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Alpha & Omega Semiconductor Inc. AON7400AL
- Part No.:
- AON7400AL
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- FETs, MOSFETs
- Package:
- 8-SMD, Flat Leads
- Datasheet:
-
AON7400AL.pdf
- Description:
- MOSFET N-CH 30V 15A/40A 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:8,656
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Product details
Overview
AON7400AL from Alpha & Omega Semiconductor is a 30V, 40A N-channel Trench MOSFET in DFN 3×3 EP package with RDS(ON) < 7.5 mΩ at VGS = 10 V and < 10.5 mΩ at VGS = 4.5 V, optimized for high-side switching in DC-DC converters and synchronous rectification in SMPS.
For engineers reviewing the AON7400AL datasheet, pinout, applications, or equivalent options, key selection criteria include its low gate charge (Qg = 20 nC @ 10 V), 100% UIS-tested ruggedness, thermal resistance RθJC = 5 °C/W, and DFN package suitability for high-density power stages.
Technical Context
The AON7400AL uses advanced trench-gate process technology to achieve ultra-low on-resistance while maintaining fast switching performance: td(on) = 6.5 ns, tr = 2 ns, Qgd = 5 nC, and Ciss = 1150 pF at VDS = 15 V. Its body diode exhibits trr = 8.7 ns and Qrr = 13.5 nC under IF = 20 A, dI/dt = 500 A/μs conditions.
Thermally, the device features a copper-exposed pad for direct heatsinking, with RθJC = 5 °C/W enabling high continuous power dissipation (PD = 40 W at TC = 25 °C) and robust single-pulse SOA up to 100 A at VDS = 10 V for 10 ms. It is rated for junction temperatures from –55 °C to 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 30 V - Maximum drain-source blocking voltage for 12 V and 24 V input SMPS topologies. |
| ID (VGS=10 V) | 40 A - Continuous drain current rating at TC = 25 °C, supporting high-current synchronous buck stages. |
| RDS(ON) (VGS=10 V) | < 7.5 mΩ - Enables <1.2 W conduction loss at 20 A, critical for >95% efficiency in compact power supplies. |
| Qg (10 V) | 20 nC - Low total gate charge reduces drive power and enables efficient operation with standard gate drivers. |
| RθJC | 5 °C/W - Junction-to-case thermal resistance allows direct thermal coupling to PCB copper or heatsink for stable thermal management. |
| trr | 8.7 ns - Fast body-diode reverse recovery minimizes shoot-through risk and EMI in synchronous rectifier applications. |
| EAS | 12 mJ - 100% unclamped inductive switching tested, ensuring reliability under transient overcurrent conditions. |
Pinout & Package
Package: DFN 3×3 mm exposed-pad (EP) thermally enhanced surface-mount package with 8-pin configuration (pins 1–4 and 5–8 are source-connected in parallel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Source (S) | All eight terminals are internally shorted to the source node; provides low-inductance, high-current return path and thermal conduction via exposed copper pad. |
| Top center (G) | Gate (G) | Single gate terminal located centrally on top surface; requires controlled drive impedance (Rg = 0.55–1.65 Ω typical) to manage dV/dt and switching losses. |
| Bottom copper pad (D) | Drain (D) | Exposed drain pad occupies full bottom surface; serves as primary high-current drain connection and main thermal interface to PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low RDS(ON) | < 7.5 mΩ @ 10 V ensures minimal I²R loss in high-current, high-efficiency DC-DC stages. |
| 100% UIS tested | Guarantees robustness against inductive energy spikes without external snubbers in flyback or buck-boost converters. |
| Low Qgd/Qg ratio | 0.25 (5 nC / 20 nC) improves Miller immunity and enables stable hard-switching at >1 MHz frequencies. |
| Enhanced thermal performance | RθJC = 5 °C/W supports >40 W power dissipation with minimal temperature rise when mounted on 2 oz copper. |
| RoHS & Halogen-Free | Complies with environmental regulations for industrial, telecom, and consumer power systems without compromising performance. |
Applications
| Server VRM Power Stage | USB-C PD Adapter Primary Switch |
|---|---|
Use Scenario: High-frequency, high-current synchronous buck converter delivering 12 V/60 A to CPU core rails. IC Role / Device Role: High-side power switch handling peak currents up to 100 A in pulse mode. Use Value: RDS(ON) < 7.5 mΩ and Qg = 20 nC enable >96% efficiency at 500 kHz switching with minimal thermal derating. |
Use Scenario: 100 W USB-C Power Delivery adapter using active-clamp forward or half-bridge topology. IC Role / Device Role: Primary-side switching FET operating at 200–300 kHz with 30 V blocking requirement. Use Value: 100% UIS testing and 150 °C max junction temperature ensure reliability across universal AC input ranges and variable load transients. |
| Industrial Motor Drive Half-Bridge | Automotive ADAS Camera Power Module |
Use Scenario: 24 V BLDC motor gate driver stage requiring bidirectional current handling and fast freewheeling. IC Role / Device Role: Low-side switch in half-bridge configuration with integrated body diode used for PWM-controlled regeneration. Use Value: trr = 8.7 ns and Qrr = 13.5 nC minimize switching loss and voltage overshoot during commutation. |
Use Scenario: Compact 5 V/3 A point-of-load regulator for automotive camera modules with strict size and thermal constraints. IC Role / Device Role: Synchronous rectifier FET in buck converter operating from 12 V battery supply. Use Value: DFN 3×3 EP package enables <12 mm² footprint while RθJC = 5 °C/W maintains TJ < 125 °C at full load in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Infineon BSC014N04LS6 | RDS(ON) = 1.4 mΩ @ 10 V (lower), but 40 V VDS, larger PQFN 3.3×3.3 mm package, higher Qg = 32 nC. | Better conduction loss at high current, but slower switching and less suitable for >1 MHz designs. | Select for ultra-low-loss 12 V systems where thermal headroom exists and switching frequency ≤ 300 kHz. |
| Vishay SiR872DP | RDS(ON) = 7.0 mΩ @ 10 V (comparable), 30 V VDS, PowerPAK® 3.3×3.3 mm, Qg = 24 nC, RθJC = 4.5 °C/W. | Slightly better thermal resistance but higher gate charge increases driver loss in high-frequency operation. | Prefer when board-level thermal design prioritizes case-to-heatsink conduction over gate drive efficiency. |
Compared with BSC014N04LS6 and SiR872DP, the AON7400AL delivers optimal balance of low RDS(ON), moderate Qg, and industry-leading RθJC in a compact DFN, making it especially effective in space-constrained, medium-frequency SMPS where both conduction and switching losses must be minimized.
Availability
AON7400AL is available at Aetrix Electronics and suitable for server VRMs, USB-C PD adapters, industrial motor drives, and automotive camera power modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for AON7400AL 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
Alpha & Omega Semiconductor (AOS) is a fabless power semiconductor company specializing in high-performance MOSFETs, IGBTs, and power ICs for computing, consumer, industrial, and automotive markets.
The AON7400AL belongs to AOS's low-voltage TrenchFET® family, engineered specifically for high-efficiency, high-density DC-DC conversion in next-generation power supplies and portable electronics.
FAQ
What is the maximum continuous drain current for AON7400AL at 100°C case temperature?
The AON7400AL supports 15 A continuous drain current at TC = 100 °C, as specified in its Absolute Maximum Ratings table. This derating reflects thermal limits imposed by its RθJC = 5 °C/W and TJ(MAX) = 150 °C. At this condition, the device maintains safe operation in thermally constrained environments such as sealed power adapters or dense server VRMs where the AON7400AL is commonly deployed.
Does AON7400AL support 4.5 V gate drive in logic-level applications?
Yes, the AON7400AL is fully characterized at VGS = 4.5 V, with RDS(ON) < 10.5 mΩ and guaranteed turn-on at VGS(th) = 1.5–2.5 V. This makes the AON7400AL compatible with 3.3 V and 5 V logic-level gate drivers, eliminating the need for level-shifting circuitry in microcontroller-driven power stages where the AON7400AL serves as the main switching element.
Is the AON7400AL suitable for synchronous rectification in secondary-side DC-DC converters?
Yes, the AON7400AL is well-suited for synchronous rectification due to its low RDS(ON), fast body diode (trr = 8.7 ns, Qrr = 13.5 nC), and low Qgd/Qg ratio. In 5 V/3 A buck converters-such as those powering automotive ADAS cameras-the AON7400AL reduces conduction loss by >40% versus Schottky diodes while maintaining clean zero-voltage switching transitions.
What is the gate resistance specification for AON7400AL, and why does it matter?
The AON7400AL has a typical gate resistance (Rg) of 1.1 Ω, with min/max values of 0.55 Ω and 1.65 Ω. This parameter directly affects switching speed and gate driver loss: lower Rg enables faster turn-on but increases EMI risk, while higher Rg damps oscillations. Designers use this spec to optimize external gate resistor selection for the AON7400AL in applications like USB-C PD adapters where EMI compliance and efficiency trade-offs are critical.
How is thermal performance validated for AON7400AL in real-world PCB layouts?
Thermal data for the AON7400AL-including RθJA = 75 °C/W and RθJC = 5 °C/W-is measured per JEDEC standards: RθJA on 1 in² FR-4 board with 2 oz copper, and RθJC with the device mounted to a large heatsink. These values allow accurate junction temperature prediction in actual designs using the AON7400AL, whether in server VRMs with dedicated thermal vias or compact USB-C adapters relying on the DFN's exposed drain pad.
AON7400AL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Series:
- -
- Package/Case:
- 8-SMD, Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 30 V
- Current - Continuous Drain (Id) @ 25°C:
- 15A (Ta), 40A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 7.5mOhm @ 20A, 10V
- Vgs(th) (Max) @ Id:
- 2.5V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 24 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 1380 pF @ 15 V
- FET Feature:
- -
- Power Dissipation (Max):
- 3.1W (Ta), 25W (Tc)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x3)
AON7400AL FAQ
1.How can I place an order for AON7400AL through Aetrix?
Please submit a Request for Quotation (RFQ) for AON7400AL 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 AON7400AL reliable?
The price and inventory of AON7400AL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AON7400AL is usually 5 days.
3.What payment methods are accepted for AON7400AL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AON7400AL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AON7400AL?
AON7400AL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AON7400AL 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 AON7400AL?
For technical support, including AON7400AL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AON7400AL requirements.
6.How does Aetrix verify that AON7400AL is sourced from the original manufacturer or authorized distributors?
All AON7400AL 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 AON7400AL meets industry standards.
7.What is the process for return or replacement of AON7400AL?
All AON7400AL units undergo pre-shipment inspection (PSI). If there is an issue with AON7400AL, 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 AON7400AL part is unused and in its original packaging.
Return procedure for AON7400AL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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