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

Alpha & Omega Semiconductor Inc. AON6752

Name: AON6752
Brand: Alpha & Omega Semiconductor Inc.
SKU: AON6752
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AON6752

Manufacturer:: Alpha & Omega Semiconductor Inc.

Category:: FETs, MOSFETs

Package:: 8-PowerSMD, Flat Leads

Datasheet:: AON6752.pdf

Description:: MOSFET N-CH 30V 54A/85A 8DFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AON6752 from Alpha & Omega Semiconductor is a 30V N-Channel Trench Power AlphaMOS LV MOSFET in DFN5x6 package, rated for 85A continuous drain current at V_GS=10V, with R_DS(ON) < 1.7mΩ (10V) and < 2.5mΩ (4.5V), featuring integrated Schottky diode (SRFET™) and low gate charge (Q_g=72nC @10V) for high-efficiency DC/DC conversion in server POL applications.

For engineers reviewing the AON6752 datasheet, pinout, applications, or equivalent options, key selection criteria include its 100% UIS-tested ruggedness, 1.5°C/W junction-to-case thermal resistance, integrated body diode with 23ns reverse recovery time, and suitability for high-current synchronous rectification in isolated telecom DC/DC converters.

Technical Context

The AON6752 employs AlphaMOS LV trench technology to achieve ultra-low on-resistance at both 10V and 4.5V gate drive, enabling efficient operation in 5V and 12V gate-drive systems. Its integrated Schottky-replacement body diode (V_SD=0.6V @1A) supports soft-recovery behavior with Q_rr=43.8nC and t_rr=23ns under IF=20A/dI/dt=500A/µs conditions.

Thermal design is supported by a 1.5°C/W R_θJC and 55°C/W R_θJA (1in² FR-4, 2oz Cu), allowing up to 340W pulsed power dissipation at T_C=25°C. The device is fully characterized for unclamped inductive switching (UIS) and gate leakage (I_GSS≤100nA), meeting RoHS and halogen-free requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	30V maximum - supports 24V input rails with margin for transient spikes in telecom and server power supplies
I_D (V_GS=10V)	85A continuous - enables single-device implementation in high-current POL stages up to ~100A with derating
R_DS(ON) (V_GS=4.5V)	< 2.5mΩ - ensures low conduction loss in 5V-gate-driven synchronous buck converters
Q_g (10V)	72nC typical - reduces gate drive power and enables higher switching frequencies without excessive driver loss
t_rr	23ns - minimizes body-diode switching loss and EMI in hard-switched and resonant topologies
R_θJC	1.5°C/W - allows direct heatsink mounting for thermal management in compact, high-power-density modules
E_AS	76mJ - provides robustness against inductive energy transients in motor drives and DC/DC converter startup

Pinout & Package

Package: DFN5x6 (5.0mm × 6.0mm, 1.0mm height), exposed drain pad on bottom side for thermal and electrical connection.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4, 5, 6, 7, 8 (Drain Pad)	Drain (D)	Entire bottom-side copper pad connects to drain - must be soldered to large PCB copper area or heatsink for thermal performance and current handling
Pin 1	Gate (G)	Standard gate input - requires low-impedance drive path due to 1.0Ω typical gate resistance
Pin 2	Source (S)	Source reference node - ties to power ground plane; critical for gate loop integrity and noise immunity

Key Features

Feature	Design Value
Integrated Schottky Diode (SRFET™)	Enables synchronous rectification without external diode - reduces BOM count and improves efficiency in flyback and LLC converters
100% UIS Tested	Guarantees ruggedness against unclamped inductive energy during fault conditions without derating
Low R_DS(ON) at 4.5V	Supports logic-level gate drive from microcontrollers or PWM controllers with 5V outputs, eliminating level-shifting circuitry
100% R_g Tested	Ensures consistent gate charge characteristics across production lots - critical for predictable switching timing and EMI control
RoHS & Halogen-Free	Meets environmental compliance for global industrial and computing equipment without compromising thermal or electrical performance

Applications

Server Point-of-Load (POL)	Telecom Isolated DC/DC
Use Scenario: High-current, high-efficiency step-down conversion delivering 0.8–3.3V at >60A from 12V intermediate bus in rack-mounted servers. IC Role / Device Role: Synchronous rectifier MOSFET in multiphase buck converter output stage. Use Value: Sub-2.5mΩ R_DS(ON) at 4.5V gate drive minimizes conduction loss; low Q_g enables 500kHz+ switching without excessive gate loss.	Use Scenario: Secondary-side synchronous rectification in 48V-input isolated forward or LLC converters for telecom base stations. IC Role / Device Role: Primary-side high-side switch and secondary-side rectifier in dual-active-bridge or asymmetrical half-bridge topologies. Use Value: Integrated SRFET™ diode eliminates need for discrete Schottky, reducing layout area and improving light-load efficiency over 20% load range.
Industrial Motor Drive	High-Density Computing PSU
Use Scenario: Half-bridge leg in 24V BLDC motor gate driver modules requiring fast, rugged switching with low shoot-through risk. IC Role / Device Role: Low-side switch with fast body-diode recovery for regenerative braking and PWM commutation. Use Value: 23ns t_rr and 43.8nC Q_rr suppress voltage overshoot during freewheeling, reducing snubber losses and EMI filter size.	Use Scenario: Input-stage OR-ing FET or hot-swap controller in redundant 12V/48V server power supply units. IC Role / Device Role: Load switch protecting downstream circuits during insertion or fault events. Use Value: 85A rating and 100% UIS qualification ensure reliable operation during inrush and short-circuit events without latch-up or failure.

Server Point-of-Load (POL)

Telecom Isolated DC/DC

Use Scenario: High-current, high-efficiency step-down conversion delivering 0.8–3.3V at >60A from 12V intermediate bus in rack-mounted servers.

IC Role / Device Role: Synchronous rectifier MOSFET in multiphase buck converter output stage.

Use Value: Sub-2.5mΩ R_DS(ON) at 4.5V gate drive minimizes conduction loss; low Q_g enables 500kHz+ switching without excessive gate loss.

Use Scenario: Secondary-side synchronous rectification in 48V-input isolated forward or LLC converters for telecom base stations.

IC Role / Device Role: Primary-side high-side switch and secondary-side rectifier in dual-active-bridge or asymmetrical half-bridge topologies.

Use Value: Integrated SRFET™ diode eliminates need for discrete Schottky, reducing layout area and improving light-load efficiency over 20% load range.

Industrial Motor Drive

High-Density Computing PSU

Use Scenario: Half-bridge leg in 24V BLDC motor gate driver modules requiring fast, rugged switching with low shoot-through risk.

IC Role / Device Role: Low-side switch with fast body-diode recovery for regenerative braking and PWM commutation.

Use Value: 23ns t_rr and 43.8nC Q_rr suppress voltage overshoot during freewheeling, reducing snubber losses and EMI filter size.

Use Scenario: Input-stage OR-ing FET or hot-swap controller in redundant 12V/48V server power supply units.

IC Role / Device Role: Load switch protecting downstream circuits during insertion or fault events.

Use Value: 85A rating and 100% UIS qualification ensure reliable operation during inrush and short-circuit events without latch-up or failure.

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	R_DS(ON) = 2.0mΩ @10V; Q_g = 52nC; no integrated Schottky diode; PQFN 5x6 package	Lacks SRFET™ functionality - requires external diode for synchronous rectification; lower gate charge reduces driver loss	Prefer when gate drive efficiency is prioritized over body-diode integration and layout simplicity
SiR626DP	R_DS(ON) = 1.9mΩ @10V; Q_g = 62nC; trench MOSFET with standard body diode; PowerPAK® SO-8L	Different package (SO-8L vs DFN5x6); higher R_DS(ON) at 4.5V (~3.5mΩ); no UIS testing specified	Select when legacy SO-8L footprint compatibility is required and 4.5V drive margin is less critical

Compared with IRF6642 and SiR626DP, the AON6752 delivers superior 4.5V on-resistance and integrated SRFET™ functionality for reduced component count, while maintaining competitive gate charge and proven UIS ruggedness - making it optimal for space-constrained, high-efficiency POL and telecom DC/DC designs where body-diode performance is critical.

Availability

AON6752 is available at Aetrix Electronics and suitable for server point-of-load (POL) converters, telecom isolated DC/DC modules, and industrial motor drive half-bridges requiring stable component supply and qualified high-current MOSFETs.

Supply support for AON6752 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 AlphaMOS LV product line targets high-current, low-voltage power conversion with emphasis on R_DS(ON), gate charge, and thermal performance - specifically engineered for next-generation server, telecom, and automotive power systems.

FAQ

What is the maximum continuous drain current rating for the AON6752?

The AON6752 is rated for 85A continuous drain current at T_C=25°C with V_GS=10V, and 54A at T_C=100°C. This rating is package-limited and assumes proper PCB copper area for thermal conduction. Derating curves in Figure 13 confirm 66A at T_C=70°C, supporting high-current POL applications when thermally managed.

Does the AON6752 have an integrated Schottky diode, and how does it perform?

Yes, the AON6752 features an integrated Schottky-replacement body diode branded SRFET™, with V_SD=0.6V at I_S=1A and T_J=25°C. It exhibits soft recovery behavior: t_rr=23ns and Q_rr=43.8nC under IF=20A/dI/dt=500A/µs, significantly reducing switching loss and voltage overshoot compared to standard MOSFET body diodes.

What is the gate threshold voltage range for the AON6752, and how does it affect drive requirements?

The AON6752 has a gate threshold voltage V_GS(th) of 1.2–2.2V at T_J=25°C, and 1.4–2.5V at T_J=125°C. This low threshold enables reliable turn-on with 3.3V or 5V logic-level drivers, but full enhancement requires ≥4.5V for sub-2.5mΩ R_DS(ON). Gate drive design must account for temperature drift to avoid partial turn-on in high-temp environments.

Is the AON6752 suitable for unclamped inductive switching (UIS) applications?

Yes, the AON6752 is 100% UIS tested per JEDEC JESD22-A106, with E_AS=76mJ at T_J=25°C. This qualifies it for hard-switched topologies like flyback and forward converters where inductive energy must be safely absorbed during switching transitions without external clamping.

What thermal resistance values are specified for the AON6752, and how do they impact heatsinking?

The AON6752 specifies R_θJC=1.5°C/W (junction-to-case) and R_θJA=55°C/W (junction-to-ambient, 1in² FR-4, 2oz Cu). The low R_θJC indicates efficient heat transfer from die to case - requiring direct thermal interface to a heatsink or large copper pour. R_θJA guides board-level thermal design when no external heatsink is used.

AON6752 Specifications

Product attributes: Attribute value

Manufacturer:: Alpha & Omega Semiconductor Inc.

Series:: AlphaMOS

Package/Case:: 8-PowerSMD, Flat Leads

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 54A (Ta), 85A (Tc)

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

Rds On (Max) @ Id, Vgs:: 1.7mOhm @ 20A, 10V

Vgs(th) (Max) @ Id:: 2.2V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 72 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 3509 pF @ 15 V

FET Feature:: Schottky Diode (Body)

Power Dissipation (Max):: 7.4W (Ta), 83W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

AON6752 FAQ

1.How can I place an order for AON6752 through Aetrix?

Please submit a Request for Quotation (RFQ) for AON6752 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 AON6752 reliable?

The price and inventory of AON6752 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AON6752 is usually 5 days.

3.What payment methods are accepted for AON6752?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AON6752 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AON6752?

AON6752 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AON6752 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 AON6752?

For technical support, including AON6752 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AON6752 requirements.

6.How does Aetrix verify that AON6752 is sourced from the original manufacturer or authorized distributors?

All AON6752 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 AON6752 meets industry standards.

7.What is the process for return or replacement of AON6752?

All AON6752 units undergo pre-shipment inspection (PSI). If there is an issue with AON6752, 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 AON6752 part is unused and in its original packaging.

Return procedure for AON6752:

1.Submit a request within 90 days.

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

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