AP2141SG-13

Overview

The AP2141SG-13 is a single-channel high-side power switch from Diodes Incorporated, designed for USB and hot-swap applications. It operates within a supply voltage range of 2.7 V to 5.5 V. The device supports an output current of 0.5 A with a maximum current limit of 800 mA. Its maximum on-resistance is 115 mΩ. Key timing parameters include a maximum rise time of 50 µs and a maximum fall time of 10 µs. It functions reliably across an operating temperature range from -40 °C to +85 °C.

Feature Summary

• Integrated thermal limiting and short-circuit protection mechanisms ensure robust operation under fault conditions.
• Features controlled rise time functionality to minimize inrush currents during power-up sequences.
• Includes undervoltage lockout (UVLO) to prevent unreliable switching at low input voltages.
• Provides an open-drain Flag output with 7 ms deglitch capability for accurate over-current status reporting.

Applications

• Universal Serial Bus (USB) port power distribution
• Hot-swap circuitry for peripheral devices
• Battery-powered equipment load switching

Procurement Notes

Verify the specific suffix 'SG-13' against the manufacturer's official datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with RoHS directives if required by your assembly process. Cross-reference the part number with authorized distributors to validate authenticity and traceability before procurement.

Selection Notes

Select this component when a single-channel high-side switch with 0.5 A continuous current capability is required. It is suitable for designs needing integrated protection features such as thermal shutdown and current limiting. Consider the MSOP-8EP package for space-constrained PCB layouts requiring surface-mount technology.

Part Context

This device belongs to the AP2141/AP2151 family of integrated high-side power switches optimized for USB compliance. The series offers both polarities of enable inputs and is available in multiple packages including SO-8, MSOP-8EP, SOT25, and U-DFN2018. It is engineered to simplify power distribution design by combining switching and protection functions.

FAQ

What is the purpose of the Flag output?

The open-drain Flag output indicates over-current or thermal shutdown events. It includes a 7 ms deglitch filter to prevent false triggering without requiring external components.

Does the AP2141SG-13 support hot-swapping?

Yes, the device is optimized for hot-swap applications, featuring controlled rise times to manage inrush currents during connection.