PI3USB9281CXWEX

Power Management - Specialized Overview

The PI3USB9281CXWEX is a USB port protection integrated circuit manufactured by Diodes Incorporated, designed for mobile communications applications. It operates within a supply voltage range of 3 V to 5.5 V and supports an output voltage of 5.5 V. The device features a low operating supply current of 50 uA and provides an output current capability of 5 mA. It is housed in a 20-UQFN (3x4) package with exposed pad, suitable for surface mount installation. The component functions reliably across an extended temperature range from -40°C to +85°C.

Power Management - Specialized Feature Summary

• Provides external detection capabilities for any connected USB device
• Integrates charger detection functionality for power management
• Offers robust protection mechanisms for USB ports

Power Management - Specialized Applications

• Mobile communications devices
• Portable consumer electronics
• USB peripheral interfaces

Power Management - Specialized Procurement Notes

Verify the specific suffix CXWEX against the manufacturer datasheet to confirm the exact package variant and tape-and-reel specifications. Ensure compatibility with the target PCB footprint for the 20-UQFN form factor. Confirm that the required operating temperature range aligns with the -40°C to +85°C specification provided in official documentation before finalizing procurement.

Power Management - Specialized Selection Notes

Select this component when designing systems requiring integrated USB port protection combined with charger detection logic. The 20-UQFN package offers a compact solution for space-constrained mobile designs. Verify that the 3 V to 5.5 V supply range matches the system's power architecture. Consider the 50 uA quiescent current for battery-powered applications where low standby consumption is critical.

Power Management - Specialized Part Context

This part belongs to the PI3USB9281 series from Diodes Incorporated, which focuses on USB interface protection solutions. The series includes variants such as PI3USB9281CGEEX and PI3USB9281AXWEX, offering different packaging options like WLCSP and UQFN. These components are categorized under PMIC and Battery Management products, targeting the mobile communications sector.

Power Management - Specialized Replacement Considerations

Official substitutes include PI3USB9281CGEEX and PI3USB9281AXWEX. Verify pinout compatibility and package dimensions before substitution. Note that some variants may be discontinued; check current availability status in official catalogs.