P9028AC-0NBGI8

Overview

The P9028AC-0NBGI8 is an ultra-compact dual-mode wireless power receiver IC compliant with WPC v1.1 and PMA standards. It converts AC signals from a resonant tank into a regulated 5V output. The device integrates a synchronous full-bridge rectifier and a 5V tracking LDO regulator. It supports automatic dual-mode operation for improved efficiency and includes advanced programmable foreign object detection (FOD). Control circuits enable load modulation to transmit message packets to the base station, minimizing external component requirements.

Feature Summary

• Dual-mode compliance with WPC v1.1 and PMA standards
• Integrated synchronous full-bridge rectifier and 5V tracking LDO
• Advanced programmable foreign object detection (FOD)
• Automatic switching between WPC AC and PMA DC modulation

Applications

• Mobile device wireless charging receivers
• Consumer electronics requiring Qi-compliant power input
• Portable devices utilizing PMA-compatible charging bases
• Compact power receiver solutions with minimal BOM

Procurement Notes

Verify the specific suffix '0NBGI8' against official Renesas documentation, as primary datasheets reference '0AWGI'. Confirm current availability status, as the P9028AC family may be restricted to high-volume or strategic applications. Ensure compatibility with your PCB layout regarding the WLCSP package dimensions and pitch before ordering.

Selection Notes

Select this component for designs requiring strict adherence to WPC v1.1 and PMA protocols in a small form factor. The integrated FOD and control logic reduce external component count. Verify that the application environment supports the required thermal management for the WLCSP package. Ensure the host system can interface with the I2C registers for monitoring and configuration if needed.

Part Context

The P9028AC belongs to Renesas's line of single-chip wireless power receiver solutions. It succeeds earlier models like the P9023 by offering enhanced compactness and dual-mode support. The device is designed to replace discrete rectifier and regulator combinations, simplifying the design process for manufacturers implementing wireless charging capabilities in mobile and portable devices.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. The P9023 is listed as a related product but differs in architecture and certification details. Users should consult Renesas technical support for direct replacements or obsolescence management strategies.