Diodes Incorporated AP2411S-13

Overview

AP2411S-13 from Diodes Incorporated is a single-channel, current-limited high-side power switch optimized for USB and hot-swap applications. It features active-high enable, 2.5A accurate current limiting, 70mΩ R_DS(ON) at 5V, 2µs short-circuit response time, and integrated output discharge. It operates from 2.7V to 5.5V input and latches off after overcurrent detection with 7ms deglitch.

For engineers reviewing the AP2411S-13 datasheet, AP2411S-13 pinout, AP2411S-13 application, or AP2411S-13 equivalent, this device delivers precise current limiting, reverse current blocking, thermal shutdown at 140°C, UVLO (2.0V threshold), and fault reporting via open-drain FLG - critical for robust USB port protection and capacitive load management.

Technical Context

The AP2411S-13 implements an N-channel MOSFET high-side switch with internal current-sense FET architecture-eliminating external sense resistors while maintaining low conduction loss. Its control logic includes deglitched overcurrent detection (7ms blanking), thermal shutdown with 20°C hysteresis, and UVLO with 50mV hysteresis.

It integrates soft-start via built-in slew-rate control (0.6ms typical rise time), output discharge path (R_DIS = 100Ω), and active-low open-drain FLG reporting for both overtemperature and overcurrent faults-enabling system-level fault isolation without external timing components.

Key Specifications

Pinout & Package

AP2411S-13 is supplied in SO-8 package per ordering code "S", with exposed pad for thermal enhancement. Pin functions are validated per Diodes DS35113 Rev. 6–2.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS2051BDR and RT9711CGQW, AP2411S-13 uniquely combines 70mΩ R_DS(ON), integrated discharge, 20°C thermal hysteresis, and 2.0V UVLO-delivering superior system-level robustness for unattended USB hot-swap deployments without external component additions.

Availability

AP2411S-13 is available at Aetrix Electronics and suitable for USB port protection, docking station power management, and set-top box peripheral hub designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant green packaging.

Supply support for AP2411S-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 computing, consumer, and industrial markets.

The AP24xx family targets USB-compliant hot-swap and high-capacitance load switching, emphasizing latch-off safety, fast fault response, and minimal external component count for space-constrained board designs.

FAQ

What is the purpose of the 7ms deglitch on the FLG pin?

The 7ms deglitch prevents false overcurrent reporting caused by transient inrush currents during power-up or capacitive load switching. It ensures FLG only asserts after sustained overload-eliminating need for external RC filtering while maintaining fast 2µs fault detection latency.

Does AP2411S-13 require external components for basic operation?

No external components are required for core functionality. A 0.1µF ceramic capacitor between IN and GND is mandatory for stability. Output discharge, UVLO, thermal shutdown, and FLG blanking are fully integrated-no resistors, capacitors, or diodes needed for protection or reporting.

How does the output discharge function operate?

The discharge function activates automatically when EN is de-asserted or VIN falls below UVLO. An internal 100Ω resistor connects OUT to GND, discharging output capacitance to <0.5V within 0.6ms. This prevents floating voltages that could disrupt downstream USB enumeration or cause latch-up in connected devices.

Can AP2411S-13 be used in 3.3V-only systems?

Yes. Its 2.7V–5.5V input range fully supports 3.3V operation. At VIN=3.3V, R_DS(ON) is 90–108mΩ (25°C), delivering ≤216mW conduction loss at 2A. UVLO remains functional (2.0V threshold), and all protections-including thermal shutdown and FLG reporting-operate identically across the full voltage range.