AP22811AW5-7

Overview

The AP22811AW5-7 is a single-channel high-side power switch IC from Diodes Incorporated, optimized for USB and hot-plug applications. It operates within a supply voltage range of 2.7 V to 5.5 V and delivers a continuous output current of 2 A with a maximum current limit of 2.7 A. The device features a maximum on-resistance of 65 mOhms, ensuring efficient power distribution. Key timing parameters include a maximum rise time of 1.7 ms and a maximum fall time of 20 us. It functions reliably across an operating temperature range of -40°C to +85°C and is housed in a compact SOT-25-5 surface-mount package.

Feature Summary

• Integrated protection against overcurrent, short circuit, and overtemperature with automatic recovery capabilities.
• Built-in output discharge function ensures controlled voltage capacitor discharge upon shutdown.
• Reverse current blocking prevents backflow from load to source.
• Dedicated flag output provides fault indication with configurable debounce timing.

Applications

• Laptop power distribution networks
• Tablet peripheral interfaces
• Set-top box USB ports
• Telecommunications equipment

Procurement Notes

Verify the specific suffix 'W5' confirms the SOT-25-5 package and standard pinout configuration required for your PCB layout. Confirm that the 'A' designation indicates active-high enable logic, as variants with different letters may utilize active-low control. Ensure the component meets RoHS compliance standards if mandated by your regional manufacturing regulations. Cross-reference the datasheet revision date to ensure compatibility with your design specifications.

Selection Notes

Select this component when a single-channel high-side switch with 2 A capacity is required for USB or general load switching. It is suitable for designs needing integrated thermal and current protection without external sensing resistors. Consider the 65 mOhm on-resistance for efficiency calculations. Verify that the 2.7 V minimum operating voltage aligns with your system's battery or rail characteristics. The SOT-25-5 package is ideal for space-constrained portable electronics.

Part Context

This part belongs to the AP22811 series of power switches designed for USB power distribution. It shares functional similarities with other members like the AP22818 but differs in channel count and specific protection thresholds. The series is engineered to meet USB specification requirements for hot-plugging and surge handling. It serves as a critical interface component between main power rails and peripheral loads in consumer electronics.

Replacement Considerations

The AP22811BW5-7 is a documented variant within the same family, differing primarily in enable logic polarity (active-low vs. active-high). Verify schematic compatibility before substitution. Other Diodes Incorporated high-side switches may offer similar electrical ratings but require careful comparison of package dimensions and pin assignments to ensure physical interchangeability.