Diodes Incorporated AP22652W6-EVM

Overview

AP22652W6-EVM from Diodes Incorporated is an evaluation module for the AP22652W6 precision adjustable current-limited power switch in SOT26 package, supporting up to 2.1 A continuous load current, programmable current limit (125–2665 mA via 20 kΩ RLIM), and active-low enable logic. It enables rapid validation of over-current protection, fault reporting, and soft-start behavior in USB-compliant power delivery paths.

For engineers reviewing the AP22652W6-EVM datasheet, AP22652W6-EVM pinout, AP22652W6-EVM application, or AP22652W6-EVM equivalent, this board provides direct access to IN, OUT, EN, FAULT, and ILIM signals with test points, pre-populated 120 µF output capacitance, and verified layout for fast short-circuit response (5 µs) and reverse current blocking.

Technical Context

The AP22652W6-EVM implements a fixed-configuration demonstration of the AP22652W6 IC, using R_LIM = 20 kΩ to set a nominal current limit of ~1.735 A (±7% accuracy). It includes 10 µF input and 0.1 µF bypass capacitors, plus a 120 µF aluminum output capacitor required for USB compliance.

All passive components are pre-installed per Diodes' recommended operating conditions: 3.0–5.5 V input range, -40°C to +85°C ambient operation, and 6 ms deglitch on FAULT output. The board supports both resistive and adjustable current loads with real-time monitoring via test points at all critical nodes.

Key Specifications

Availability

AP22652W6-EVM is available at Aetrix Electronics and suitable for USB power delivery validation, embedded system protection testing, and industrial power rail qualification requiring stable component supply and repeatable bench-level characterization.

Supply support for AP22652W6-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 high-reliability power management, signal integrity, and protection solutions for consumer, computing, and industrial markets.

The AP22652/53 product line delivers precision current-limiting power switches optimized for robustness in systems with heavy capacitive loads and short-circuit risk - targeting USB ports, display power rails, and peripheral interface protection.

FAQ

What is the purpose of the 120 µF output capacitor on the AP22652W6-EVM?

The 120 µF aluminum electrolytic capacitor satisfies USB specification requirements for output capacitance in high-current power switches. It stabilizes the output during heavy load transients and ensures reliable short-circuit response without voltage collapse, directly enabling compliance verification for USB-compliant designs.

Can the AP22652W6-EVM be used to evaluate the AP22653W6 device?

No - the AP22652W6-EVM is configured specifically for the AP22652W6 (active-low enable). The AP22653W6 uses active-high enable logic and requires different pull-up/pull-down configurations. Diodes provides a separate AP22653W6-EVM variant with matching layout but adjusted EN biasing.

How is short-circuit protection validated using this EVM?

Short-circuit validation is performed by increasing the load current on the OUT terminal until the FAULT pin asserts low (after 6 ms deglitch), confirming current limiting at ~1.735 A. Oscilloscope capture of OUT voltage and FAULT timing verifies 5 µs typical response and controlled rise/fall behavior per datasheet specifications.

Does the EVM include thermal protection demonstration capability?

Yes - the board's layout exposes the AP22652W6's thermal pad (SOT26 package) and operates within -40°C to +85°C ambient range. Sustained over-current or elevated ambient conditions trigger internal thermal shutdown, observable as FAULT assertion followed by automatic recovery once junction temperature falls below threshold.