Renesas Collaborates with Qualcomm Technologies to Speed Mainstream Adoption of Wireless Charging for Smartphones

By Tiera Oliver

Associate Editor

Embedded Computing Design

April 15, 2021


Renesas Collaborates with Qualcomm Technologies to Speed Mainstream Adoption of Wireless Charging for Smartphones

Renesas Electronics expanded its ongoing work with Qualcomm Technologies to include 30W wireless charging capabilities for mid-range smartphones powered by the latest Qualcomm Snapdragon 780G 5G Mobile Platform.

This is the second high-power wireless charging smartphone reference design collaboration for the two companies. The first solution, designed for flagship devices, is sampling commercially now. This latest phase is a step that extends the global leaders’ collaboration to bring integrated, advanced wireless power features as a standard feature in 5G smartphones from flagship to mainstream devices. 

Qualcomm Technologies’ 5G mobile reference designs provide solutions that are intended to facilitate smartphone OEMs to implement wireless charging on flagship and mid-range smartphones, with Multi-Time Programmability (MTP) and OTA updates to simplify software development and Qi certification process. Per the companies, the Renesas solution offers ideal integration with over 85% end-to-end system efficiency to help expand the reach of wireless power technology to a broad set of customers and simplify the process of adding wireless charging. 

Also, per the companies, the Renesas P9412 wireless power receiver is the industry’s first 30W power receiver with a high voltage integrated capacitor divider, offering superior power efficiency with 40-percent reduction in solution size compared with conventional solutions and freeing up PCB area for customers to include other features. For a safe and fast charging experience, a custom high-power protocol is embedded in the device firmware, allowing the system to authenticate power transfer beyond the 15W defined by WPC EPP standard. Renesas’ WattshareTMtechnology enables the mobile device to become a power source and wirelessly charge accessories in the ecosystem, such as earbuds and smart watches.   

The new reference design is available now. 

 For more information, visit: For information on the reference designs, visit:

Tiera Oliver, Associate Editor for Embedded Computing Design, is responsible for web content edits, product news, and constructing stories. She also assists with newsletter updates as well as contributing and editing content for ECD podcasts and the ECD YouTube channel. Before working at ECD, Tiera graduated from Northern Arizona University where she received her B.S. in journalism and political science and worked as a news reporter for the university’s student led newspaper, The Lumberjack.

More from Tiera