Alpha & Omega Semiconductor Inc. AOD413

Overview

AOD413 from Alpha & Omega Semiconductor is a P-channel enhancement-mode MOSFET in TO-252 (DPAK) package, rated for -40 V drain-source voltage, -24 A continuous drain current at V_GS = -10 V, and R_DS(ON) < 45 mΩ under same conditions. It delivers low gate charge (14.1 nC at 10 V), robust avalanche capability (E_AS = 50 mJ), and is optimized for high-current load switching in DC-DC converters and power management circuits.

For engineers reviewing the AOD413 datasheet, pinout, applications, or equivalent options, key selection criteria include its -40 V V_DS, -24 A I_D rating at 100°C case temperature, 45 mΩ R_DS(ON) at -10 V, 100% UIS testing, and DPAK thermal performance with R_θJC = 3 °C/W - all critical for high-reliability industrial and automotive power stages.

Technical Context

The AOD413 employs trench-gate MOSFET architecture to achieve low on-resistance and fast switching. Its body diode exhibits V_SD = -0.75 V at -12 A and t_rr = 23.2 ns with Q_rr = 18.2 nC, enabling efficient synchronous rectification and reverse recovery control in buck converters.

Thermal design leverages the DPAK package's 3 °C/W junction-to-case resistance and 50 °C/W junction-to-ambient (on 1-in² FR-4 board). Absolute maximum ratings include T_J = -55 to 175 °C and repetitive avalanche energy E_AR = 25 mJ at L = 0.1 mH.

Key Specifications

Pinout & Package

Package: TO-252 (DPAK), surface-mount, exposed drain pad for thermal and electrical connection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IRF9530NPbF and Si2305DS, the AOD413 uniquely balances -40 V rating, -24 A current, 45 mΩ on-resistance, and DPAK thermal performance - making it the optimal choice for industrial 12–24 V high-side switches requiring both efficiency and ruggedness.

Availability

AOD413 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and DC-DC synchronous buck converters requiring stable component supply and long-term production continuity.

Supply support for AOD413 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 AOD413 belongs to AOS's "AlphaMOS" trench-MOSFET product line, engineered specifically for high-current, logic-level-driven power switching in compact surface-mount form factors.

FAQ

What is the maximum continuous drain current for the AOD413 at 100°C case temperature?

The AOD413 supports -18 A continuous drain current at T_C = 100°C, as specified in its Absolute Maximum Ratings table. This rating reflects bond-wire current limits and thermal equilibrium under forced convection or heatsinked conditions. The AOD413 maintains this current capability without additional derating when mounted on a PCB with adequate copper area and airflow, making it suitable for sustained high-load operation in power supplies and motor controllers.

Does the AOD413 have a guaranteed avalanche rating, and how is it tested?

Yes, the AOD413 is 100% tested for unclamped inductive switching (UIS) with a guaranteed single-pulse avalanche energy (E_AS) of 50 mJ. Testing follows JEDEC standard JESD24-11 using a standardized circuit with L = 0.3 mH, V_DD = 80% BVDSS, and pulse width calibrated to reach T_J(max) = 175°C. The AOD413's trench structure and layout ensure consistent avalanche behavior across production lots, supporting reliable fault handling in motor and solenoid drive applications.

Can the AOD413 be driven directly by a 3.3 V microcontroller GPIO?

No - the AOD413 requires V_GS ≤ -4.5 V for full enhancement, and its gate threshold (V_GS(th)) ranges from -1.8 V to -3.0 V. At 3.3 V logic, |V_GS| = 3.3 V is insufficient to fully turn on the device, resulting in R_DS(ON) > 69 mΩ and excessive conduction loss. The AOD413 must be driven with a dedicated level-shifting gate driver or negative-bias supply to achieve -4.5 V or -10 V gate drive, ensuring optimal performance in designs such as automotive load switches and industrial power rails.

What is the thermal resistance from junction to ambient (R_θJA) for the AOD413 under standard test conditions?

The AOD413 has a measured R_θJA of 50 °C/W when mounted on a 1 in² FR-4 board with 2 oz. copper in still air at T_A = 25°C. This value assumes no external heatsink and is used to calculate worst-case junction temperature rise under steady-state power dissipation. For example, at 2 W dissipation, ΔT_J-A = 100°C - meaning T_J reaches 125°C. The AOD413's R_θJC = 3 °C/W enables significantly lower thermal rise when heatsinked, confirming its suitability for thermally demanding applications.

Is the AOD413 RoHS compliant and halogen-free, and what does that mean for manufacturing?

Yes, the AOD413 is RoHS compliant and halogen-free per manufacturer documentation (data code ≥8X11, September 2008). Halogen-free status means bromine and chlorine content is below 900 ppm each, and total halogens ≤1500 ppm - satisfying IPC-1752A and IEC 61249-2-21 requirements. This eliminates corrosive gas generation during soldering and end-of-life incineration, supporting lead-free reflow profiles and environmentally regulated production for industrial and automotive customers.