AP22811BM8-13

Overview

The AP22811BM8-13 is a single-channel high-side power switch optimized for USB and hot-plug applications. It operates within a 2.7V to 5.5V input voltage range and supports up to 1.5A output current with a typical on-resistance of 50mΩ. The device features integrated protection against overcurrent, short circuits, and overtemperature, all with automatic recovery capabilities. It includes an enable input, a low-active flag output with 6ms debounce, and reverse current blocking. The component is housed in an MSOP-8 package and functions across a temperature range of -40°C to +85°C.

Feature Summary

• Integrated load discharge function ensures controlled discharge of output capacitors.
• Automatic recovery from overcurrent, short circuit, and overtemperature faults.
• Reverse current blocking prevents backflow into the power source.
• Flag output provides fault indication with built-in 6ms debounce filtering.

Applications

• USB port power switching
• Hot-plug applications
• Laptop and tablet peripheral protection
• Set-top boxes and consumer electronics

Procurement Notes

Verify the specific suffix 'BM8' corresponds to the MSOP-8 package and low-active enable logic as documented in the official Diodes Incorporated datasheet. Confirm RoHS compliance and lead-free status requirements match project specifications. Ensure the operating voltage range aligns with the system's supply rails before procurement.

Selection Notes

Select this component for applications requiring compact single-channel power distribution with robust thermal and electrical protection. The MSOP-8 package suits space-constrained designs. Consider the automatic recovery feature if system restarts after fault conditions are acceptable. Verify that the 50mΩ on-resistance meets efficiency requirements for the target load current.

Part Context

This part belongs to the AP2281x series of high-side power switches designed by Diodes Incorporated. These devices are engineered specifically for USB compliance and general-purpose load switching. The series offers various pin configurations and enable polarities to accommodate different system architectures while maintaining consistent protection profiles.

Replacement Considerations

Check for direct substitutes within the AP2281x family, such as variants with different enable polarities or packages. Ensure any replacement maintains the same 2.7V-5.5V operating range and 1.5A current capability. Verify pinout compatibility if swapping between MSOP-8 and other packages like SOT-23-5.

FAQ

Does the AP22811BM8-13 support automatic recovery from fault conditions?

Yes, the device features automatic recovery from overcurrent, short circuit, and overtemperature faults.

What is the purpose of the flag output on this IC?

The flag output indicates fault conditions and includes a 6ms debounce time to prevent false reporting of overcurrent events.