V DC input with 6.9nC total gate charge for <500kHz operation. Use Value: Coss = 22.5pF and Crss = 0.83pF reduce capacitive losses and improve light-load efficiency. | Use Scenario: Load switching and power sequencing in multi-rail automotive ECUs. IC Role / Device Role / Timing Role: Dual independent load switches enabling controlled power-up/down of sub-systems (e.g., CAN transceiver + sensor interface). Use Value: Independent gate control allows staggered turn-on to limit inrush; AEC-Q101 ensures reliability over 15-year vehicle life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-voltage N-channel MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN3052LSD-13 | 30V VDS, 32mΩ RDS(on), same SO-8 dual-N package | Designed for low-voltage logic-level switching only; unsuitable for >60V bus applications | Select only for 5–24V systems where high-voltage capability is unnecessary |
| IPD7N45S3-13 | 450V VDS, 3.5Ω RDS(on), TO-252 package (single-channel) | Single-channel, larger footprint, higher thermal resistance (RΘJA = 100°C/W) | Choose when board space permits discrete placement and higher power (>1.5W) dissipation is required |
Compared with DMN3052LSD-13 and IPD7N45S3-13, DMGD7N45SSD-13 uniquely combines 450V rating, dual-channel integration, and AEC-Q101 qualification in SO-8 - enabling compact, automotive-compliant high-voltage switching not achievable with either alternative.
Availability
DMGD7N45SSD-13 is available at Aetrix Electronics and suitable for motor control, backlighting, DC-DC converters, and automotive power management applications requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for DMGD7N45SSD-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 consumer markets.
The DMGD7N45SSD belongs to Diodes' high-voltage MOSFET product line, engineered specifically for space-constrained, thermally demanding automotive and industrial power conversion where dual-channel integration and AEC-Q101 validation are mandatory.
FAQ
What is the maximum safe operating voltage for DMGD7N45SSD-13?
The absolute maximum drain-source voltage is 450V DC, verified per JEDEC JESD22-A114 test conditions. Operation above this rating risks irreversible avalanche failure. Derating to 405V (90% of rating) is recommended for designs subject to line transients or inductive kickback, especially in automotive 24V systems with load-dump events.
Can both channels be used in parallel to increase current capacity?
No - the two channels are electrically isolated but not matched for parallel operation. RDS(on) tolerance (±25%) and thermal coupling differences cause current imbalance. Parallel use violates SO-8 thermal limits and voids AEC-Q101 qualification. For higher current, select a single-channel part with appropriate RDS(on) and package thermal performance.
Is the SO-8 package thermally enhanced with an exposed pad?
No - the standard SO-8 package for DMGD7N45SSD-13 has no exposed thermal pad. Thermal performance relies on copper pour under pins 1–4 and 5–8 per AP02001 pad layout. For higher power, consider mounting on 2oz FR-4 with 1-inch² copper area, achieving RΘJA = 78°C/W (steady-state) as specified.
Does DMGD7N45SSD-13 support 3.3V logic-level gate drive?
No - the gate threshold voltage range is 3.5V to 4.5V, and RDS(on) is specified only at VGS = 10V. At 3.3V, the device remains in weak inversion with RDS(on) > 20Ω and high conduction loss. A gate driver capable of 10V output (e.g., TC4427) is required for full enhancement and low-loss operation.
DMGD7N45SSD-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:
- 2 N-Channel (Dual)
- FET Feature:
- -
- Drain to Source Voltage (Vdss):
- 450V
- Current - Continuous Drain (Id) @ 25°C:
- 500mA (Ta)
- Rds On (Max) @ Id, Vgs:
- 4Ohm @ 400mA, 10V
- Vgs(th) (Max) @ Id:
- 4.5V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 6.9nC @ 10V
- Input Capacitance (Ciss) (Max) @ Vds:
- 256pF @ 25V
- Power - Max:
- 1.64W
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
DMGD7N45SSD-13 FAQ
1.How can I place an order for DMGD7N45SSD-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMGD7N45SSD-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 DMGD7N45SSD-13 reliable?
The price and inventory of DMGD7N45SSD-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMGD7N45SSD-13 is usually 5 days.
3.What payment methods are accepted for DMGD7N45SSD-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMGD7N45SSD-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMGD7N45SSD-13?
DMGD7N45SSD-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMGD7N45SSD-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 DMGD7N45SSD-13?
For technical support, including DMGD7N45SSD-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMGD7N45SSD-13 requirements.
6.How does Aetrix verify that DMGD7N45SSD-13 is sourced from the original manufacturer or authorized distributors?
All DMGD7N45SSD-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 DMGD7N45SSD-13 meets industry standards.
7.What is the process for return or replacement of DMGD7N45SSD-13?
All DMGD7N45SSD-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMGD7N45SSD-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 DMGD7N45SSD-13 part is unused and in its original packaging.
Return procedure for DMGD7N45SSD-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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