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Product Detailed Parameters
- Description：MOSFET P-CH 30V 7A 8SO
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Bulk
- FET Type：P-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：30 V
- Current - Continuous Drain (Id) @ 25°C：7A (Ta)
- Drive Voltage (Max Rds On, Min Rds On)：4.5V, 10V
- Rds On (Max) @ Id, Vgs：34mOhm @ 7A, 10V
- Vgs(th) (Max) @ Id：2.4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs：16 nC @ 10 V
- Vgs (Max)：±20V
- Input Capacitance (Ciss) (Max) @ Vds：910 pF @ 15 V
- FET Feature：-
- Power Dissipation (Max)：3.1W (Ta)
- Operating Temperature：-55°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Package / Case：8-SOIC (0.154", 3.90mm Width)
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Overview
The AO4449 is a P-Channel Enhancement Mode Field Effect Transistor manufactured by Alpha & Omega Semiconductor Inc. It utilizes advanced trench technology to deliver low on-resistance and ultra-low gate charge. The device features a drain-source voltage of -30V, a continuous drain current of -7A at VGS=-10V, and an on-resistance of less than 34mΩ at VGS=-10V. It is housed in an SOIC-8 package with a maximum junction temperature range of -55°C to 150°C.
Feature Summary
- Advanced trench technology for excellent RDS(ON) performance
- Ultra-low gate charge characteristics
- Suitable for load switch applications
- Capable of PWM operations
Applications
- Load switching circuits
- Pulse Width Modulation (PWM) applications
Procurement Notes
Verify the specific ordering suffix against official Alpha & Omega Semiconductor documentation to confirm exact electrical tolerances or packaging variations. Ensure compatibility with RoHS standards if required by the target assembly process. Confirm that the component meets all absolute maximum ratings for the intended operating environment before integration.
Selection Notes
Select this component for designs requiring efficient P-channel switching with minimal gate drive power consumption. The low gate charge supports high-frequency operation, while the 30V rating suits standard low-voltage logic interfaces. Evaluate thermal management requirements based on the specified junction-to-ambient resistance values for the target PCB layout.
Part Context
This part belongs to the AO44 series of P-Channel MOSFETs from Alpha & Omega Semiconductor. These devices are engineered for general-purpose switching tasks where efficiency and speed are prioritized. The family typically offers various current and voltage ratings within the same package footprint to facilitate design flexibility across different product lines.
Replacement Considerations
Direct substitutes must match the -30V VDS, -7A ID, and SOIC-8 package constraints. Verify pinout compatibility and ensure equivalent RDS(ON) and gate charge specifications to maintain circuit performance without redesigning the driver stage.
