AP33771DKZ-13

Overview

The AP33771DKZ-13 is a highly integrated USB Type-C PD 3.0 sink controller manufactured by Diodes Incorporated, housed in a W-QFN4040-24 (Type A1) package. It negotiates with standard PD 3.0 adapters to acquire required power profiles for Type-C connector-equipped devices. The device supports up to eight voltage selections via VSEL pins and ten maximum power levels through the PSEL pin resistor setting. Operating within a supply voltage range of 3.3V to 24V, it features an OTP ROM for firmware storage, OVP protection with hard reset, and NMOS VBUS switch control.

Feature Summary

• Supports USB PD Rev. 3.0 v1.2 compliance with USB-IF certificated TID: 5000
• Enables flexible power configuration through external resistor settings for voltage and capability selection
• Integrates overvoltage protection with automatic hard reset and auto-restart capabilities
• Includes built-in LED indication logic to display charging status and negotiation faults

Applications

• USB Type-C connector-equipped battery-powered devices
• USB Type-C connector-equipped DC-power input devices
• USB PD3.0 PPS testers
• USB Type C-to-traditional barrel connector power adaptor cables

Procurement Notes

Verify component authenticity against official Diodes Incorporated documentation prior to integration. Confirm that the specific ordering suffix DKZ corresponds to the W-QFN4040-24 package type. Ensure design compatibility with the documented absolute maximum ratings and operating conditions to maintain system reliability and safety standards.

Selection Notes

Select this controller for designs requiring USB PD 3.0 sink functionality without complex MCU integration. The fixed firmware stored in OTP ROM simplifies development compared to programmable alternatives. Verify that the target application operates within the specified -40°C to +85°C temperature range and utilizes the recommended W-QFN4040-24 footprint for optimal thermal performance.

Part Context

This component belongs to the AP33771 series of USB Power Delivery sink controllers designed for cost-effective high-performance solutions. It serves as a dedicated interface between USB Type-C sources and downstream power conversion units. The device eliminates the need for discrete high-voltage components by integrating necessary protocol handling and power management functions into a single chip.

Replacement Considerations

The datasheet explicitly states that the AP33771 is not recommended for new designs and advises using the AP33771C instead. Designers should evaluate the AP33771C for enhanced features such as PD 3.1 EPR support and updated certification before proceeding with procurement or implementation.