Diodes Incorporated AP22815BWT-EVM

Overview

AP22815BWT-EVM from Diodes Incorporated is an evaluation module for the AP22815BWT 3A single-channel current-limited high-side power switch, designed to validate USB PD3.0 fast role swap functionality, output over-voltage protection (OVP), and auto-recovery fault response in hot-swap applications. It supports 3.0–5.5V input, features TSOT25 packaging, and enables rapid verification of controlled rise time (2.1 ms), 40mΩ R_DS(on), and 7ms deglitched FLAG reporting.

For engineers reviewing the AP22815BWT-EVM datasheet, AP22815BWT-EVM pinout, AP22815BWT-EVM application, or AP22815BWT-EVM equivalent, this EVM provides test-point access to IN, OUT, EN, FLG, and GND; supports active-low enable configuration; and validates real-time current limiting, OVP recovery within 110 µs, and thermal/short-circuit auto-recovery behavior under capacitive load conditions.

Technical Context

The AP22815BWT-EVM implements a fixed-current-limit (3A) high-side load switch with integrated discharge circuitry on the OUT pin, enabling safe hot-plug operation into heavy capacitive loads. Its design centers on validating the AP22815BWT's output OVP clamp at 23 V, 40mΩ on-resistance, and 2.1 ms soft-start rise time under 3.0–5.5V supply conditions.

The board integrates all required passive components-including 1µF input MLCC (TAIYO YUDEN TMK107B7105KA-T), 0.1µF output decoupling, and 100µF aluminum bulk capacitor (NICHICON)-and exposes EN/FLG signals via test points to verify active-low logic control and 7ms blanking window during over-current events.

Key Specifications

Availability

AP22815BWT-EVM is available at Aetrix Electronics and suitable for USB PD3.0 validation, hot-swap load switch qualification, and high-side power sequencing in Ultrabook, tablet, SSD, and telecom power subsystems requiring stable component supply and rapid functional verification.

Supply support for AP22815BWT-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 consumer, computing, and industrial markets.

The AP22815 series belongs to Diodes' high-side load switch product line, engineered specifically for USB-compliant hot-swap applications demanding fast OVP response, robust short-circuit immunity, and seamless integration with PD3.0 fast role swap protocols.

FAQ

What is the primary function of the AP22815BWT-EVM?

The AP22815BWT-EVM is a dedicated evaluation module for the AP22815BWT high-side power switch. It enables engineers to validate key electrical behaviors-including current limiting at 3A, output over-voltage protection clamping at 23V, 110µs OVP recovery during USB PD3.0 fast role swap, and 7ms deglitched FLAG reporting-using only a +5V supply and resistive/capacitive load.

Does the AP22815BWT-EVM support both active-high and active-low enable configurations?

No-the AP22815BWT-EVM is configured exclusively for the AP22815BWT variant, which features active-low enable logic. The board implements EN tied through a jumper (JP1) to "Low" position and includes a 10kΩ pull-up resistor (R1) to VIN, confirming the active-low interface per the AP22815BWT datasheet specification.

Which passive components are pre-installed and validated on the AP22815BWT-EVM?

The board includes fully populated, manufacturer-validated passives: 1µF X7R MLCC (TAIYO YUDEN TMK107B7105KA-T) at IN, 0.1µF X7R MLCC (TAIYO YUDEN HMK107C7104KA-T) at OUT, and a 100µF/35V aluminum electrolytic capacitor (NICHICON UHV1V101MED) for bulk output storage-all selected to meet USB hot-swap surge and stability requirements.

Can the AP22815BWT-EVM be used to evaluate adjustable current limiting?

No-it is not compatible with adjustable current limiting. The AP22815BWT uses a fixed 3A current limit; only the AP22615 variants (e.g., AP22615AWU/BWU) support adjustable limiting via an external ISET resistor. This EVM omits ISET routing and R2 placement, confirming its exclusive alignment with the fixed-limit AP22815BWT device.