Diodes Incorporated AP2401AMP-13

Overview

AP2401AMP-13 from Diodes Incorporated is a single-channel, current-limited, high-side power switch with latch-off functionality, designed for USB and hot-swap applications. It delivers 2.0A continuous load current, features 70mΩ typical R_DS(ON) at 5V, integrates output discharge, reverse current blocking, and provides overcurrent, overtemperature, short-circuit, and UVLO protection. It operates across 2.7V–5.5V input range and is qualified for LCD TVs, docking stations, and embedded USB power rails.

For engineers reviewing the AP2401AMP-13 datasheet, AP2401AMP-13 pinout, AP2401AMP-13 application, or AP2401AMP-13 equivalent, key selection criteria include latch-off behavior after 7ms deglitch, active-low enable logic, thermal shutdown at 140°C, and SO-8EP package thermal performance (θ_JA = 92°C/W).

Technical Context

The AP2401AMP-13 implements an N-channel MOSFET high-side switch with integrated current-sense FET and thermal sensing circuitry. Its protection architecture combines fast 2µs short-circuit response, 7ms deglitch-blanked FLG reporting, and automatic latch-off-no auto-retry. The device uses internal soft-start to limit inrush, and its discharge function activates only when disabled, providing controlled 105Ω resistive path to GND.

UVLO triggers at 2.0V (rising) with 50mV hysteresis, preventing false turn-on during brown-out. Thermal shutdown activates at 140°C with 20°C hysteresis, cycling until fault removal. All protections operate independently of EN state once triggered, and FLG remains asserted low until power cycle or EN toggle.

Key Specifications

Pinout & Package

AP2401AMP-13 is supplied in MSOP-8EP (exposed pad) package, optimized for thermal performance with θ_JA = 92°C/W when mounted on 2"×2" FR-4 PCB with thermal vias to ground plane. Exposed pad must be soldered to GND for thermal management but not used as primary current return path.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side power switch applications.

Compared with AP2401AMP-13, AP2411AMP-13 offers identical protection and thermal performance with inverted enable polarity, while TCK112G,115 trades latch-off reliability and integrated discharge for lower R_DS(ON) and auto-retry - making it less suitable for safety-critical or hot-swap-sensitive designs.

Availability

AP2401AMP-13 is available at Aetrix Electronics and suitable for USB 3.0 hub power management, laptop docking station rails, and industrial embedded USB host applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant "Green" packaging.

Supply support for AP2401AMP-13 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for consumer, industrial, and automotive markets.

The AP2401A/AP2411A family targets USB-compliant hot-swap power distribution, delivering integrated protection, latch-off safety, and compact thermal packaging for space-constrained portable and embedded systems.

FAQ

What is the difference between AP2401AMP-13 and AP2411AMP-13?

AP2401AMP-13 has active-low enable (EN low = ON), while AP2411AMP-13 has active-high enable (EN high = ON). All other electrical specifications-including current limit (2.5A), R_DS(ON) (70mΩ), thermal shutdown (140°C), and FLG behavior-are identical. Pinout, package, and protection features match exactly, making them drop-in replacements except for enable polarity.

Does AP2401AMP-13 require external components for overcurrent protection?

No. AP2401AMP-13 integrates current-sensing FET, deglitch timer, latch-off logic, and FLG reporting-no external resistors, capacitors, or comparators are needed. The 7ms deglitch window rejects transient inrush while reliably detecting sustained overloads, and the 2.5A current limit is trimmed at wafer test for ±10% accuracy across temperature.

Can AP2401AMP-13 drive a 120µF load capacitance safely?

Yes. The device's 0.6ms typical rise time and built-in soft-start limit inrush into 120µF loads at 5V input. Application data (Figure 1) confirms stable turn-on without oscillation or input droop. For best results, place a 0.1µF ceramic capacitor directly between IN and GND, and use the integrated discharge function to clear residual charge when disabling.

How does the thermal shutdown and hysteresis work in AP2401AMP-13?

Thermal shutdown activates at 140°C junction temperature, turning off the switch and asserting FLG low. Hysteresis is fixed at 20°C, so the device remains off until junction temperature falls to ≤120°C. Recovery requires both cooldown *and* toggling EN or cycling VIN-no auto-restart-ensuring faults are addressed before re-enabling power.