Diodes Incorporated AP22615AWU-EVM

Overview

AP22615AWU-EVM from Diodes Incorporated is an evaluation module for the AP22615, a 3A adjustable-current-limit high-side power switch in TSOT26 package, featuring output over-voltage protection (OVP), USB PD3.0 fast role swap support (110 µs recovery), and 40 mΩ on-resistance - designed for USB load switching and hot-swap applications in ultrabooks and SSDs.

For engineers reviewing the AP22615AWU-EVM datasheet, AP22615AWU-EVM pinout, AP22615AWU-EVM application, or AP22615AWU-EVM equivalent, this EVM enables rapid validation of current-limit accuracy (0.4–4.0 A via RLIM), fault reporting timing (7 ms FLG deglitch), OVP auto-recovery behavior, and fast role swap transient response under real capacitive load conditions.

Technical Context

The AP22615AWU-EVM implements the AP22615 IC in active-high enable configuration with 6.8 kΩ ISET resistor, enabling precise 3A current limiting at 5V input. It integrates all required passive components - including 1 µF input MLCC, 0.1 µF bypass, and 100 µF bulk output capacitor - and exposes IN, OUT, EN, FLG, and GND to test points for oscilloscope monitoring and load control.

Board-level design supports both thermal characterization (TSOT26 junction-to-ambient R_ΘJA = 80 °C/W) and protection validation: short-circuit response time, OVP clamping at 23 V, reverse-current blocking, and under-voltage lockout below 3.0 V - all without external compensation or timing components.

Key Specifications

Availability

AP22615AWU-EVM is available at Aetrix Electronics and suitable for USB PD3.0 validation, ultrabook power sequencing, SSD hot-swap testing, and consumer electronics load-switch qualification requiring stable component supply and pre-validated reference designs.

Supply support for AP22615AWU-EVM 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 power management, signal integrity, and protection solutions for computing, consumer, and industrial markets.

The AP22615 belongs to Diodes' high-side load switch product line, engineered specifically for USB-compliant hot-swap and fast-role-swap applications where precision current limiting, output OVP, and robust fault recovery are mandatory.

FAQ

What is the purpose of the 6.8 kΩ resistor (R2) on the AP22615AWU-EVM?

R2 sets the current-limit threshold for the AP22615 IC via its ISET pin. With 6.8 kΩ (1% tolerance), it configures a nominal 3.0 A current limit at 5 V input, enabling immediate validation of adjustable current limiting without external component changes. The resistor is placed directly on the board per the AP22615 datasheet's recommended layout for stable operation.

Does the AP22615AWU-EVM support both active-high and active-low enable configurations?

No - the AP22615AWU-EVM is configured exclusively for active-high enable (EN logic high ≥1.2 V). For active-low operation, Diodes offers the AP22615BWU-EVM variant. The board's JP1 jumper and IC_GND/EN&Hi short position confirm this fixed polarity; no hardware modification converts it to active-low mode.

Can the AP22615AWU-EVM be used to verify USB PD3.0 fast role swap timing?

Yes - the board validates fast role swap performance per USB PD3.0 spec: output voltage recovers to valid USB range (4.75–5.25 V) within ≤110 µs after polarity reversal. This is confirmed using the exposed OUT and FLG test points with a fast oscilloscope, leveraging the AP22615's internal OVP recovery circuitry and controlled rise time.

What protection features can be tested directly on the AP22615AWU-EVM?

All core protections are accessible: over-current (via FLG assertion at set limit), output over-voltage (by injecting >23 V at OUT), short-circuit (direct OUT-to-GND fault), over-temperature (via thermal camera on U1), and reverse-current blocking (by back-driving OUT while EN is low). Each triggers auto-recovery and observable FLG behavior without external circuitry.