AP2141AW-7

Overview

The AP2141AW-7 is a single-channel, current-limited high-side power switch manufactured by Diodes Incorporated. Designed for USB and hot-swap applications, it operates within an input voltage range of 2.7V to 5.5V. The device provides accurate over-current limiting at 0.8A and includes thermal protection with short-circuit capabilities. It features a typical rise time of 0.6ms and a maximum shutdown current of 1µA. The component incorporates a 7ms deglitch capability on the open-drain Flag output to prevent false fault reporting. It is available in a WSON-6 package and complies with RoHS standards.

Feature Summary

• Integrated high-side power switching optimized for Universal Serial Bus (USB) and hot-swap environments
• Built-in over-current and thermal protection with controlled rise time and under-voltage lockout
• Open-drain Fault Report (FLG) output with 7ms typ deglitch blanking time for reliable status indication
• Reverse current blocking capability to protect upstream power sources

Applications

• Consumer electronics such as LCD TVs, monitors, and game machines
• Communication devices including set-top boxes, GPS units, and smartphones
• Computing peripherals like laptops, desktops, servers, printers, docking stations, and hubs

Procurement Notes

Verify the specific suffix 'W' confirms the WSON-6 package variant when sourcing. Confirm RoHS compliance and lead-free finish requirements against the latest manufacturer datasheet revision. Ensure the active-low enable logic matches the system design, as this model differs from the active-high AP2151 series. Check for any recent product change notifications regarding pinout or electrical characteristics before finalizing procurement.

Selection Notes

Select the AP2141AW-7 when an active-low enable signal is required for single-port USB power distribution. Compare the 0.8A current limit and 95mΩ on-resistance against load requirements to ensure adequate headroom. Consider the WSON-6 package for space-constrained PCB layouts compared to larger SOP or MSOP options. Evaluate the need for the flag output if fault monitoring is critical for the application's safety or diagnostic protocols.

Part Context

This component belongs to the AP2141/AP2151 family of integrated power switches designed by Diodes Incorporated. These devices are engineered to provide robust protection for downstream loads in portable and computing applications. The family shares core functionalities such as current limiting and thermal shutdown but differs in enable polarity and package options. This specific part represents the low-enable variant in a compact surface-mount form factor.

Replacement Considerations

The AP2151 series serves as a functional alternative but utilizes an active-high enable input rather than active-low. Verify that the control logic compatibility allows for direct substitution without additional level-shifting circuitry. Other generic USB power switches may lack the specific 7ms deglitch feature or exact current limit specifications found in this Diodes Incorporated part.