AOC2804

Overview

The AOC2804 is a dual N-channel MOSFET array manufactured by Alpha & Omega Semiconductor. It utilizes Trench Power AlphaMOS technology to achieve low on-resistance and includes ESD protection for enhanced battery safety. The device features a common-drain configuration, simplifying circuit design for load switch applications. Key electrical parameters include a drain-source voltage (Vdss) of 20V and a continuous drain current (Id) of 4A. At Vgs = 4.5V, the source-to-drain on-resistance (Rds(on)) is less than 22mΩ. The gate charge (Qg) is 9.5nC at 4.5V. The component operates within a junction temperature range of -55°C to 150°C and is housed in a compact 4-XFDFN package.

Feature Summary

• Common-drain configuration designed for simplified load switch implementation
• Integrated ESD protection to improve battery performance and safety
• Trench Power AlphaMOS technology enabling low Rds(on)
• RoHS and Halogen-Free compliant construction

Applications

• Battery protection switches
• Portable electronic devices requiring load switching
• Power management circuits in mobile systems

Procurement Notes

Verify the specific ordering suffix and tape-and-reel quantity against the manufacturer's latest datasheet before procurement. Confirm that the 4-AlphaDFN package dimensions match the target PCB footprint. Ensure compliance with RoHS and Halogen-Free requirements if mandated by the end-product specifications. Check for any recent product change notices regarding assembly or material updates.

Selection Notes

Select the AOC2804 when a dual N-channel solution with a common-drain topology is required for low-voltage load switching. The 20V rating and 4A current capacity suit portable applications. Consider the low gate charge for faster switching speeds. Verify that the thermal dissipation capabilities of the 4-XFDFN package are sufficient for the intended duty cycle and ambient temperature conditions.

Part Context

The AOC2804 belongs to Alpha & Omega Semiconductor's portfolio of low-voltage trench MOSFETs. It is part of the AlphaMOS series, which emphasizes efficiency and integration for consumer electronics. The common-drain arrangement distinguishes it from standard high-side or low-side single FETs, offering a compact alternative for bidirectional or protected switching tasks in space-constrained designs.

Replacement Considerations

Publicly confirmed substitute part numbers for the AOC2804 were not identified in the provided documentation. Engineers should consult official cross-reference lists or contact the manufacturer directly for validated alternatives.