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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

Alpha & Omega Semiconductor Inc. AON6224

Name: AON6224
Brand: Alpha & Omega Semiconductor Inc.
SKU: AON6224
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AON6224

Manufacturer:: Alpha & Omega Semiconductor Inc.

Category:: FETs, MOSFETs

Package:: 8-PowerSMD, Flat Leads

Datasheet:: AON6224.pdf

Description:: MOSFET N-CHANNEL 100V 34A 8DFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AON6224 from Alpha & Omega Semiconductor is a 100V, 34A N-channel Trench Power MV MOSFET in DFN5x6 package, featuring R_DS(ON) < 12 mΩ at V_GS = 10 V and < 15.5 mΩ at V_GS = 4.5 V, with low gate charge (Q_g = 33–50 nC) and optimized for high-efficiency synchronous rectification in DC/DC converters.

For engineers reviewing the AON6224 datasheet, pinout, applications, or equivalent options, key selection criteria include its 100V V_DS, 34A continuous drain current, 1.4–2.4V gate threshold voltage, 100% UIS-tested ruggedness, and DFN5x6 thermal performance with R_θJC = 2.2°C/W.

Technical Context

The AON6224 employs Trench Power MV MOSFET technology to achieve low conduction loss and fast switching, supported by low output capacitance (C_oss = 170 pF) and minimal reverse transfer capacitance (C_rss = 11 pF). Its gate resistance of 0.2–0.9 Ω enables precise drive control in hard-switched topologies.

Designed for unclamped inductive switching (100% UIS tested), it sustains avalanche energy up to 20 mJ (L = 0.1 mH) and supports body-diode operation with V_SD = 0.71–1.0 V and Q_rr = 128 nC at I_F = 20 A, di/dt = 500 A/µs - critical for motor drive freewheeling and LLC resonant converter secondary-side rectification.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	100 V - maximum blocking voltage suitable for 48 V input bus and 12 V output DC/DC stages
I_D (V_GS = 10 V)	34 A - continuous drain current rating at T_C = 25°C, package-limited per datasheet note G
R_DS(ON) (V_GS = 10 V)	< 12 mΩ - enables <1.2 W conduction loss at 30 A, reducing heat sink requirements
R_DS(ON) (V_GS = 4.5 V)	< 15.5 mΩ - ensures robust turn-on under logic-level gate drive in 5 V control systems
Q_g (10 V)	33–50 nC - determines gate driver power and switching loss in 100–500 kHz applications
R_θJC	2.2 °C/W - junction-to-case thermal resistance enabling >22 W steady-state dissipation at T_C = 100°C
E_AS	20 mJ - single-pulse avalanche energy rating confirming ruggedness in inductive load transients

Pinout & Package

Package: DFN5x6 (5 mm × 6 mm, 1.0 mm height, exposed drain pad on bottom surface).

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4, 7, 8	Drain (D)	Internally connected to exposed copper pad - primary current path and thermal conduction path to PCB
5	Gate (G)	Control terminal requiring <50 nC total charge for full enhancement; sensitive to ESD
6	Source (S)	Reference node for gate drive; connects to power ground plane and carries return current

Key Features

Feature	Design Value
100% UIS tested	Guarantees avalanche ruggedness without derating in motor drive or relay snubber circuits
Low R_DS(ON) at 4.5 V	Enables use with standard 5 V microcontroller GPIO or PWM controllers without level-shifting
Optimized for fast switching	Tr = 3 ns, tf = 4 ns, t_D(off) = 25 ns - reduces switching losses in >300 kHz SMPS designs
100% R_g tested	Ensures consistent gate drive timing and predictable Miller plateau behavior across production lots
Exposed drain thermal pad	Provides direct thermal path to PCB copper, supporting >20 W power handling with 2 oz. FR-4

Applications

Server VRM Synchronous Rectifier	Industrial BLDC Motor Inverter
Use Scenario: High-current, high-frequency buck converter in 12 V server VRM delivering up to 120 A to CPU/GPU cores. IC Role / Device Role / Timing Role: Low-side synchronous rectifier replacing Schottky diode to reduce conduction loss and improve efficiency above 90%. Use Value: R_DS(ON) < 12 mΩ at 10 V gate drive cuts rectifier loss by >60% vs. 40 V Schottky, directly improving thermal margin at 300 kHz switching.	Use Scenario: Half-bridge leg in 24–48 V industrial BLDC motor drive operating at 20–40 kHz PWM frequency. IC Role / Device Role / Timing Role: High-side or low-side power switch controlling phase current with fast turn-off to minimize shoot-through risk. Use Value: 25 ns t_D(off) and 4 ns fall time enable tight dead-time control, reducing cross-conduction losses while maintaining torque linearity.
AC/DC PFC Output Rectifier	Telecom DC/DC Intermediate Bus Converter
Use Scenario: Secondary-side synchronous rectifier in 3.3–12 V output stage of active clamp forward or LLC resonant AC/DC adapter. IC Role / Device Role / Timing Role: Body-diode commutation and controlled turn-on during zero-voltage switching transitions. Use Value: Q_rr = 128 nC and V_SD = 0.71 V minimize reverse recovery loss and forward conduction drop, increasing light-load efficiency by 1.2–1.8%.	Use Scenario: Point-of-load (POL) buck converter in telecom base station board converting –48 V or +54 V intermediate bus to 3.3 V/5 V for FPGA or ASIC rails. IC Role / Device Role / Timing Role: Primary power switch handling 20–30 A continuous current with high duty-cycle operation. Use Value: R_θJC = 2.2°C/W allows stable operation at T_C = 100°C with no external heatsink, simplifying board layout and cost.

Server VRM Synchronous Rectifier

Industrial BLDC Motor Inverter

Use Scenario: High-current, high-frequency buck converter in 12 V server VRM delivering up to 120 A to CPU/GPU cores.

IC Role / Device Role / Timing Role: Low-side synchronous rectifier replacing Schottky diode to reduce conduction loss and improve efficiency above 90%.

Use Value: R_DS(ON) < 12 mΩ at 10 V gate drive cuts rectifier loss by >60% vs. 40 V Schottky, directly improving thermal margin at 300 kHz switching.

Use Scenario: Half-bridge leg in 24–48 V industrial BLDC motor drive operating at 20–40 kHz PWM frequency.

IC Role / Device Role / Timing Role: High-side or low-side power switch controlling phase current with fast turn-off to minimize shoot-through risk.

Use Value: 25 ns t_D(off) and 4 ns fall time enable tight dead-time control, reducing cross-conduction losses while maintaining torque linearity.

AC/DC PFC Output Rectifier

Telecom DC/DC Intermediate Bus Converter

Use Scenario: Secondary-side synchronous rectifier in 3.3–12 V output stage of active clamp forward or LLC resonant AC/DC adapter.

IC Role / Device Role / Timing Role: Body-diode commutation and controlled turn-on during zero-voltage switching transitions.

Use Value: Q_rr = 128 nC and V_SD = 0.71 V minimize reverse recovery loss and forward conduction drop, increasing light-load efficiency by 1.2–1.8%.

Use Scenario: Point-of-load (POL) buck converter in telecom base station board converting –48 V or +54 V intermediate bus to 3.3 V/5 V for FPGA or ASIC rails.

IC Role / Device Role / Timing Role: Primary power switch handling 20–30 A continuous current with high duty-cycle operation.

Use Value: R_θJC = 2.2°C/W allows stable operation at T_C = 100°C with no external heatsink, simplifying board layout and cost.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRF6642	V_DS = 100 V, R_DS(ON) = 13.5 mΩ @ 10 V, Q_g = 42 nC, PQFN 5x6 package	Higher R_DS(ON) and slightly higher Q_g; same footprint but requires re-optimization of gate drive strength	Preferred where legacy IR design reuse is prioritized over lowest conduction loss
SiR626DP	V_DS = 100 V, R_DS(ON) = 11.5 mΩ @ 10 V, Q_g = 48 nC, PowerPAK® SO-8 package	Different SO-8 footprint; higher R_θJA (55°C/W vs. 50°C/W) limits power density in compact layouts	Selected when SO-8 compatibility or dual-source availability outweighs DFN thermal advantage

Compared with IRF6642 and SiR626DP, the AON6224 delivers lower R_DS(ON) and superior thermal performance in DFN5x6, making it optimal for space-constrained, high-power-density DC/DC converters where junction temperature must stay below 135°C under continuous 30 A load.

Availability

AON6224 is available at Aetrix Electronics and suitable for server VRMs, industrial BLDC motor drives, AC/DC PFC rectifiers, and telecom intermediate bus converters requiring stable component supply and qualified consumer-grade reliability.

Supply support for AON6224 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, and industrial markets.

The AON6224 belongs to AOS's Trench Power MV MOSFET product line, engineered specifically for high-efficiency, high-current synchronous rectification and motor drive switching in 48–100 V systems.

FAQ

What is the maximum continuous drain current rating for AON6224?

The AON6224 has a continuous drain current rating of 34 A at T_C = 25°C, limited by package thermal capability (note G in datasheet). At T_C = 100°C, the derated current is 13 A per Figure 13. This rating assumes proper PCB copper area and thermal via design per the 1 in² FR-4 reference board condition.

Does AON6224 support logic-level gate drive?

Yes, the AON6224 supports logic-level gate drive: its R_DS(ON) is specified at < 15.5 mΩ with V_GS = 4.5 V, and gate threshold voltage ranges from 1.4 V to 2.4 V. It is fully compatible with 5 V microcontrollers and PWM controllers without requiring gate drivers or level shifters.

Is AON6224 suitable for avalanche-prone circuits like motor drives?

Yes, the AON6224 is 100% UIS tested per JEDEC JESD24-1, with rated single-pulse avalanche energy of 20 mJ (L = 0.1 mH). This makes it suitable for inductive load switching in BLDC motor inverters and relay drivers where unclamped inductive spikes occur.

What is the thermal resistance from junction to case for AON6224?

The AON6224 has a junction-to-case thermal resistance (R_θJC) of 2.2°C/W, measured with the device mounted to a large heatsink. This value enables >22 W steady-state power dissipation at T_C = 100°C, assuming adequate PCB copper and thermal vias beneath the exposed drain pad.

How does the body diode performance of AON6224 compare to discrete Schottky diodes?

The AON6224 body diode has V_SD = 0.71–1.0 V and Q_rr = 128 nC at I_F = 20 A, di/dt = 500 A/µs. While forward voltage is higher than Schottky diodes, its integrated nature eliminates layout parasitics and enables synchronous rectification control - yielding net system efficiency gains in high-frequency DC/DC converters where AON6224 replaces both MOSFET and diode.

AON6224 Specifications

Product attributes: Attribute value

Manufacturer:: Alpha & Omega Semiconductor Inc.

Series:: -

Package/Case:: 8-PowerSMD, Flat Leads

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 100 V

Current - Continuous Drain (Id) @ 25°C:: 34A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4.5V, 10V

Rds On (Max) @ Id, Vgs:: 12mOhm @ 20A, 10V

Vgs(th) (Max) @ Id:: 2.4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 50 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 2420 pF @ 50 V

FET Feature:: -

Power Dissipation (Max):: 56.5W (Tc)

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-DFN (5x6)

AON6224 FAQ

1.How can I place an order for AON6224 through Aetrix?

Please submit a Request for Quotation (RFQ) for AON6224 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 AON6224 reliable?

The price and inventory of AON6224 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AON6224 is usually 5 days.

3.What payment methods are accepted for AON6224?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AON6224 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AON6224?

AON6224 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AON6224 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 AON6224?

For technical support, including AON6224 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AON6224 requirements.

6.How does Aetrix verify that AON6224 is sourced from the original manufacturer or authorized distributors?

All AON6224 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 AON6224 meets industry standards.

7.What is the process for return or replacement of AON6224?

All AON6224 units undergo pre-shipment inspection (PSI). If there is an issue with AON6224, 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 AON6224 part is unused and in its original packaging.

Return procedure for AON6224:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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