AON7611

Overview

The AON7611 is a complementary MOSFET array manufactured by Alpha & Omega Semiconductor Inc., housed in an 8-DFN (3x3 mm) package with an exposed pad. It integrates one N-channel and one P-channel logic-level transistor within a single component. The device supports a maximum drain-source voltage of 30 V for both channels. Continuous drain current ratings are specified at 9 A for the N-channel and 18.5 A for the P-channel. The on-resistance is rated at 50 mΩ at 4 A and 10 V gate drive. Key electrical characteristics include a gate charge of 10 nC at 10 V, an input capacitance of 170 pF at 15 V, and a threshold voltage of 2.5 V at 250 µA. The unit operates within a junction temperature range of -55 °C to 150 °C.

Feature Summary

• Integrates complementary N-channel and P-channel MOSFETs in a single compact surface-mount package
• Features logic-level gate drive capability for direct interface with standard digital control signals
• Designed for high-efficiency switching applications requiring low on-resistance and fast response times

Applications

• DC-DC converter synchronous rectification stages
• Motor driver bridge circuits
• Load switch implementations in portable electronics

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest datasheet to confirm pinout compatibility and thermal specifications. Ensure that the selected variant matches the required RoHS compliance status and packaging format for the intended assembly process. Cross-reference the part number with official distributor catalogs to confirm current availability and lead times before finalizing procurement plans.

Selection Notes

Select this component when space constraints necessitate a dual-transistor solution in a small footprint. Evaluate the 50 mΩ on-resistance against the target load current to ensure acceptable power dissipation levels. Confirm that the 30 V voltage rating provides sufficient headroom for the application's supply voltage. Consider the thermal performance of the 8-DFN package relative to the PCB copper area available for heat sinking.

Part Context

The AON7611 belongs to Alpha & Omega Semiconductor's portfolio of complementary MOSFET arrays. These devices are engineered to replace discrete N-channel and P-channel pairs, reducing board space and simplifying assembly. The 8-DFN package offers improved thermal performance compared to traditional plastic packages, making it suitable for power management applications where efficiency and size are critical design parameters.

Replacement Considerations

No public confirmed substitute part numbers are identified in the provided documentation.